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Dirt Bike Piston and Ring Kits

Dirt Bike Piston and Ring Kits

Dirt Bike Piston and Ring Kits

Dirt Bike Piston & Ring Kits for Yamaha YZ85, WR250 & YZ250 at JJ Motorsports

Rebuild your dirt bike's top end for maximum power and reliability with premium piston and ring kits from JJ Motorsports, forged from high-strength aluminum for superior heat resistance, lightweight performance, and precise fit in motocross, enduro, and trail riding. Our selection includes complete kits with pistons, high-performance rings, wrist pins, circlips, top-end bearings, and gaskets designed for enhanced combustion efficiency, reduced blow-by, and longer engine life under high-RPM abuse. Compatible with popular models like Yamaha YZ85 (2002-2018), WR250, and YZ250, these Wiseco-engineered components feature CNC-machined crowns for optimal cam shape, ArmorGlide skirt coatings for low friction, and 4032 alloy construction for durability in dusty, aggressive conditions. Whether you're refreshing a youth 85cc 2-stroke or upgrading a 250cc big bore, these kits ensure crisp throttle response, better sealing, and race-ready power without the need for custom boring—perfect for DIY rebuilds or pro-level maintenance.

Shop trusted brands like Wiseco for race-proven quality. Explore related categories such as dirt bike engine for cylinders and valves or dirt bike air and fuel for carburetors and jets.

Top Dirt Bike Piston & Ring Kits

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Wiseco Piston Kit 54mm for Yamaha YZ125 2005-2021 PK1571

    Wiseco Piston Kit 54mm for Yamaha YZ125 2005-2021 PK1571

    WISECO

    $212.95
    When you're pushing a YZ125 to its limits on the track or trail, your piston kit needs to handle extreme combustion pressures and temperature swings without compromise. Wiseco's forged-from-bar-stock construction delivers the strength and thermal...
    09030724
    SKU:
    09030724
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE SIZE METRIC:
    54.00 MM
    DISPLACEMENT:
    125 CC
    PRODUCT NAME:
    REBUILD KIT
    PISTON DIAMETER METRIC:
    53.95 MM
    STROKE LENGTH METRIC:
    54.50 MM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    $212.95
    Qty in Cart: 0
    Quantity:
    Price:
    $212.95
    Subtotal:
  • Wiseco Piston Kit with Gaskets 56mm Honda CR125R 2000-2002 PK1580

    Wiseco Piston Kit with Gaskets 56mm Honda CR125R 2000-2002 PK1580

    WISECO

    $259.95
    A top-end rebuild demands precision components that can withstand sustained high-RPM operation. The Wiseco Piston Kit delivers a complete solution with forged pistons and all necessary gaskets, eliminating the guesswork and multiple purchases required...
    09030731
    SKU:
    09030731
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    BORE - OVERSIZE:
    +2,00 MM
    MODEL:
    RACER'S CHOICE
    TYPE:
    TOP END
    UNITS:
    EACH
    BORE - OVERSIZE METRIC:
    +2.00 MM
    DISPLACEMENT:
    134 CC
    PISTON MATERIAL:
    ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    54.50 MM
    BORE SIZE METRIC:
    56.00 MM
    COOLING SYSTEM:
    AIR COOLED
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    REBUILD KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $259.95
    Subtotal:
  • Wiseco Honda CR125R 2003 Piston Kit with Gaskets PK1581

    Wiseco Honda CR125R 2003 Piston Kit with Gaskets PK1581

    WISECO

    $244.95
    A top-end rebuild demands precision components that can handle the demands of high-RPM racing. The Wiseco Honda CR125R piston kit delivers the durability and compression you need to maximize power output while maintaining long-term reliability. Whether...
    09030732
    SKU:
    09030732
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    54.50 MM
    BORE SIZE METRIC:
    54.00 MM
    PISTON MATERIAL:
    ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    BORE - OVERSIZE:
    STANDARD
    MODEL:
    RACER'S CHOICE
    PISTON MATERIAL:
    FORGED
    UNITS:
    EACH
    BORE - OVERSIZE METRIC:
    STANDARD
    COOLING SYSTEM:
    AIR COOLED
    DISPLACEMENT:
    125 CC
    $244.95
    Qty in Cart: 0
    Quantity:
    Price:
    $244.95
    Subtotal:
  • Wiseco Honda CR125R 2003 Piston Kit with Gaskets PK1582

    Wiseco Honda CR125R 2003 Piston Kit with Gaskets PK1582

    WISECO

    $264.95
    If you're rebuilding a 2003 Honda CR125R or planning an overbore, the Wiseco PK1582 Piston Kit delivers the durability and performance you need in one complete package. This forged high-silicon aluminum assembly eliminates guesswork with everything...
    09030733
    SKU:
    09030733
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    DISPLACEMENT:
    134 CC
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    54.50 MM
    COOLING SYSTEM:
    AIR COOLED
    BORE - OVERSIZE:
    +2,00 MM
    BORE SIZE METRIC:
    56.00 MM
    MODEL:
    RACER'S CHOICE
    PISTON MATERIAL:
    FORGED
    UNITS:
    EACH
    BORE - OVERSIZE METRIC:
    +2.00 MM
    PISTON MATERIAL:
    ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    Qty in Cart: 0
    Quantity:
    Price:
    $264.95
    Subtotal:
  • Wiseco Piston Kit for Suzuki DR-Z400 2000-2004 PK1659

    Wiseco Piston Kit for Suzuki DR-Z400 2000-2004 PK1659

    WISECO

    $309.95
    When you're rebuilding a high-revving 2-stroke engine, component quality directly impacts reliability and peak performance. The Wiseco Piston Kit for your DR-Z400 delivers forged-piston strength with a complete gasket and ring set, eliminating guesswork...
    09030734
    SKU:
    09030734
    Availability:
    Ships Same Business Day
    Weight:
    1.70 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    FORGED SERIES
    RIDING STYLE:
    STREET
    SKIRT COATING:
    ARMORGLIDE®
    BORE SIZE METRIC:
    90.00 MM
    COMPRESSION RATIO IMPERIAL:
    12.2:1
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    62.60 MM
    DISPLACEMENT:
    398 CC
    ENGINE TYPE:
    4-STROKE
    PISTON DIAMETER METRIC:
    89.92 MM
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    $309.95
    Qty in Cart: 0
    Quantity:
    Price:
    $309.95
    Subtotal:
  • Wiseco Piston Kit 90mm 13.5:1 for Suzuki DR-Z400 2000-2018 PK1661

    Wiseco Piston Kit 90mm 13.5:1 for Suzuki DR-Z400 2000-2018 PK1661

    WISECO

    $294.95
    The Wiseco Piston Kit PK1661 delivers the strength and thermal stability your DR-Z400 demands when you're pushing peak RPMs and sustained high-load conditions. High-silicone forged construction minimizes expansion under heat, preserving ring seal...
    09030736
    SKU:
    09030736
    Availability:
    Ships Same Business Day
    Weight:
    1.60 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    13.5:1
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    KIT
    BORE SIZE METRIC:
    90.00 MM
    MODEL:
    FORGED SERIES
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    62.60 MM
    DISPLACEMENT:
    398 CC
    ENGINE TYPE:
    4-STROKE
    PISTON DIAMETER METRIC:
    89.92 MM
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    $294.95
    Qty in Cart: 0
    Quantity:
    Price:
    $294.95
    Subtotal:
  • Wiseco Piston Kit 54.5mm 11:1 Compression Yamaha TTR125 2000-2021 PK1683

    Wiseco Piston Kit 54.5mm 11:1 Compression Yamaha TTR125 2000-2021 PK1683

    WISECO

    $197.95
    If you're rebuilding your TTR125's top end, a quality piston kit is non-negotiable—it's the foundation of engine reliability and power output. The Wiseco PK1683 delivers forged-piston durability with a complete gasket and ring set, eliminating the...
    09030740
    SKU:
    09030740
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE SIZE METRIC:
    54.50 MM
    DISPLACEMENT:
    123.7 CC
    PISTON DIAMETER METRIC:
    54.45 MM
    TYPE:
    TOP END
    BORE - OVERSIZE METRIC:
    +0.50 MM
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE:
    +0,50 MM
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    54.00 MM
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    REBUILD KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $197.95
    Subtotal:
  • Wiseco Piston Kit 55mm Bore Yamaha TT-R125 2000-2004 PK1684

    Wiseco Piston Kit 55mm Bore Yamaha TT-R125 2000-2004 PK1684

    WISECO

    $189.95
    When your TT-R125's original pistons wear out, a quality rebuild kit is the difference between a restored engine and a costly failure. Wiseco's forged piston kit delivers the durability and thermal stability you need for consistent performance, whether...
    09030741
    SKU:
    09030741
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    BORE - OVERSIZE:
    +1,00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE SIZE METRIC:
    55.00 MM
    MODEL:
    FORGED SERIES
    STROKE LENGTH METRIC:
    54.00 MM
    DISPLACEMENT:
    123.7 CC
    PISTON DIAMETER METRIC:
    54.95 MM
    PRODUCT NAME:
    REBUILD KIT
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    TYPE:
    TOP END
    $189.95
    Qty in Cart: 0
    Quantity:
    Price:
    $189.95
    Subtotal:
  • Wiseco Yamaha TTR125 2000-2021 Piston Kit with Gaskets PK1682

    Wiseco Yamaha TTR125 2000-2021 Piston Kit with Gaskets PK1682

    WISECO

    $197.95
    If you're rebuilding your TTR125 top-end, a quality piston kit directly impacts engine reliability, power delivery, and longevity. Wiseco's high-silicone forged pistons are engineered to handle the thermal stress and detonation forces of performance...
    09030742
    SKU:
    09030742
    Availability:
    Ships Same Business Day
    Weight:
    0.77 LBS
    BORE SIZE METRIC:
    54.00 MM
    DISPLACEMENT:
    123.7 CC
    PRODUCT NAME:
    REBUILD KIT
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    53.95 MM
    STROKE LENGTH METRIC:
    54.00 MM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    $197.95
    Qty in Cart: 0
    Quantity:
    Price:
    $197.95
    Subtotal:
  • Wiseco Piston Kit Honda CRF250R 2004-2007 4829M07800

    Wiseco Piston Kit Honda CRF250R 2004-2007 4829M07800

    WISECO

    $210.95
    The stock piston in your CRF250R is a compromise between cost and performance—it's time to upgrade. A quality aftermarket piston like this Wiseco kit will sharpen throttle response, reduce combustion losses, and deliver measurable gains in power output...
    09100333
    SKU:
    09100333
    Availability:
    Ships Same Business Day
    Weight:
    0.53 LBS
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    12.9:1
    PRODUCT NAME:
    PISTON
    SKIRT COATING:
    ARMORGLIDE®
    STROKE LENGTH METRIC:
    52.20 MM
    DISPLACEMENT:
    249 CC
    BORE SIZE METRIC:
    78.00 MM
    PISTON MATERIAL:
    FORGED
    $210.95
    Qty in Cart: 0
    Quantity:
    Price:
    $210.95
    Subtotal:
  • Wiseco Piston Kit Standard Bore 100mm 8.7:1 Compression Honda XR650L 1993-2020 4562M10000

    Wiseco Piston Kit Standard Bore 100mm 8.7:1 Compression Honda XR650L 1993-2020 4562M10000

    WISECO

    $248.95
    If you're running an XR650L that's seen serious miles or you're prepping for aggressive trail and off-road duty, a quality piston kit is essential to maintain compression, seal integrity, and reliability. Wiseco pistons are purpose-built for Honda's...
    09100337
    SKU:
    09100337
    Availability:
    Ships Same Business Day
    Weight:
    1.38 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PRODUCT NAME:
    PISTON
    BORE SIZE METRIC:
    100.00 MM
    DISPLACEMENT:
    650 CC
    PISTON MATERIAL:
    FORGED
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    COMPRESSION RATIO IMPERIAL:
    8.7:1
    STROKE LENGTH METRIC:
    82.00 MM
    $248.95
    Qty in Cart: 0
    Quantity:
    Price:
    $248.95
    Subtotal:
  • Wiseco Piston Kit for Kawasaki KX250 2005-2007 PK1379

    Wiseco Piston Kit for Kawasaki KX250 2005-2007 PK1379

    WISECO

    $285.95
    A worn or damaged piston directly limits your KX250's throttle response and peak power output. The Wiseco PK1379 kit restores—and exceeds—OEM performance with a high-silicone forged aluminum construction that handles sustained high-RPM abuse without...
    09030519
    SKU:
    09030519
    Availability:
    Ships Same Business Day
    Weight:
    1.42 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    66.40 MM
    DISPLACEMENT:
    249.3 CC
    PISTON DIAMETER METRIC:
    66.36 MM
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    KIT
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    72.00 MM
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    Qty in Cart: 0
    Quantity:
    Price:
    $285.95
    Subtotal:
  • Wiseco Piston Kit Honda CR250R 1997-2001 702M06850

    Wiseco Piston Kit Honda CR250R 1997-2001 702M06850

    WISECO

    $224.95
    A worn or damaged piston directly compromises combustion efficiency, throttle response, and overall engine reliability—especially critical on a two-stroke like the CR250R where precision tolerances are non-negotiable. The Wiseco Piston Kit delivers...
    09101232
    SKU:
    09101232
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    UNITS:
    EACH
    BORE SIZE METRIC:
    68.50 MM
    DISPLACEMENT:
    249 CC
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    BORE - OVERSIZE:
    +2,10 MM
    BORE - OVERSIZE METRIC:
    +2.10 MM
    PISTON MATERIAL:
    FORGED
    RIDING STYLE:
    OFF-ROAD
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    STROKE LENGTH METRIC:
    72.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $224.95
    Subtotal:
  • Wiseco 450 EXC 2003-2007 Piston Kit PK1445

    Wiseco 450 EXC 2003-2007 Piston Kit PK1445

    WISECO

    $358.95
    Two-stroke engines demand precision components that can handle extreme combustion pressures and rapid thermal cycling. The Wiseco 450 EXC Piston Kit delivers the strength and dimensional stability your engine needs to perform at the limit—whether you're...
    09030690
    SKU:
    09030690
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    72.00 MM
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    ENGINE TYPE:
    4-STROKE
    PISTON DIAMETER METRIC:
    88.92 MM
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    448 CC
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    KIT
    BORE SIZE METRIC:
    89.00 MM
    MODEL:
    FORGED SERIES
    $358.95
    Qty in Cart: 0
    Quantity:
    Price:
    $358.95
    Subtotal:
  • Wiseco Piston Kit Standard 66.40mm Honda CR250R 1997-2001 768M06640

    Wiseco Piston Kit Standard 66.40mm Honda CR250R 1997-2001 768M06640

    WISECO

    $199.95
    The Wiseco Piston Kit delivers the strength and precision required for consistent CR250R performance across 1997-2001 model years. Whether you're pushing lap times or maintaining your two-stroke's reliability, this forged aluminum piston is engineered to...
    09101236
    SKU:
    09101236
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    DISPLACEMENT:
    249 CC
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    STROKE LENGTH METRIC:
    72.00 MM
    BORE SIZE METRIC:
    66.40 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • Wiseco KX125 2001-2002 Piston Kit with Gaskets PK1502

    Wiseco KX125 2001-2002 Piston Kit with Gaskets PK1502

    WISECO

    $219.95
    When you're rebuilding a KX125 top end, cutting corners on piston quality will cost you—either in lost performance or catastrophic engine failure. The Wiseco KX125 Piston Kit delivers the precision and durability needed to safely run your 2-stroke at the...
    09030697
    SKU:
    09030697
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    54.50 MM
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE - OVERSIZE:
    STANDARD
    PISTON DIAMETER METRIC:
    53.95 MM
    SKIRT COATING:
    NON-COATED
    BORE SIZE METRIC:
    54.00 MM
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    $219.95
    Qty in Cart: 0
    Quantity:
    Price:
    $219.95
    Subtotal:
  • Wiseco Piston Kit Kawasaki KX85 2001-2008 782M04950

    Wiseco Piston Kit Kawasaki KX85 2001-2008 782M04950

    WISECO

    $143.95
    A worn or stock piston can limit your KX85's potential—costing you throttle response, reliability, and track performance. Wiseco's precision-engineered piston kit restores the efficiency your engine demands, with lightweight construction and superior...
    09101238
    SKU:
    09101238
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    BORE - OVERSIZE:
    +1,00 MM
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    BORE - OVERSIZE METRIC:
    +1.00 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    STROKE LENGTH METRIC:
    45.80 MM
    BORE SIZE METRIC:
    49.50 MM
    DISPLACEMENT:
    84,9 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    $143.95
    Qty in Cart: 0
    Quantity:
    Price:
    $143.95
    Subtotal:
  • Wiseco Piston Kit 89mm Honda CR500R 1984-2001 871M08900

    Wiseco Piston Kit 89mm Honda CR500R 1984-2001 871M08900

    WISECO

    $238.95
    The Wiseco 89mm piston kit is engineered for the demanding demands of CR500R racing and high-rpm recreational riding. This precision-machined piston maintains stock bore diameter while delivering the durability and thermal stability required for...
    09102022
    SKU:
    09102022
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    BORE - OVERSIZE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    89.00 MM
    DISPLACEMENT:
    472 CC
    STROKE LENGTH METRIC:
    76.00 MM
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    EACH
    $238.95
    Qty in Cart: 0
    Quantity:
    Price:
    $238.95
    Subtotal:
  • Wiseco Suzuki RM125 2004-2007 Piston Kit with Gaskets PK1377

    Wiseco Suzuki RM125 2004-2007 Piston Kit with Gaskets PK1377

    WISECO

    $234.95
    The Wiseco Suzuki RM125 piston kit is engineered for riders who demand reliable top-end performance in competitive or high-mileage conditions. High-silicone forged aluminum construction delivers the strength and thermal stability necessary for sustained...
    09030531
    SKU:
    09030531
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    PISTON DIAMETER METRIC:
    53.95 MM
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    54.50 MM
    BORE SIZE METRIC:
    54.00 MM
    DISPLACEMENT:
    125 CC
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    TYPE:
    TOP END
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    PRODUCT NAME:
    REBUILD KIT
    $234.95
    Qty in Cart: 0
    Quantity:
    Price:
    $234.95
    Subtotal:
  • Wiseco 72mm Piston Kit for 2005-2007 KTM 300 EXC PK1409

    Wiseco 72mm Piston Kit for 2005-2007 KTM 300 EXC PK1409

    WISECO

    $297.95
    Your KTM 300 EXC's top-end demands precision engineering to handle the demands of 2-stroke racing and trail riding. The Wiseco 72mm Piston Kit delivers exactly that—a complete rebuild solution engineered to withstand sustained high temperatures while...
    09030534
    SKU:
    09030534
    Availability:
    Ships Same Business Day
    Weight:
    1.45 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PRODUCT NAME:
    REBUILD KIT
    SKIRT COATING:
    ARMORGLIDE®
    BORE SIZE METRIC:
    72.00 MM
    RIDING STYLE:
    STREET
    TYPE:
    TOP END
    DISPLACEMENT:
    297 CC
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    73.00 MM
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    PISTON DIAMETER METRIC:
    71.94 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $297.95
    Qty in Cart: 0
    Quantity:
    Price:
    $297.95
    Subtotal:
  • Total: items /

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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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