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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 Yamaha MT-09 2014-2025 Standard 452M07000

    Wiseco Piston Yamaha MT-09 2014-2025 Standard 452M07000

    WISECO

    $199.95
    If you're running a Yamaha MT-09 and pushing hard on the track or street, a worn piston directly kills your compression, throttle response, and fuel efficiency. The Wiseco 452M07000 restores full performance with CNC-machined precision and forged...
    452M07000
    SKU:
    452M07000
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    246 CC
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    BORE SIZE METRIC:
    70.00 MM
    PISTON DIAMETER METRIC:
    69.95 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    64.00 MM
    UNITS:
    KIT
    $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • Wiseco Piston Kit Yamaha YZ250 1980-1982 1mm Oversize 452M07100

    Wiseco Piston Kit Yamaha YZ250 1980-1982 1mm Oversize 452M07100

    WISECO

    $199.95
    When your YZ250's piston is worn or damaged, you're losing compression, power, and reliability—exactly what you can't afford in competition or on the trail. The Wiseco 452M07100 replaces those losses with a forged aluminum piston engineered to withstand...
    452M07100
    SKU:
    452M07100
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    ENGINE TYPE:
    2-STROKE
    MODEL:
    FORGED SERIES
    BORE - OVERSIZE METRIC:
    +1.00 MM
    DISPLACEMENT:
    246 CC
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    64.00 MM
    UNITS:
    KIT
    BORE - OVERSIZE:
    +1,00 MM
    BORE SIZE METRIC:
    71.00 MM
    PISTON DIAMETER METRIC:
    70.95 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • Wiseco Piston Kit Yamaha YZ250 1980-1982 1.25mm 452M07150

    Wiseco Piston Kit Yamaha YZ250 1980-1982 1.25mm 452M07150

    WISECO

    $224.95
    The Wiseco 452M07150 is engineered for 2-stroke engines that demand reliability and power delivery across high RPM ranges. If you're running a Yamaha YZ250 or IT250, a worn piston directly impacts combustion efficiency, throttle response, and engine...
    452M07150
    SKU:
    452M07150
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE - OVERSIZE:
    +1,25 MM
    DISPLACEMENT:
    246 CC
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +1.25 MM
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    71.45 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    FORGED SERIES
    BORE SIZE METRIC:
    71.50 MM
    STROKE LENGTH METRIC:
    64.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $224.95
    Subtotal:
  • Wiseco Piston Kit Honda XR650L 1993-2017 1mm Oversize 4562M10100

    Wiseco Piston Kit Honda XR650L 1993-2017 1mm Oversize 4562M10100

    WISECO

    $248.95
    If you're running a Honda XR650L and need to restore lost compression or rebuild after high-mileage wear, a quality piston kit is non-negotiable. The Wiseco 4562M10100 delivers OEM-spec fitment with forged 2618 alloy construction that handles sustained...
    4562M10100
    SKU:
    4562M10100
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    BORE - OVERSIZE METRIC:
    +1.00 MM
    COMPRESSION RATIO IMPERIAL:
    8.7:1
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    BORE SIZE METRIC:
    101.00 MM
    DISPLACEMENT:
    650 CC
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    +1,00 MM
    PISTON DIAMETER METRIC:
    100.92 MM
    PRODUCT NAME:
    PISTON KIT
    STROKE LENGTH METRIC:
    82.00 MM
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    $248.95
    Qty in Cart: 0
    Quantity:
    Price:
    $248.95
    Subtotal:
  • Wiseco Piston Kit Racer Elite Kawasaki KX250F 2017-2019 RE811M07700

    Wiseco Piston Kit Racer Elite Kawasaki KX250F 2017-2019 RE811M07700

    WISECO

    $369.95
    If you're running a Kawasaki KX250F in competitive off-road conditions, piston wear directly impacts your power delivery and engine reliability. The Wiseco RE811M07700 Racer Elite kit replaces worn or damaged pistons with precision-engineered components...
    09105075
    SKU:
    09105075
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    BORE SIZE METRIC:
    77.00 MM
    COMPRESSION RATIO IMPERIAL:
    14.5:1
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $369.95
    Subtotal:
  • Wiseco Piston Kit Racer Elite YZ250F 2014-2016 RE812M07700

    Wiseco Piston Kit Racer Elite YZ250F 2014-2016 RE812M07700

    WISECO

    $369.95
    If you're pushing your YZ250F to its limits on the track or trail, your stock piston won't cut it. The Wiseco RE812M07700 delivers the compression ratio and durability needed to handle competitive riding without sacrificing reliability. This complete kit...
    09105076
    SKU:
    09105076
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    BORE SIZE METRIC:
    77.00 MM
    COMPRESSION RATIO IMPERIAL:
    14.5:1
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    $369.95
    Qty in Cart: 0
    Quantity:
    Price:
    $369.95
    Subtotal:
  • Wiseco Piston Kit Honda CR125R 1995-2003 RE908M05600

    Wiseco Piston Kit Honda CR125R 1995-2003 RE908M05600

    WISECO

    $204.95
    The Wiseco Racer Elite RE908M05600 piston kit is purpose-built for the Honda CR125R engine, delivering the reliability and precision you need to stay competitive in 2-stroke racing. Wiseco's proven manufacturing process and advanced material composition...
    09105079
    SKU:
    09105079
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    ARMORFITâ„¢
    PISTON MATERIAL:
    2000 SERIES ALLOY
    BORE - OVERSIZE:
    +2,00 MM
    BORE SIZE METRIC:
    56.00 MM
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE METRIC:
    +2.00 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    RACER ELITE
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $204.95
    Subtotal:
  • Wiseco 2-Stroke Piston Kit Honda CR250R 2002-2004 RE916M06640

    Wiseco 2-Stroke Piston Kit Honda CR250R 2002-2004 RE916M06640

    WISECO

    $277.95
    The Honda CR250R demands a piston that can handle the demands of competitive 2-stroke racing. Wiseco's RE916M06640 piston kit delivers the strength and thermal stability required to maintain peak performance lap after lap, while ArmorPlating technology...
    09105083
    SKU:
    09105083
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    2000 SERIES ALLOY
    PISTON MATERIAL:
    FORGED
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    ARMORFITâ„¢
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    RACER ELITE
    UNITS:
    KIT
    BORE SIZE METRIC:
    66.40 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $277.95
    Subtotal:
  • Wiseco Piston Kit 47mm for KTM 85 SX 2003-2025 RE910M04700

    Wiseco Piston Kit 47mm for KTM 85 SX 2003-2025 RE910M04700

    WISECO

    $171.95
    If you're running a KTM 85 SX and want reliable power delivery without compromise, a quality piston kit is non-negotiable. The Wiseco RE910M04700 combines precision engineering with proven durability, giving you the thermal stability and ring sealing you...
    09105085
    SKU:
    09105085
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    PISTON MATERIAL:
    2000 SERIES ALLOY
    PISTON MATERIAL:
    FORGED
    BORE SIZE METRIC:
    47.00 MM
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    RACER ELITE
    UNITS:
    KIT
    SKIRT COATING:
    ARMORFITâ„¢
    $171.95
    Qty in Cart: 0
    Quantity:
    Price:
    $171.95
    Subtotal:
  • Wiseco Honda XR200 1980-1983 66mm Piston Kit with Gaskets PK1117

    Wiseco Honda XR200 1980-1983 66mm Piston Kit with Gaskets PK1117

    WISECO

    $204.95
    When your XR200's top-end wears, a quality piston kit is non-negotiable for restoring compression, throttle response, and reliability. The Wiseco PK1117 delivers aerospace-grade forged aluminum construction paired with precision engineering—exactly what...
    09030172
    SKU:
    09030172
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    BORE - OVERSIZE:
    +0,50 MM
    COMPRESSION RATIO IMPERIAL:
    10.0:1
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    66.00 MM
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    PISTON DIAMETER METRIC:
    65.95 MM
    RIDING STYLE:
    OFF-ROAD
    DISPLACEMENT:
    192 CC
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    57.80 MM
    $204.95
    Qty in Cart: 0
    Quantity:
    Price:
    $204.95
    Subtotal:
  • Wiseco Piston Kit 48mm Bore for 2004-2008 Honda CRF80F PK1225

    Wiseco Piston Kit 48mm Bore for 2004-2008 Honda CRF80F PK1225

    WISECO

    $187.95
    When your CRF80F's factory piston shows wear, you lose compression, responsiveness, and the consistency you need on the track or trail. The Wiseco PK1225 restores full engine potential with a forged-aluminum piston engineered to OEM specifications,...
    09030173
    SKU:
    09030173
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    BORE - OVERSIZE:
    +0,50 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    DISPLACEMENT:
    79.7 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    45.00 MM
    BORE SIZE METRIC:
    48.00 MM
    COMPRESSION RATIO IMPERIAL:
    9.7:1
    ENGINE TYPE:
    4-STROKE
    PISTON DIAMETER METRIC:
    47.97 MM
    PRODUCT NAME:
    REBUILD KIT
    $187.95
    Qty in Cart: 0
    Quantity:
    Price:
    $187.95
    Subtotal:
  • Wiseco Piston Kit 48.5mm Bore for 1993-2003 Honda XR80R PK1226

    Wiseco Piston Kit 48.5mm Bore for 1993-2003 Honda XR80R PK1226

    WISECO

    $179.95
    When a 2-stroke engine is running on a worn or damaged piston, you're losing power, efficiency, and reliability on every ride. The Wiseco PK1226 restores your XR80R to peak performance with OEM-quality components engineered to handle the demands of...
    09030174
    SKU:
    09030174
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE - OVERSIZE METRIC:
    +1.00 MM
    BORE SIZE METRIC:
    48.50 MM
    PISTON DIAMETER METRIC:
    48.47 MM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    DISPLACEMENT:
    79.7 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    45.00 MM
    BORE - OVERSIZE:
    +1,00 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    COMPRESSION RATIO IMPERIAL:
    9.7:1
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    REBUILD KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    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
    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
    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
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $238.95
    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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