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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 78mm 10.5:1 Compression for 1986-2004 Honda XR250R 4466M07800

    Wiseco Piston Kit 78mm 10.5:1 Compression for 1986-2004 Honda XR250R 4466M07800

    WISECO

    $238.95
    If you're running a Honda XR250R or XR250L and want measurable gains in power and throttle response, a quality piston kit is one of the most direct upgrades you can make. The Wiseco 78mm 10.5:1 compression kit increases combustion efficiency and...
    09100755
    SKU:
    09100755
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    BORE - OVERSIZE:
    +5,00 MM
    BORE SIZE METRIC:
    78.00 MM
    DISPLACEMENT:
    250 CC
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE METRIC:
    +5.00 MM
    PRODUCT NAME:
    PISTON
    COMPRESSION RATIO IMPERIAL:
    10.5:1
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    59.50 MM
    UNITS:
    EACH
    $238.95
    Qty in Cart: 0
    Quantity:
    Price:
    $238.95
    Subtotal:
  • Wiseco Piston Kit Honda CRF450R 2017-2025 4823M09600

    Wiseco Piston Kit Honda CRF450R 2017-2025 4823M09600

    WISECO

    $269.95
    The stock piston in your CRF450R limits your engine's potential—increased heat stress, carbon buildup, and efficiency losses rob you of power and reliability. This Wiseco piston kit replaces those compromises with race-proven technology that delivers...
    09100758
    SKU:
    09100758
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    96.00 MM
    COMPRESSION RATIO IMPERIAL:
    13.5:1
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON
    SKIRT COATING:
    ARMORGLIDE®
    DISPLACEMENT:
    449 CC
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    62.10 MM
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $269.95
    Subtotal:
  • Wiseco Piston Kit 52mm 2003-2018 KTM 85/105 SX 855M05200

    Wiseco Piston Kit 52mm 2003-2018 KTM 85/105 SX 855M05200

    WISECO

    $177.95
    Two-stroke engines demand precision components that can handle extreme combustion pressures and heat cycles. The Wiseco Piston Kit 855M05200 delivers exactly that—a CNC-machined, high-silicon aluminum piston engineered to maximize power output while...
    09030587
    SKU:
    09030587
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE:
    STANDARD
    DISPLACEMENT:
    104 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    UNITS:
    EACH
    BORE - OVERSIZE METRIC:
    STANDARD
    PRODUCT NAME:
    PISTON
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    ARMORGLIDE®
    STROKE LENGTH METRIC:
    48.95 MM
    BORE SIZE METRIC:
    52.00 MM
    ENGINE TYPE:
    2-STROKE
    Qty in Cart: 0
    Quantity:
    Price:
    $177.95
    Subtotal:
  • Wiseco 200 EXC 1998-2016 Piston Kit 2.00mm Oversize 770M06600

    Wiseco 200 EXC 1998-2016 Piston Kit 2.00mm Oversize 770M06600

    WISECO

    $184.95
    If you're running a KTM 200 EXC between 1998-2016 and want to reclaim lost compression and restore factory performance, a piston replacement is essential maintenance. This Wiseco kit delivers OEM-quality reliability with 2.00mm oversize dimensions,...
    09100776
    SKU:
    09100776
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    BORE - OVERSIZE:
    +2,00 MM
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    STROKE LENGTH METRIC:
    60.00 MM
    BORE SIZE METRIC:
    66.00 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    BORE - OVERSIZE METRIC:
    +2.00 MM
    DISPLACEMENT:
    193 CC
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    RIDING STYLE:
    OFF-ROAD
    $184.95
    Qty in Cart: 0
    Quantity:
    Price:
    $184.95
    Subtotal:
  • Wiseco Piston Kit 66.40mm for KTM 250 SX 2005-2016 856M06640

    Wiseco Piston Kit 66.40mm for KTM 250 SX 2005-2016 856M06640

    WISECO

    $205.95
    A worn or stock piston limits your KTM 250's potential—this Wiseco kit restores compression, improves throttle response, and delivers the reliability needed for sustained high-RPM performance. Whether you're chasing lap times or pushing through technical...
    09100778
    SKU:
    09100778
    Availability:
    Ships Same Business Day
    Weight:
    0.71 LBS
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PRODUCT NAME:
    PISTON
    RIDING STYLE:
    STREET
    SKIRT COATING:
    ARMORGLIDE®
    DISPLACEMENT:
    249 CC
    STROKE LENGTH METRIC:
    72.00 MM
    BORE SIZE METRIC:
    66.40 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $205.95
    Qty in Cart: 0
    Quantity:
    Price:
    $205.95
    Subtotal:
  • Wiseco Piston Kit Standard KTM 300 EXC 2017 858M07200

    Wiseco Piston Kit Standard KTM 300 EXC 2017 858M07200

    WISECO

    $234.95
    The Wiseco Piston Kit is engineered for KTM 300 EXC riders who demand reliability and consistent power delivery in demanding terrain. A quality piston directly impacts engine longevity and performance—worn or inferior pistons lead to compression loss,...
    09100779
    SKU:
    09100779
    Availability:
    Ships Same Business Day
    Weight:
    0.81 LBS
    BORE - OVERSIZE:
    STANDARD
    DISPLACEMENT:
    297 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    66.40 MM
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    ARMORGLIDE®
    ENGINE TYPE:
    2-STROKE
    STROKE LENGTH METRIC:
    73.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $234.95
    Subtotal:
  • Wiseco Piston Kit 95mm 13:1 Compression for KTM 450 SX 2003-2007 4806M09500

    Wiseco Piston Kit 95mm 13:1 Compression for KTM 450 SX 2003-2007 4806M09500

    WISECO

    $284.95
    If you're running a KTM 450 SX and want measurable gains in power delivery and engine durability, a high-compression piston kit is one of the most direct upgrades available. The Wiseco 13:1 compression ratio significantly improves combustion efficiency,...
    09100785
    SKU:
    09100785
    Availability:
    Ships Same Business Day
    Weight:
    0.97 LBS
    BORE SIZE METRIC:
    95.00 MM
    RIDING STYLE:
    OFF-ROAD
    COMPRESSION RATIO IMPERIAL:
    13.0:1
    DISPLACEMENT:
    449 CC
    STROKE LENGTH METRIC:
    63.40 MM
    BORE - OVERSIZE:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    Qty in Cart: 0
    Quantity:
    Price:
    $284.95
    Subtotal:
  • Wiseco Piston Kit 0.50mm Oversize 70.00mm Bore Husqvarna CR250 WR250 1974-1984 137M07000

    Wiseco Piston Kit 0.50mm Oversize 70.00mm Bore Husqvarna CR250 WR250 1974-1984 137M07000

    WISECO

    $199.95
    Stock pistons are engineered for longevity, not peak performance—and every heat cycle pushes them closer to failure. The Wiseco Piston Kit delivers the precision engineering and premium materials needed to restore your Husqvarna CR250 or WR250 to...
    137M07000
    SKU:
    137M07000
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    BORE - OVERSIZE METRIC:
    +0.50 MM
    STROKE LENGTH METRIC:
    64.50 MM
    BORE SIZE METRIC:
    70.00 MM
    PISTON DIAMETER METRIC:
    69.95 MM
    PRODUCT NAME:
    PISTON KIT
    DISPLACEMENT:
    244.70 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE:
    +0,50 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • Wiseco Husqvarna CR250 1974-1984 1.0mm Piston Kit 137M07050

    Wiseco Husqvarna CR250 1974-1984 1.0mm Piston Kit 137M07050

    WISECO

    $199.95
    The Wiseco Husqvarna CR250 Piston Kit delivers the precision engineering your classic machine needs to run at peak efficiency. A worn or stock piston limits your engine's potential—this high-silicon aluminum replacement restores compression, improves...
    137M07050
    SKU:
    137M07050
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    BORE - OVERSIZE:
    +1,00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    DISPLACEMENT:
    244.70 CC
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    64.50 MM
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    70.50 MM
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    70.45 MM
    $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • Wiseco Piston Kit 1.50mm Oversize 71.00mm for Husqvarna CR250 1974-1984 137M07100

    Wiseco Piston Kit 1.50mm Oversize 71.00mm for Husqvarna CR250 1974-1984 137M07100

    WISECO

    $224.95
    If you're running a vintage Husqvarna CR250 or WR250, a worn piston kit directly limits your engine's ability to seal combustion pressure and maintain rpm stability. The Wiseco 1.50mm oversize piston restores compression and responsiveness while the...
    137M07100
    SKU:
    137M07100
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    BORE - OVERSIZE:
    +1,50 MM
    STROKE LENGTH METRIC:
    64.50 MM
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    70.95 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +1.50 MM
    DISPLACEMENT:
    244.70 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    BORE SIZE METRIC:
    71.00 MM
    PRODUCT NAME:
    PISTON KIT
    $224.95
    Qty in Cart: 0
    Quantity:
    Price:
    $224.95
    Subtotal:
  • Wiseco Piston Kit Kawasaki KX500 1988-2004 88mm 575M08800

    Wiseco Piston Kit Kawasaki KX500 1988-2004 88mm 575M08800

    WISECO

    $244.95
    The Kawasaki KX500's performance hinges on reliable internal components that can withstand the demands of both trail and track riding. The Wiseco Piston Kit delivers the precision engineering and material quality necessary to maintain consistent power...
    09102866
    SKU:
    09102866
    Availability:
    Ships Same Business Day
    Weight:
    1.30 LBS
    BORE - OVERSIZE:
    +2,00 MM
    BORE - OVERSIZE METRIC:
    +2.00 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    86.00 MM
    BORE SIZE METRIC:
    88.00 MM
    DISPLACEMENT:
    523 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    UNITS:
    EACH
    $244.95
    Qty in Cart: 0
    Quantity:
    Price:
    $244.95
    Subtotal:
  • Wiseco Piston Kit Yamaha YZ125 1990-1992 594M05700

    Wiseco Piston Kit Yamaha YZ125 1990-1992 594M05700

    WISECO

    $154.95
    A worn or damaged piston directly compromises your YZ125's power output, throttle response, and engine reliability. The Wiseco Pro-Lite Piston Kit restores—and exceeds—OEM performance through precision forging and optimized ring geometry, keeping your...
    09102867
    SKU:
    09102867
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    50.70 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    UNITS:
    EACH
    BORE SIZE METRIC:
    57.00 MM
    DISPLACEMENT:
    129 CC
    BORE - OVERSIZE:
    +1,00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • Wiseco Piston Kit 57.00mm Oversize for Suzuki DS125 1979-1981 449M05700

    Wiseco Piston Kit 57.00mm Oversize for Suzuki DS125 1979-1981 449M05700

    WISECO

    $154.95
    If you're running a classic Suzuki two-stroke and need to restore compression or bump displacement, a quality piston kit is non-negotiable. Wiseco's 57.00mm oversize piston delivers the precision fit and thermal stability required for reliable...
    449M05700
    SKU:
    449M05700
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    STROKE LENGTH METRIC:
    50.00 MM
    BORE - OVERSIZE:
    +1,00 MM
    BORE SIZE METRIC:
    57.00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    DISPLACEMENT:
    123 CC
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    56.95 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    SKIRT COATING:
    NON-COATED
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • Wiseco Piston Kit 56.5mm for 1982-1984 Honda CR125R 448M05650

    Wiseco Piston Kit 56.5mm for 1982-1984 Honda CR125R 448M05650

    WISECO

    $162.95
    If you're running a CR125R hard on the track or trail, piston wear directly impacts your power delivery and engine reliability. The Wiseco 56.5mm piston kit restores—or exceeds—OEM performance with premium materials and precision engineering that handles...
    448M05650
    SKU:
    448M05650
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE SIZE METRIC:
    56.50 MM
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    56.44 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    +1.00 MM
    DISPLACEMENT:
    123 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    DISPLACEMENT:
    120 CC
    BORE - OVERSIZE:
    +1,00 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    50.00 MM
    UNITS:
    KIT
    $162.95
    Qty in Cart: 0
    Quantity:
    Price:
    $162.95
    Subtotal:
  • Wiseco Piston Kit Honda CR125R 1979-1984 57.5mm Bore 448M05750

    Wiseco Piston Kit Honda CR125R 1979-1984 57.5mm Bore 448M05750

    WISECO

    $179.95
    If you're running a CR125R between 1979 and 1984, piston wear directly impacts throttle response, power delivery, and engine longevity. The Wiseco 448M05750 replaces worn or damaged pistons with a high-silicon alloy design that restores lost performance...
    448M05750
    SKU:
    448M05750
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE METRIC:
    +2.00 MM
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    57.44 MM
    PRODUCT NAME:
    PISTON KIT
    DISPLACEMENT:
    123 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    50.00 MM
    BORE - OVERSIZE:
    +2,00 MM
    DISPLACEMENT:
    120 CC
    BORE SIZE METRIC:
    57.50 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $179.95
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • Wiseco Piston Honda CB500F 2013-2025 4466M07300

    Wiseco Piston Honda CB500F 2013-2025 4466M07300

    WISECO

    $210.95
    If you're running a Honda CB500F and want to extract measurable gains in power and reliability, a quality piston upgrade is one of the most direct paths to getting there. Wiseco's forged-aluminum construction and titanium nitride-coated rings deliver the...
    4466M07300
    SKU:
    4466M07300
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE SIZE METRIC:
    73.00 MM
    COMPRESSION RATIO IMPERIAL:
    10.5:1
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON DIAMETER METRIC:
    72.95 MM
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    STROKE LENGTH METRIC:
    59.50 MM
    BORE - OVERSIZE:
    STANDARD
    DISPLACEMENT:
    250 CC
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    $210.95
    Qty in Cart: 0
    Quantity:
    Price:
    $210.95
    Subtotal:
  • Wiseco Piston Kit 73.50mm 10.5:1 Compression Yamaha TTR250 1999-2006 4689M07350

    Wiseco Piston Kit 73.50mm 10.5:1 Compression Yamaha TTR250 1999-2006 4689M07350

    WISECO

    $194.95
    Stock pistons are a limiting factor when you're pushing your TT-R250 to its limits. The Wiseco 73.50mm piston kit delivers the compression ratio and material science necessary for reliable power gains, whether you're running harder jetting or higher...
    4689M07350
    SKU:
    4689M07350
    Availability:
    Ships Same Business Day
    Weight:
    0.66 LBS
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    73.50 MM
    DISPLACEMENT:
    249 CC
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    COMPRESSION RATIO IMPERIAL:
    10.5:1
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    73.45 MM
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    ENGINE TYPE:
    4-STROKE
    STROKE LENGTH METRIC:
    59.60 MM
    BORE - OVERSIZE:
    +0,50 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $194.95
    Subtotal:
  • Wiseco Piston Kit 95mm 12.5:1 Compression for 2000-2002 Yamaha YZ426F 4693M09500

    Wiseco Piston Kit 95mm 12.5:1 Compression for 2000-2002 Yamaha YZ426F 4693M09500

    WISECO

    $239.95
    If you're pushing your YZ426F or WR426F to its limits, a worn or stock piston compromises both reliability and peak power output. The Wiseco Piston Kit delivers the compression ratio and engineering precision needed to unlock faster acceleration and...
    4693M09500
    SKU:
    4693M09500
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    DISPLACEMENT:
    426 CC
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    94.92 MM
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    12.5:1
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    95.00 MM
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    STROKE LENGTH METRIC:
    60.10 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $239.95
    Subtotal:
  • Wiseco Piston Kit Yamaha YZ465 1980-1981 1.50mm 451M08650

    Wiseco Piston Kit Yamaha YZ465 1980-1981 1.50mm 451M08650

    WISECO

    $244.95
    If you're running a YZ465 from the early '80s, piston longevity directly impacts your race results and trail reliability. This Wiseco kit delivers the strength you need for high-RPM demands while maintaining the lightweight responsiveness that 2-stroke...
    451M08650
    SKU:
    451M08650
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    DISPLACEMENT:
    465 CC
    BORE - OVERSIZE:
    +1,50 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    BORE - OVERSIZE METRIC:
    +1.50 MM
    MODEL:
    FORGED SERIES
    BORE SIZE METRIC:
    86.50 MM
    PISTON DIAMETER METRIC:
    86.42 MM
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    82.00 MM
    UNITS:
    KIT
    $244.95
    Qty in Cart: 0
    Quantity:
    Price:
    $244.95
    Subtotal:
  • Wiseco Piston Kit Racer Elite Kawasaki KX250F 2015-2016 RE801M07700

    Wiseco Piston Kit Racer Elite Kawasaki KX250F 2015-2016 RE801M07700

    WISECO

    $369.95
    If you're serious about maximizing your KX250F's output, a quality piston kit is non-negotiable. Wiseco's Racer Elite design delivers measurable gains in throttle response and mid-range power while maintaining the durability required for consistent,...
    09105070
    SKU:
    09105070
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    14.5:1
    BORE SIZE METRIC:
    77.00 MM
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    ARMORGLIDE®
    $369.95
    Qty in Cart: 0
    Quantity:
    Price:
    $369.95
    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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