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PROX

PROX

PROX

Prox Pistons, Gaskets, and Engine Components at JJ Motorsports

Prox, established in the late 1970s, is a respected brand in the powersports industry, specializing in high-performance aftermarket parts for motorcycles, ATVs, and off-road vehicles. With a focus on quality and innovation, Prox offers OEM-style replacements that deliver exceptional reliability and performance for both recreational riders and professionals.

At JJ Motorsports, we provide a comprehensive selection of Prox products, including complete gasket kits, top-end gasket sets, piston kits, connecting rod kits, crankshaft bearing/seal kits, and more. Whether you're rebuilding an engine or upgrading for better durability, Prox delivers precise-fit solutions compatible with major brands like Honda, Kawasaki, Suzuki, and KTM. Explore our inventory to find the ideal parts for your vehicle.

Key features of Prox products include precision engineering to OEM specifications, use of high-silicon-content aluminum alloys for pistons, double-forged construction for strength, and complete kits for easy installation. Shop now and enhance your powersports performance with Prox!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • PROX Connecting Rod 03.2423

    PROX Connecting Rod 03.2423

    PROX

    $175.95
    A quality connecting rod is the critical link between your crankshaft and piston—it must transmit enormous combustion forces with precision while maintaining reliable clearances under extreme RPM and...
    09230150
    SKU:
    09230150
    Availability:
    Ships Same Business Day
    Weight:
    1.48 LBS
    UNITS:
    EACH
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    FORGED STEEL
    Qty in Cart: 0
    Quantity:
    Price:
    $175.95
    Subtotal:
  • PROX Connecting Rod 03.3405

    PROX Connecting Rod 03.3405

    PROX

    $183.95
    A connecting rod is the critical link between your piston and crankshaft—any weakness here directly translates to lost power, reliability issues, or catastrophic failure under load. The PROX 03.3405...
    09230152
    SKU:
    09230152
    Availability:
    Ships Same Business Day
    Weight:
    1.58 LBS
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    FORGED STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $183.95
    Qty in Cart: 0
    Quantity:
    Price:
    $183.95
    Subtotal:
  • PROX Connecting Rod 03.2400

    PROX Connecting Rod 03.2400

    PROX

    $173.95
    A connecting rod is the critical link between your piston and crankshaft—if it fails, your engine fails. The PROX 03.2400 is engineered to handle the brutal reciprocating forces of high-RPM operation...
    09230153
    SKU:
    09230153
    Availability:
    Ships Same Business Day
    Weight:
    1.54 LBS
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MATERIAL:
    FORGED STEEL
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $173.95
    Subtotal:
  • PROX Connecting Rod 03.6217

    PROX Connecting Rod 03.6217

    PROX

    $125.95
    A connecting rod is the critical link between your piston and crankshaft—any weakness here directly compromises power delivery and engine reliability. The PROX 03.6217 arrives fully assembled with...
    09230154
    SKU:
    09230154
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    UNITS:
    EACH
    FEATURES:
    INCLUDES THRUST WASHERS
    MATERIAL:
    FORGED STEEL
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    $125.95
    Qty in Cart: 0
    Quantity:
    Price:
    $125.95
    Subtotal:
  • PROX Connecting Rod 03.4218

    PROX Connecting Rod 03.4218

    PROX

    $132.95
    A quality connecting rod is critical to engine reliability and power delivery—it directly transfers combustion force from the piston to the crankshaft, so any weakness here compromises your entire...
    09230155
    SKU:
    09230155
    Availability:
    Ships Same Business Day
    Weight:
    0.79 LBS
    UNITS:
    EACH
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.6326

    PROX Connecting Rod 03.6326

    PROX

    $173.95
    A connecting rod is the critical link between your piston and crankshaft—it must endure enormous forces at high RPM while maintaining precise tolerances. The PROX 03.6326 comes fully assembled with...
    09230156
    SKU:
    09230156
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    UNITS:
    EACH
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    FORGED STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    $173.95
    Qty in Cart: 0
    Quantity:
    Price:
    $173.95
    Subtotal:
  • PROX Connecting Rod 03.3207

    PROX Connecting Rod 03.3207

    PROX

    $132.95
    A connecting rod is the critical link between your piston and crankshaft—it must withstand extreme forces, precise tolerances, and thousands of combustion cycles without failure. The PROX Connecting...
    09230157
    SKU:
    09230157
    Availability:
    Ships Same Business Day
    Weight:
    0.74 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    CONNECTING ROD KIT
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    RIDING STYLE:
    OFF-ROAD
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.4334

    PROX Connecting Rod 03.4334

    PROX

    $173.95
    A connecting rod is the critical link between your piston and crankshaft—its durability directly impacts engine reliability and power delivery under load. The PROX 03.4334 arrives fully assembled...
    09230158
    SKU:
    09230158
    Availability:
    Ships Same Business Day
    Weight:
    1.14 LBS
    UNITS:
    EACH
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    MATERIAL:
    FORGED STEEL
    RIDING STYLE:
    OFF-ROAD
    $173.95
    Qty in Cart: 0
    Quantity:
    Price:
    $173.95
    Subtotal:
  • PROX Connecting Rod 03.6320

    PROX Connecting Rod 03.6320

    PROX

    $132.95
    A connecting rod failure can end your race day—or worse, damage your entire engine. The PROX Connecting Rod 03.6320 delivers the strength and precision needed to reliably transfer combustion force...
    09230159
    SKU:
    09230159
    Availability:
    Ships Same Business Day
    Weight:
    0.99 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.2225

    PROX Connecting Rod 03.2225

    PROX

    $132.95
    A connecting rod is the critical link between your piston and crankshaft, directly influencing engine responsiveness and reliability under load. The PROX 03.2225 delivers precision engineering with...
    09230160
    SKU:
    09230160
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    UNITS:
    EACH
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.3316

    PROX Connecting Rod 03.3316

    PROX

    $132.95
    A connecting rod is the critical link between your piston and crankshaft—if it fails, your engine fails. The PROX 03.3316 delivers OEM-quality construction with complete assembly, eliminating weak...
    09230162
    SKU:
    09230162
    Availability:
    Ships Same Business Day
    Weight:
    1.07 LBS
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    CONNECTING ROD KIT
    UNITS:
    EACH
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.1406

    PROX Connecting Rod 03.1406

    PROX

    $137.95
    A quality connecting rod is the critical link between your crankshaft and piston—it must handle extreme forces while maintaining precise tolerances, or your engine fails catastrophically. The PROX...
    09230163
    SKU:
    09230163
    Availability:
    Ships Same Business Day
    Weight:
    1.50 LBS
    UNITS:
    EACH
    ENGINE TYPE:
    2-STROKE
    FEATURES:
    INCLUDES THRUST WASHERS
    MATERIAL:
    FORGED STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    $137.95
    Qty in Cart: 0
    Quantity:
    Price:
    $137.95
    Subtotal:
  • PROX Connecting Rod 03.2401

    PROX Connecting Rod 03.2401

    PROX

    $165.95
    A connecting rod is the critical link between your piston and crankshaft—any weakness here translates directly to power loss and reliability issues. The PROX Connecting Rod 03.2401 is engineered for...
    09230165
    SKU:
    09230165
    Availability:
    Ships Same Business Day
    Weight:
    1.12 LBS
    MATERIAL:
    FORGED STEEL
    UNITS:
    EACH
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    $165.95
    Qty in Cart: 0
    Quantity:
    Price:
    $165.95
    Subtotal:
  • PROX Connecting Rod 03.4223

    PROX Connecting Rod 03.4223

    PROX

    $119.95
    A connecting rod is the critical link between your piston and crankshaft—it must handle extreme loads and precise tolerances or your engine fails. The PROX Connecting Rod 03.4223 arrives complete and...
    09230169
    SKU:
    09230169
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    Qty in Cart: 0
    Quantity:
    Price:
    $119.95
    Subtotal:
  • PROX Connecting Rod 03.6248

    PROX Connecting Rod 03.6248

    PROX

    $132.95
    A connecting rod is the critical link between your piston and crankshaft—it must handle extreme combustion pressures and rotational forces without flex or failure. The PROX 03.6248 delivers the...
    09230171
    SKU:
    09230171
    Availability:
    Ships Same Business Day
    Weight:
    0.83 LBS
    UNITS:
    EACH
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    FORGED STEEL
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.4214

    PROX Connecting Rod 03.4214

    PROX

    $132.95
    A connecting rod is the critical link between your piston and crankshaft, transmitting combustion forces while managing extreme stress cycles. The PROX 03.4214 comes fully assembled with precision...
    09230172
    SKU:
    09230172
    Availability:
    Ships Same Business Day
    Weight:
    0.76 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.3224

    PROX Connecting Rod 03.3224

    PROX

    $132.95
    A connecting rod is the critical link between your piston and crankshaft—it must handle extreme forces and precise tolerances to deliver reliable power delivery and engine longevity. The PROX...
    09230174
    SKU:
    09230174
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    CONNECTING ROD KIT
    UNITS:
    EACH
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.1661

    PROX Connecting Rod 03.1661

    PROX

    $199.95
    A connecting rod is the critical link between your piston and crankshaft—when it fails, your engine fails. The PROX 03.1661 delivers OEM-quality construction with complete bearing assemblies...
    09230176
    SKU:
    09230176
    Availability:
    Ships Same Business Day
    Weight:
    2.48 LBS
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    FORGED STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    FEATURES:
    INCLUDES THRUST WASHERS
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • PROX Connecting Rod 03.2434

    PROX Connecting Rod 03.2434

    PROX

    $175.95
    A connecting rod is the critical link between your crankshaft and piston, transmitting combustion forces while managing rotational stress at extreme RPMs. The PROX 03.2434 delivers reliable...
    09230177
    SKU:
    09230177
    Availability:
    Ships Same Business Day
    Weight:
    1.51 LBS
    MATERIAL:
    FORGED STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    ENGINE TYPE:
    4-STROKE
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $175.95
    Subtotal:
  • PROX Connecting Rod 03.3211

    PROX Connecting Rod 03.3211

    PROX

    $132.95
    A connecting rod is the critical link between your piston and crankshaft—any weakness here directly compromises power delivery and engine reliability. The PROX 03.3211 is a complete, ready-to-install...
    09230178
    SKU:
    09230178
    Availability:
    Ships Same Business Day
    Weight:
    0.73 LBS
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    CONNECTING ROD KIT
    UNITS:
    EACH
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.1654

    PROX Connecting Rod 03.1654

    PROX

    $199.95
    A connecting rod is the critical link between your piston and crankshaft—any flex, wear, or imbalance directly undermines engine efficiency and reliability. The PROX 03.1654 is a complete,...
    09230179
    SKU:
    09230179
    Availability:
    Ships Same Business Day
    Weight:
    2.35 LBS
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    INCLUDES THRUST WASHERS
    MATERIAL:
    FORGED STEEL
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • PROX Connecting Rod 03.6319

    PROX Connecting Rod 03.6319

    PROX

    $132.95
    A connecting rod is the critical link between your piston and crankshaft—it must withstand extreme pressures, rapid acceleration, and sustained RPMs without failure. The PROX 03.6319 is engineered to...
    09230180
    SKU:
    09230180
    Availability:
    Ships Same Business Day
    Weight:
    0.98 LBS
    ENGINE TYPE:
    2-STROKE
    FEATURES:
    INCLUDES THRUST WASHERS
    MATERIAL:
    FORGED STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.6017

    PROX Connecting Rod 03.6017

    PROX

    $118.95
    A connecting rod is the critical link between your crankshaft and piston, transmitting combustion forces while managing extreme temperatures and RPM cycles. The PROX 03.6017 is a complete assembly...
    09230182
    SKU:
    09230182
    Availability:
    Ships Same Business Day
    Weight:
    0.63 LBS
    MATERIAL:
    FORGED STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    2-STROKE
    UNITS:
    EACH
    $118.95
    Qty in Cart: 0
    Quantity:
    Price:
    $118.95
    Subtotal:
  • PROX Connecting Rod 03.2304

    PROX Connecting Rod 03.2304

    PROX

    $132.95
    A connecting rod is the critical link between your crankshaft and piston—any weakness here translates directly to power loss and catastrophic failure under high RPM loads. The PROX 03.2304 is...
    09230186
    SKU:
    09230186
    Availability:
    Ships Same Business Day
    Weight:
    1.04 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    $132.95
    Subtotal:
  • PROX Connecting Rod 03.1495

    PROX Connecting Rod 03.1495

    PROX

    $177.95
    A connecting rod is the critical link between your crankshaft and piston—it must handle extreme forces while maintaining precise tolerances. The PROX 03.1495 is engineered for reliability and...
    09230187
    SKU:
    09230187
    Availability:
    Ships Same Business Day
    Weight:
    1.67 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    FORGED STEEL
    $177.95
    Qty in Cart: 0
    Quantity:
    Price:
    $177.95
    Subtotal:
  • PROX Connecting Rod 03.4406

    PROX Connecting Rod 03.4406

    PROX

    $175.95
    A connecting rod is the critical link between your crankshaft and piston, transmitting combustion forces while managing reciprocating loads at extreme RPMs. The PROX 03.4406 arrives fully assembled...
    09230189
    SKU:
    09230189
    Availability:
    Ships Same Business Day
    Weight:
    1.60 LBS
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MATERIAL:
    FORGED STEEL
    Qty in Cart: 0
    Quantity:
    Price:
    $175.95
    Subtotal:
  • PROX Connecting Rod 03.2007

    PROX Connecting Rod 03.2007

    PROX

    $87.95
    A connecting rod is the critical link between your crankshaft and piston—it must withstand extreme pressures and temperatures while maintaining precise tolerances. The PROX Connecting Rod 03.2007 is...
    09230193
    SKU:
    09230193
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $87.95
    Subtotal:
  • PROX Connecting Rod Kit - Yamaha YZ 250 F 03.2414

    PROX Connecting Rod Kit - Yamaha YZ 250 F 03.2414

    PROX

    $173.95
    A connecting rod is the critical link between your piston and crankshaft—any wear, damage, or imbalance here directly compromises engine reliability and performance. The PROX Connecting Rod Kit for...
    09230365
    SKU:
    09230365
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    MATERIAL:
    FORGED
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    $173.95
    Qty in Cart: 0
    Quantity:
    Price:
    $173.95
    Subtotal:
  • PROX Connecting Rod 03.1090

    PROX Connecting Rod 03.1090

    PROX

    $55.95
    A connecting rod is the critical link between your crankshaft and piston—any flex, wear, or weakness here directly compromises engine reliability and power delivery. The PROX 03.1090 is a...
    09230344
    SKU:
    09230344
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    FEATURES:
    INCLUDES THRUST WASHERS
    MATERIAL:
    FORGED STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $55.95
    Subtotal:
  • PROX Connecting Rod 03.1409

    PROX Connecting Rod 03.1409

    PROX

    $183.95
    A connecting rod is the critical link between your crankshaft and piston, and it needs to handle extreme forces without flex or failure. The PROX Connecting Rod 03.1409 delivers precision engineering...
    09230345
    SKU:
    09230345
    Availability:
    Ships Same Business Day
    Weight:
    1.59 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    FEATURES:
    INCLUDES THRUST WASHERS
    MATERIAL:
    FORGED STEEL
    ENGINE TYPE:
    4-STROKE
    $183.95
    Qty in Cart: 0
    Quantity:
    Price:
    $183.95
    Subtotal:
  • PROX Connecting Rod Kit - Beta RR250/300/X-Trainer 03.7313

    PROX Connecting Rod Kit - Beta RR250/300/X-Trainer 03.7313

    PROX

    $129.95
    A connecting rod is the critical link between your piston and crankshaft—any wear or failure here means catastrophic engine damage. The PROX Connecting Rod Kit for Beta RR250/300/X-Trainer models...
    09230352
    SKU:
    09230352
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    ENGINE TYPE:
    2-STROKE
    MATERIAL:
    FORGED
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MATERIAL:
    STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    $129.95
    Qty in Cart: 0
    Quantity:
    Price:
    $129.95
    Subtotal:
  • PROX Connecting Rod 03.4342

    PROX Connecting Rod 03.4342

    PROX

    $165.95
    A connecting rod is the critical link between your crankshaft and piston—it converts linear motion into rotational power, and any weakness here compromises engine reliability and performance. The...
    09230322
    SKU:
    09230322
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MATERIAL:
    FORGED STEEL
    Qty in Cart: 0
    Quantity:
    Price:
    $165.95
    Subtotal:
  • PROX Connecting Rod Kit - Honda XR200R/XL125K 03.1255

    PROX Connecting Rod Kit - Honda XR200R/XL125K 03.1255

    PROX

    $116.95
    The connecting rod is the critical link between your piston and crankshaft—any wear, bend, or failure here will sideline your bike. PROX's complete kit eliminates the guesswork by supplying all...
    09230294
    SKU:
    09230294
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    UNITS:
    KIT
    MATERIAL:
    STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    FORGED
    $116.95
    Qty in Cart: 0
    Quantity:
    Price:
    $116.95
    Subtotal:
  • PROX Piston Kit 01.1342.C

    PROX Piston Kit 01.1342.C

    PROX

    $185.95
    When your engine demands precision and reliability, factory-original performance isn't negotiable. The PROX Piston Kit 01.1342.C delivers OEM-equivalent durability through meticulous Japanese...
    09030815
    SKU:
    09030815
    Availability:
    Ships Same Business Day
    Weight:
    0.52 LBS
    RIDING STYLE:
    OFF-ROAD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    BORE SIZE METRIC:
    76.80 MM
    COMPRESSION RATIO IMPERIAL:
    13.2:1
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    TOP END
    PISTON SIZE METRIC:
    STANDARD SIZE A
    Qty in Cart: 0
    Quantity:
    Price:
    $185.95
    Subtotal:
  • PROX Piston Kit 01.1342.B

    PROX Piston Kit 01.1342.B

    PROX

    $185.95
    Worn or damaged pistons compromise combustion efficiency, reduce power output, and risk catastrophic engine failure. The PROX Piston Kit 01.1342.B delivers OEM-equivalent performance with precision...
    09030816
    SKU:
    09030816
    Availability:
    Ships Same Business Day
    Weight:
    0.51 LBS
    PISTON SIZE METRIC:
    STANDARD SIZE B
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    TOP END
    COMPRESSION RATIO IMPERIAL:
    13.2:1
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    76.80 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $185.95
    Subtotal:
  • PROX Piston Kit 01.1414.C

    PROX Piston Kit 01.1414.C

    PROX

    $195.95
    A worn or damaged piston kit will compromise engine efficiency, increase blow-by, and risk catastrophic engine failure. The PROX Piston Kit 01.1414.C delivers OEM-grade replacement performance with...
    09030819
    SKU:
    09030819
    Availability:
    Ships Same Business Day
    Weight:
    0.88 LBS
    BORE SIZE METRIC:
    96.00 MM
    PRODUCT NAME:
    PISTON KIT
    COMPRESSION RATIO IMPERIAL:
    12.0:1
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON SIZE METRIC:
    STANDARD SIZE C
    UNITS:
    EACH
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    Qty in Cart: 0
    Quantity:
    Price:
    $195.95
    Subtotal:
  • PROX Piston Kit 01.1411.B

    PROX Piston Kit 01.1411.B

    PROX

    $195.95
    When your engine's pistons are worn or damaged, you're losing compression, efficiency, and power—and risking catastrophic failure. The PROX Piston Kit 01.1411.B delivers OEM-equivalent performance...
    09030823
    SKU:
    09030823
    Availability:
    Ships Same Business Day
    Weight:
    0.79 LBS
    ENGINE TYPE:
    4-STROKE
    PISTON SIZE METRIC:
    STANDARD SIZE B
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    TOP END
    BORE SIZE METRIC:
    95.97 MM
    RIDING STYLE:
    OFF-ROAD
    COMPRESSION RATIO IMPERIAL:
    12.0:1
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $195.95
    Subtotal:
  • PROX Piston Kit 01.2114.C

    PROX Piston Kit 01.2114.C

    PROX

    $99.95
    When your engine's pistons wear beyond safe operating limits, you're facing compromised compression, oil blow-by, and potential catastrophic failure. The PROX Piston Kit 01.2114.C delivers...
    09030828
    SKU:
    09030828
    Availability:
    Ships Same Business Day
    Weight:
    0.32 LBS
    BORE SIZE METRIC:
    47.50 MM
    PISTON SIZE METRIC:
    STANDARD SIZE C
    PRODUCT NAME:
    PISTON KIT
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    EACH
    $99.95
    Qty in Cart: 0
    Quantity:
    Price:
    $99.95
    Subtotal:
  • PROX Piston Kit 01.2429.C

    PROX Piston Kit 01.2429.C

    PROX

    $195.95
    Your engine's heart demands precision engineering and materials that can withstand extreme combustion pressures cycle after cycle. The PROX Piston Kit 01.2429.C delivers exactly that—OEM-equivalent...
    09030829
    SKU:
    09030829
    Availability:
    Ships Same Business Day
    Weight:
    0.88 LBS
    COMPRESSION RATIO IMPERIAL:
    12.5:1
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    95.00 MM
    PISTON SIZE METRIC:
    STANDARD SIZE C
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    TYPE:
    TOP END
    UNITS:
    EACH
    $195.95
    Qty in Cart: 0
    Quantity:
    Price:
    $195.95
    Subtotal:
  • PROX Piston Kit 01.4121.C

    PROX Piston Kit 01.4121.C

    PROX

    $89.95
    A piston kit is the heart of engine reliability and performance—worn or damaged pistons directly compromise compression, power delivery, and engine longevity. The PROX Piston Kit 01.4121.C delivers...
    09030830
    SKU:
    09030830
    Availability:
    Ships Same Business Day
    Weight:
    0.33 LBS
    BORE SIZE METRIC:
    48.50 MM
    RIDING STYLE:
    OFF-ROAD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON SIZE METRIC:
    STANDARD SIZE C
    UNITS:
    EACH
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    TOP END
    Qty in Cart: 0
    Quantity:
    Price:
    $89.95
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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