Select Your Ride

1
2
3

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 66mm 10:1 Compression Honda XR200R 1986-1991 PK1121

    Wiseco Piston Kit 66mm 10:1 Compression Honda XR200R 1986-1991 PK1121

    WISECO

    $204.95
    If you're rebuilding your Honda XR200R's top end, piston selection directly impacts throttle response, reliability, and how much power you can extract from the motor. The Wiseco PK1121 delivers the precision engineering and durability expected from a...
    09030211
    SKU:
    09030211
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    PISTON DIAMETER METRIC:
    65.95 MM
    PRODUCT NAME:
    REBUILD KIT
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    COMPRESSION RATIO IMPERIAL:
    10.0:1
    DISPLACEMENT:
    192 CC
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    57.80 MM
    BORE - OVERSIZE:
    +0,50 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    66.00 MM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    $204.95
    Qty in Cart: 0
    Quantity:
    Price:
    $204.95
    Subtotal:
  • Wiseco Piston Kit with Gaskets for Suzuki RM85 2002-2020 PK1209

    Wiseco Piston Kit with Gaskets for Suzuki RM85 2002-2020 PK1209

    WISECO

    $186.95
    When your RM85's piston shows signs of wear—loss of compression, increased blow-by, or sluggish throttle response—you need a direct replacement that restores factory performance without compromise. The Wiseco PK1209 delivers that reliability with forged...
    09030214
    SKU:
    09030214
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    DISPLACEMENT:
    84.7 CC
    BORE - OVERSIZE METRIC:
    +2.00 MM
    MODEL:
    PRO-LITE
    PISTON DIAMETER METRIC:
    49.95 MM
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    BORE - OVERSIZE:
    +2,00 MM
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    KIT
    BORE SIZE METRIC:
    50.00 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    PISTON SIZE METRIC:
    +2.00 MM
    STROKE LENGTH METRIC:
    46.80 MM
    $186.95
    Qty in Cart: 0
    Quantity:
    Price:
    $186.95
    Subtotal:
  • Wiseco YZ125 1998-2000 56mm Piston Kit with Gaskets PK1176

    Wiseco YZ125 1998-2000 56mm Piston Kit with Gaskets PK1176

    WISECO

    $234.95
    When your YZ125's top end starts showing wear, you need a piston kit that delivers consistent power without compromise. The Wiseco PK1176 combines aerospace-grade forged aluminum with precision CNC machining to restore—or exceed—your engine's original...
    09030215
    SKU:
    09030215
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    PISTON DIAMETER METRIC:
    55.95 MM
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE:
    +2,00 MM
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    54.50 MM
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +2.00 MM
    MODEL:
    PRO-LITE
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    BORE SIZE METRIC:
    56.00 MM
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    PISTON SIZE METRIC:
    +2.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $234.95
    Subtotal:
  • Wiseco Honda CR125R 2001-2002 Piston Kit with Gaskets PK1264

    Wiseco Honda CR125R 2001-2002 Piston Kit with Gaskets PK1264

    WISECO

    $244.95
    Your CR125R's top-end demands precision engineering to handle competitive racing and aggressive trail conditions. The Wiseco PK1264 delivers aerospace-grade forged aluminum construction with CNC-machined Pro-Lite Technology, ensuring reliable horsepower...
    09030217
    SKU:
    09030217
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    PISTON DIAMETER METRIC:
    55.95 MM
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    54.50 MM
    BORE - OVERSIZE:
    +2,00 MM
    BORE SIZE METRIC:
    56.00 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +2.00 MM
    DISPLACEMENT:
    125 CC
    MODEL:
    PRO-LITE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    PISTON SIZE METRIC:
    +2.00 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    $244.95
    Qty in Cart: 0
    Quantity:
    Price:
    $244.95
    Subtotal:
  • Wiseco Piston Kit with Gaskets for Honda CR250R 1997-2001 PK1169

    Wiseco Piston Kit with Gaskets for Honda CR250R 1997-2001 PK1169

    WISECO

    $259.95
    When your CR250R's top-end starts showing wear, you're losing combustion efficiency and horsepower with every ride. The Wiseco PK1169 restores your engine to factory precision—and then some—with aerospace-grade forged aluminum and CNC-machined Pro-Lite...
    09030219
    SKU:
    09030219
    Availability:
    Ships Same Business Day
    Weight:
    1.45 LBS
    MODEL:
    PRO-LITE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    72.00 MM
    BORE SIZE METRIC:
    67.00 MM
    ENGINE TYPE:
    2-STROKE
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE:
    +0,60 MM
    BORE - OVERSIZE METRIC:
    +0.60 MM
    DISPLACEMENT:
    249 CC
    PISTON DIAMETER METRIC:
    66.96 MM
    PRODUCT NAME:
    REBUILD KIT
    $259.95
    Qty in Cart: 0
    Quantity:
    Price:
    $259.95
    Subtotal:
  • Wiseco Piston Kit for Kawasaki KX80 1991-1997 49mm PK1302

    Wiseco Piston Kit for Kawasaki KX80 1991-1997 49mm PK1302

    WISECO

    $192.95
    When your KX80's top-end reaches the end of its service life, a quality piston kit is the foundation of a reliable rebuild. The Wiseco PK1302 delivers OEM-equivalent fitment with aerospace-grade materials engineered to handle sustained high-RPM...
    09030222
    SKU:
    09030222
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE - OVERSIZE:
    +1,00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    DISPLACEMENT:
    82 CC
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    45.80 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    49.00 MM
    MODEL:
    PRO-LITE
    PISTON DIAMETER METRIC:
    48.95 MM
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    $192.95
    Qty in Cart: 0
    Quantity:
    Price:
    $192.95
    Subtotal:
  • Wiseco Piston Kit 48.50mm for Kawasaki KX80 1991-1997 PK1301

    Wiseco Piston Kit 48.50mm for Kawasaki KX80 1991-1997 PK1301

    WISECO

    $179.95
    Your KX80's performance ceiling is limited by factory piston specs—worn or inadequate pistons rob horsepower, increase blow-by, and accelerate engine wear. The Wiseco PK1301 delivers OEM-plus reliability with measurable gains in throttle response and...
    09030243
    SKU:
    09030243
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    BORE SIZE METRIC:
    48.50 MM
    PISTON DIAMETER METRIC:
    48.45 MM
    RIDING STYLE:
    OFF-ROAD
    BORE - OVERSIZE METRIC:
    +0.50 MM
    MODEL:
    PRO-LITE
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    BORE - OVERSIZE:
    +0,50 MM
    DISPLACEMENT:
    82 CC
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    45.80 MM
    UNITS:
    KIT
    $179.95
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • Wiseco Piston Kit with Gaskets for 1998-1999 Honda CR125R PK1253

    Wiseco Piston Kit with Gaskets for 1998-1999 Honda CR125R PK1253

    WISECO

    $238.95
    A worn or damaged piston directly kills your CR125R's power delivery and reliability. The Wiseco PK1253 restores—and exceeds—factory performance with precision-forged construction and OEM-spec fitment for 1998-1999 models. This complete overhaul kit...
    09030293
    SKU:
    09030293
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    125 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    BORE SIZE METRIC:
    54.00 MM
    MODEL:
    PRO-LITE
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    54.50 MM
    PISTON DIAMETER METRIC:
    53.95 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    $238.95
    Qty in Cart: 0
    Quantity:
    Price:
    $238.95
    Subtotal:
  • Wiseco Honda CR125R 1992-1997 Piston Kit with Gaskets PK1164

    Wiseco Honda CR125R 1992-1997 Piston Kit with Gaskets PK1164

    WISECO

    $238.95
    The stock piston on your CR125R is a compromise between cost and performance—this Wiseco kit eliminates that tradeoff. Whether you're chasing lap times at the track or pushing hard on the trails, a properly engineered piston kit directly translates to...
    09030295
    SKU:
    09030295
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE SIZE METRIC:
    54.00 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    DISPLACEMENT:
    125 CC
    MODEL:
    PRO-LITE
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON DIAMETER METRIC:
    53.95 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    54.50 MM
    $238.95
    Qty in Cart: 0
    Quantity:
    Price:
    $238.95
    Subtotal:
  • Wiseco Piston Kit for Suzuki RM250 2003-2008 PK1211

    Wiseco Piston Kit for Suzuki RM250 2003-2008 PK1211

    WISECO

    $282.95
    A 2-stroke engine rebuild demands precision components that can handle extreme combustion temperatures and deliver consistent power cycle after cycle. The Wiseco PK1211 is engineered specifically for Suzuki RM250 models (2003-2008), giving you the exact...
    09030296
    SKU:
    09030296
    Availability:
    Ships Same Business Day
    Weight:
    1.45 LBS
    DISPLACEMENT:
    249 CC
    PISTON DIAMETER METRIC:
    66.34 MM
    PRODUCT NAME:
    REBUILD KIT
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    72.00 MM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    SKIRT COATING:
    ARMORGLIDE®
    BORE SIZE METRIC:
    66.40 MM
    MODEL:
    PRO-LITE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    $282.95
    Qty in Cart: 0
    Quantity:
    Price:
    $282.95
    Subtotal:
  • Wiseco Piston Kit 54mm for 2002 Yamaha YZ125 PK1191

    Wiseco Piston Kit 54mm for 2002 Yamaha YZ125 PK1191

    WISECO

    $224.95
    A worn or damaged piston directly kills your YZ125's power delivery and throttle response—and rebuilding with OEM parts leaves performance on the table. The Wiseco PK1191 gives you a complete, ready-to-install solution engineered specifically for your...
    09030297
    SKU:
    09030297
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    54.50 MM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    53.95 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    DISPLACEMENT:
    125 CC
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    BORE SIZE METRIC:
    54.00 MM
    MODEL:
    PRO-LITE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    Qty in Cart: 0
    Quantity:
    Price:
    $224.95
    Subtotal:
  • Wiseco Honda CR80R 1992-2002 Piston Kit with Gaskets PK1269

    Wiseco Honda CR80R 1992-2002 Piston Kit with Gaskets PK1269

    WISECO

    $192.95
    If you're running a Honda CR80R and need reliable top-end performance, a quality piston kit is non-negotiable. The Wiseco PK1269 delivers the precision engineering and durability required for consistent power delivery, whether you're prepping for...
    09030298
    SKU:
    09030298
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    47.00 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    DISPLACEMENT:
    82.9 CC
    BORE - OVERSIZE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    46.95 MM
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    MODEL:
    PRO-LITE
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    47.80 MM
    UNITS:
    KIT
    $192.95
    Qty in Cart: 0
    Quantity:
    Price:
    $192.95
    Subtotal:
  • Wiseco Suzuki RM125 2000-2003 Piston Kit with Gaskets PK1180

    Wiseco Suzuki RM125 2000-2003 Piston Kit with Gaskets PK1180

    WISECO

    $219.95
    When your Suzuki RM125 demands a complete top-end rebuild, you need a piston kit engineered for the demands of competitive 2-stroke racing. The Wiseco PK1180 delivers aerospace-grade durability and precision engineering to restore—or exceed—your engine's...
    09030300
    SKU:
    09030300
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE SIZE METRIC:
    54.00 MM
    DISPLACEMENT:
    124.8 CC
    MODEL:
    PRO-LITE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    53.95 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    54.50 MM
    $219.95
    Qty in Cart: 0
    Quantity:
    Price:
    $219.95
    Subtotal:
  • Wiseco 54mm Piston Kit for 2001-2002 Honda CR125R PK1261

    Wiseco 54mm Piston Kit for 2001-2002 Honda CR125R PK1261

    WISECO

    $233.95
    When your CR125R's top-end is worn, combustion efficiency drops and horsepower bleeds away. The Wiseco PK1261 restores your engine to peak performance with a precision-engineered piston kit that handles the extreme temperatures and pressures of 2-stroke...
    09030301
    SKU:
    09030301
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    MODEL:
    PRO-LITE
    PISTON DIAMETER METRIC:
    53.95 MM
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    BORE SIZE METRIC:
    54.00 MM
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    STROKE LENGTH METRIC:
    54.50 MM
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    125 CC
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    $233.95
    Qty in Cart: 0
    Quantity:
    Price:
    $233.95
    Subtotal:
  • Wiseco Piston Kit with Gaskets for 2003-2007 Honda CR85R PK1214

    Wiseco Piston Kit with Gaskets for 2003-2007 Honda CR85R PK1214

    WISECO

    $181.95
    When a piston fails or wear becomes noticeable, engine performance drops significantly—and rebuilding with OEM parts often leaves performance on the table. The Wiseco PK1214 delivers a complete, precision-engineered solution for your 2003-2007 Honda...
    09030302
    SKU:
    09030302
    Availability:
    Ships Same Business Day
    Weight:
    0.72 LBS
    MODEL:
    PRO-LITE
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    47.80 MM
    TYPE:
    TOP END
    UNITS:
    KIT
    BORE SIZE METRIC:
    47.50 MM
    DISPLACEMENT:
    84.7 CC
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    BORE - OVERSIZE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    47.45 MM
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE METRIC:
    STANDARD
    PRODUCT NAME:
    REBUILD KIT
    $181.95
    Qty in Cart: 0
    Quantity:
    Price:
    $181.95
    Subtotal:
  • Wiseco Piston Kit with Gaskets for Suzuki RM85 2002-2023 PK1206

    Wiseco Piston Kit with Gaskets for Suzuki RM85 2002-2023 PK1206

    WISECO

    $186.95
    If you're rebuilding the top end of your RM85, compromising on piston quality means sacrificing reliability and peak performance when you need it most. The Wiseco PK1206 delivers the precision engineering and durable construction that serious racers...
    09030303
    SKU:
    09030303
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    BORE SIZE METRIC:
    48.00 MM
    MODEL:
    PRO-LITE
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    DISPLACEMENT:
    84.7 CC
    PISTON DIAMETER METRIC:
    47.95 MM
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    46.80 MM
    $186.95
    Qty in Cart: 0
    Quantity:
    Price:
    $186.95
    Subtotal:
  • Wiseco Piston Standard Kawasaki KX 80 Big Wheel 1988-1997 539M04800

    Wiseco Piston Standard Kawasaki KX 80 Big Wheel 1988-1997 539M04800

    WISECO

    $134.95
    When your KX80's piston shows signs of wear—loss of compression, increased blowby, or sluggish throttle response—you're losing power and risking catastrophic engine damage. The Wiseco 539M04800 restores full performance with OEM-equivalent fitment and...
    539M04800
    SKU:
    539M04800
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE SIZE METRIC:
    48.00 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    DISPLACEMENT:
    82 CC
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    STROKE LENGTH:
    45,80 MM
    STROKE LENGTH METRIC:
    45.80 MM
    $134.95
    Qty in Cart: 0
    Quantity:
    Price:
    $134.95
    Subtotal:
  • Wiseco Piston Standard Kawasaki KX 125 1986 540M05600

    Wiseco Piston Standard Kawasaki KX 125 1986 540M05600

    WISECO

    $154.95
    When your KX 125 engine demands a rebuild, compromising on piston quality means risking power loss and premature wear. The Wiseco 540M05600 delivers the precision fit and lightweight strength that 2-stroke engines require to perform consistently at high...
    540M05600
    SKU:
    540M05600
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    DISPLACEMENT:
    124 CC
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH:
    50,6 MM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    56.00 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    50.60 MM
    UNITS:
    EACH
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • Wiseco Piston 49mm Oversize for Suzuki RM 80 1986-1987 542M04900

    Wiseco Piston 49mm Oversize for Suzuki RM 80 1986-1987 542M04900

    WISECO

    $144.95
    If you're running a Suzuki RM80 and demand more power and reliability from your engine, a quality piston upgrade is non-negotiable. The Wiseco 542M04900 delivers the precision bore diameter and forged aluminum construction needed to safely handle...
    542M04900
    SKU:
    542M04900
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE:
    +1,50 MM
    BORE SIZE METRIC:
    49.00 MM
    RIDING STYLE:
    OFF-ROAD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    46.80 MM
    UNITS:
    EACH
    DISPLACEMENT:
    82 CC
    STROKE LENGTH:
    46,80 MM
    BORE - OVERSIZE METRIC:
    +1.50 MM
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    $144.95
    Qty in Cart: 0
    Quantity:
    Price:
    $144.95
    Subtotal:
  • Wiseco Piston 2.00 mm Oversize Suzuki RM 80 1977-1981 542M04950

    Wiseco Piston 2.00 mm Oversize Suzuki RM 80 1977-1981 542M04950

    WISECO

    $144.95
    When a 2-stroke RM 80 engine reaches its limits, a quality piston replacement is non-negotiable—and the Wiseco 542M04950 delivers the precision engineering your rebuild demands. This forged aluminum piston maintains exact bore tolerances while reducing...
    542M04950
    SKU:
    542M04950
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE - OVERSIZE:
    +2,00 MM
    PRODUCT NAME:
    PISTON
    STROKE LENGTH METRIC:
    46.80 MM
    BORE SIZE METRIC:
    49.50 MM
    PISTON MATERIAL:
    FORGED
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH:
    46,80 MM
    BORE - OVERSIZE METRIC:
    +2.00 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    DISPLACEMENT:
    82 CC
    $144.95
    Qty in Cart: 0
    Quantity:
    Price:
    $144.95
    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

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER