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 66mm 11.7:1 Piston Kit for 2007-2009 Honda CRF150R PK1427

    Wiseco 66mm 11.7:1 Piston Kit for 2007-2009 Honda CRF150R PK1427

    WISECO

    $306.95
    If you're pushing your CRF150R to its limits on the track, you need a piston kit engineered to handle the stress of high-RPM racing. Wiseco's forged construction and 11.7:1 compression ratio deliver the durability and performance gains that separate...
    09030688
    SKU:
    09030688
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    FORGED SERIES
    BORE SIZE METRIC:
    66.00 MM
    DISPLACEMENT:
    150 CC
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    COMPRESSION RATIO IMPERIAL:
    11.7:1
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    PRODUCT NAME:
    REBUILD KIT
    STROKE LENGTH METRIC:
    43.70 MM
    PISTON DIAMETER METRIC:
    STANDARD
    SKIRT COATING:
    ARMORGLIDE®
    $306.95
    Qty in Cart: 0
    Quantity:
    Price:
    $306.95
    Subtotal:
  • Wiseco Piston Kit with Gaskets for 2005-2007 Honda CR125R PK1393

    Wiseco Piston Kit with Gaskets for 2005-2007 Honda CR125R PK1393

    WISECO

    $246.95
    Top-end wear is the silent killer of 2-stroke performance. The Wiseco PK1393 piston kit replaces worn cylinders and pistons with precision-forged components engineered to handle sustained high RPM loads without sacrificing power delivery. If you're...
    09030520
    SKU:
    09030520
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE SIZE METRIC:
    54.00 MM
    DISPLACEMENT:
    125 CC
    PRODUCT NAME:
    REBUILD KIT
    PISTON DIAMETER METRIC:
    53.94 MM
    STROKE LENGTH METRIC:
    54.50 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $246.95
    Subtotal:
  • Wiseco Piston Kit with Gaskets for KTM 200 EXC 2003-2016 PK1373

    Wiseco Piston Kit with Gaskets for KTM 200 EXC 2003-2016 PK1373

    WISECO

    $269.95
    When you're pushing a 2-stroke engine to its limits, factory pistons won't cut it. The Wiseco Piston Kit for your KTM 200 EXC delivers the strength and thermal stability needed to handle sustained high RPM operation and aggressive riding conditions. This...
    09030530
    SKU:
    09030530
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    MODEL:
    PRO-LITE
    UNITS:
    KIT
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    60.00 MM
    BORE SIZE METRIC:
    64.00 MM
    DISPLACEMENT:
    193 CC
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    63.95 MM
    RIDING STYLE:
    STREET
    TYPE:
    TOP END
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PRODUCT NAME:
    REBUILD KIT
    SKIRT COATING:
    ARMORGLIDE®
    Qty in Cart: 0
    Quantity:
    Price:
    $269.95
    Subtotal:
  • Wiseco Yamaha RT180 1990-1998 65.00mm Piston Kit 772M06500

    Wiseco Yamaha RT180 1990-1998 65.00mm Piston Kit 772M06500

    WISECO

    $154.95
    If you're rebuilding or refreshing your Yamaha RT180's engine, a quality piston kit is non-negotiable—it's the heart of combustion efficiency and power delivery. The Wiseco 65.00mm piston kit delivers the precision fitment and material durability your...
    09102876
    SKU:
    09102876
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE - OVERSIZE:
    +0,50 MM
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    54.00 MM
    BORE SIZE METRIC:
    65.00 MM
    DISPLACEMENT:
    179 CC
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON
    UNITS:
    EACH
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • Wiseco Piston Kit Standard Bore 62.5mm 1999-2009 Gas Gas EC 200 848M06250

    Wiseco Piston Kit Standard Bore 62.5mm 1999-2009 Gas Gas EC 200 848M06250

    WISECO

    $174.95
    When your EC 200's piston shows signs of wear, you need a direct replacement that restores compression and power without guesswork. The Wiseco Piston Kit delivers precision-engineered construction in a bolt-on package, eliminating the hassle of sourcing...
    09102879
    SKU:
    09102879
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    STROKE LENGTH METRIC:
    65.00 MM
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    62.50 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    UNITS:
    EACH
    BORE - OVERSIZE:
    STANDARD
    DISPLACEMENT:
    199 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $174.95
    Subtotal:
  • Wiseco Piston Kit 2004-2006 Yamaha YFZ450 864M04500

    Wiseco Piston Kit 2004-2006 Yamaha YFZ450 864M04500

    WISECO

    $119.95
    When you're pushing your YFZ450 to its limits, factory pistons become the weak link. The Wiseco 864M04500 piston kit delivers the precision engineering and durability you need to run higher boost levels, extended RPM ranges, or aggressive tuning without...
    09102880
    SKU:
    09102880
    Availability:
    Ships Same Business Day
    Weight:
    0.27 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    65 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    PISTON MATERIAL:
    FORGED
    STROKE LENGTH METRIC:
    40.80 MM
    BORE SIZE METRIC:
    45.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $119.95
    Subtotal:
  • Wiseco YZ490 1982-1983 IT490 1983-1984 Piston Kit 478M08750

    Wiseco YZ490 1982-1983 IT490 1983-1984 Piston Kit 478M08750

    WISECO

    $234.95
    The Wiseco 478M08750 piston kit delivers the precision engineering and durability your YZ490 or IT490 demands, whether you're pushing hard on the track or tackling demanding trail conditions. Built from high-silicon alloy, this piston resists the extreme...
    478M08750
    SKU:
    478M08750
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    87.50 MM
    PRODUCT NAME:
    PISTON KIT
    STROKE LENGTH METRIC:
    82.00 MM
    BORE - OVERSIZE:
    +0,50 MM
    DISPLACEMENT:
    487 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    87.42 MM
    SKIRT COATING:
    NON-COATED
    Qty in Cart: 0
    Quantity:
    Price:
    $234.95
    Subtotal:
  • Wossner 53.96mm Piston Kit for Honda CR125R 1992-1999 8020DB

    Wossner 53.96mm Piston Kit for Honda CR125R 1992-1999 8020DB

    WOSSNER

    $122.00
    A worn or damaged piston compromises combustion efficiency, increases friction losses, and accelerates wear on your entire top-end assembly. The Wossner 8020DB delivers a complete, ready-to-install solution engineered for the demanding 2-stroke...
    09104723
    SKU:
    09104723
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE - OVERSIZE METRIC:
    +0.01 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    BORE - OVERSIZE:
    +0,01 MM
    BORE SIZE METRIC:
    54.01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    53.96 MM
    DISPLACEMENT:
    125 CC
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Piston Kit 66.37mm Yamaha YZ250 1999-2023 8216DC

    Wossner Piston Kit 66.37mm Yamaha YZ250 1999-2023 8216DC

    WOSSNER

    $152.00
    The Wossner Piston Kit 8216DC is engineered specifically for Yamaha YZ250 engines, delivering the reliability and precision you need to maintain peak performance across thousands of combustion cycles. Built from 4032 T6 forged aluminum and featuring a...
    09104879
    SKU:
    09104879
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    BORE - OVERSIZE:
    +0,02 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    66.42 MM
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    DISPLACEMENT:
    249 CC
    TYPE:
    DUAL RING
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON SIZE METRIC:
    66.37 MM
    RIDING STYLE:
    OFF-ROAD
    $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Piston Kit 44.98mm KTM 65 SX 2009-2023 8241DC

    Wossner Piston Kit 44.98mm KTM 65 SX 2009-2023 8241DC

    WOSSNER

    $102.00
    Stock pistons are a weak link in high-demand 2-stroke engines, especially when pushing a KTM 65 SX to its limits. The Wossner 8241DC delivers the durability and precision engineering needed for reliable performance across multiple seasons of racing or...
    09104892
    SKU:
    09104892
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE - OVERSIZE METRIC:
    +0.02 MM
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    44.98 MM
    PRODUCT NAME:
    PISTON KIT
    ENGINE TYPE:
    2-STROKE
    TYPE:
    SINGLE RING
    BORE - OVERSIZE:
    +0,02 MM
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    BORE SIZE METRIC:
    45.04 MM
    DISPLACEMENT:
    64 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $102.00
    Subtotal:
  • Wossner Single Ring Piston Kit Kawasaki KX125 1990 8106DA

    Wossner Single Ring Piston Kit Kawasaki KX125 1990 8106DA

    WOSSNER

    $117.95
    A piston kit is the heart of 2-stroke performance—worn or inadequate pistons directly limit power delivery, increase blow-by, and accelerate engine wear. The Wossner 8106DA is engineered to restore or exceed OEM performance on your KX125, combining...
    09105531
    SKU:
    09105531
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE SIZE METRIC:
    56.00 MM
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    PISTON SIZE METRIC:
    55.94 MM
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $117.95
    Subtotal:
  • Wossner Piston Kit Yamaha YZ250 1988-1991 68.44mm 8134D050

    Wossner Piston Kit Yamaha YZ250 1988-1991 68.44mm 8134D050

    WOSSNER

    $152.00
    A worn or damaged piston directly undermines your YZ250's power delivery, throttle response, and engine longevity. This Wossner kit restores—or significantly upgrades—your 2-stroke's performance with precision-engineered internals that handle sustained...
    09105547
    SKU:
    09105547
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    DISPLACEMENT:
    246 CC
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    68.44 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    68.50 MM
    BORE - OVERSIZE:
    +0,50 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Yamaha YZ250 1988-1991 68.94mm Piston Kit 8134D100

    Wossner Yamaha YZ250 1988-1991 68.94mm Piston Kit 8134D100

    WOSSNER

    $152.00
    The Wossner YZ250 piston kit delivers the precision engineering your 2-stroke engine demands, whether you're chasing lap times or rebuilding after hard use. This complete kit—piston, rings, pin, and clips—eliminates guesswork on fitment and gives you...
    09105548
    SKU:
    09105548
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    BORE - OVERSIZE:
    +1,00 MM
    DISPLACEMENT:
    246 CC
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE METRIC:
    +1.00 MM
    BORE SIZE METRIC:
    69.00 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    68.94 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Piston Kit 67.94mm 2-Stroke 246cc 8134DA

    Wossner Piston Kit 67.94mm 2-Stroke 246cc 8134DA

    WOSSNER

    $152.00
    If you're running a 246cc 2-stroke at the limit, piston failure isn't an option—it's a catastrophe. The Wossner 8134DA delivers German-engineered reliability with a complete kit that eliminates guesswork during rebuild, so you can get back on the track...
    09105551
    SKU:
    09105551
    Availability:
    Ships Same Business Day
    Weight:
    0.76 LBS
    DISPLACEMENT:
    246 CC
    ENGINE TYPE:
    2-STROKE
    PISTON SIZE METRIC:
    67.94 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    68.00 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wiseco Piston Kit 48.5mm for 1979-1984 Honda XR80 PK1278

    Wiseco Piston Kit 48.5mm for 1979-1984 Honda XR80 PK1278

    WISECO

    $179.95
    When you're pushing your XR80 to its limits, the stock piston can't keep up. The Wiseco PK1278 piston kit delivers the strength and precision engineering needed to handle aggressive riding and racing conditions, while maintaining reliability through...
    09030230
    SKU:
    09030230
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE - OVERSIZE:
    +1,00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    PISTON DIAMETER METRIC:
    48.47 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    DISPLACEMENT:
    79.7 CC
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    BORE SIZE METRIC:
    48.50 MM
    COMPRESSION RATIO IMPERIAL:
    9.7:1
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    45.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • Wiseco Honda XR200 1980-1983 Piston Kit with Gaskets PK1116

    Wiseco Honda XR200 1980-1983 Piston Kit with Gaskets PK1116

    WISECO

    $204.95
    A top-end rebuild demands precision components that can handle sustained high RPMs and extreme combustion temperatures. The Wiseco Honda XR200 Piston Kit delivers exactly that—high-silicone forged construction with minimal thermal expansion, paired with...
    09030231
    SKU:
    09030231
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE SIZE METRIC:
    65.50 MM
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    COMPRESSION RATIO IMPERIAL:
    10.0:1
    DISPLACEMENT:
    192 CC
    PISTON DIAMETER METRIC:
    65.45 MM
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    57.80 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $204.95
    Subtotal:
  • Wiseco Piston Kit Yamaha DT125 1974-1981 56.5mm Bore 236M05650

    Wiseco Piston Kit Yamaha DT125 1974-1981 56.5mm Bore 236M05650

    WISECO

    $162.95
    If you're running a DT125 that sees serious trail or track time, piston wear is inevitable—and a worn piston kills compression, throttle response, and fuel efficiency. The Wiseco 236M05650 delivers OEM-grade reliability with measurable performance gains...
    236M05650
    SKU:
    236M05650
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    BORE - OVERSIZE:
    +0,50 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    UNITS:
    KIT
    BORE SIZE METRIC:
    56.50 MM
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    56.45 MM
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    ATV
    BORE - OVERSIZE METRIC:
    +0.50 MM
    DISPLACEMENT:
    123 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    50.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $162.95
    Subtotal:
  • Wiseco Piston Kit 77mm Kawasaki JS300 1987-1991 549M07700

    Wiseco Piston Kit 77mm Kawasaki JS300 1987-1991 549M07700

    WISECO

    $149.95
    When you're rebuilding a 2-cycle engine, piston quality directly impacts reliability, power output, and longevity. The Wiseco 77mm forged piston kit eliminates guesswork with precision engineering and a complete ring-and-pin assembly, so you can...
    549M07700
    SKU:
    549M07700
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    BORE - OVERSIZE:
    +1,00 MM
    RIDING STYLE:
    WATERCRAFT
    BORE - OVERSIZE METRIC:
    +1.00 MM
    DISPLACEMENT:
    303 CC
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON
    UNITS:
    EACH
    BORE SIZE METRIC:
    77.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $149.95
    Subtotal:
  • Wiseco Piston Kit 56.00mm Oversize 2004-2010 Suzuki RM125 836M05600

    Wiseco Piston Kit 56.00mm Oversize 2004-2010 Suzuki RM125 836M05600

    WISECO

    $184.95
    If you're running a stock 125cc two-stroke, you're leaving performance on the table. A Wiseco piston kit opens the door to measurable gains in power and throttle response while maintaining the reliability your bike demands. Whether you're rebuilding...
    09100290
    SKU:
    09100290
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE METRIC:
    +2.00 MM
    ENGINE TYPE:
    2-STROKE
    MODEL:
    RACER'S CHOICE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    BORE - OVERSIZE:
    +2,00 MM
    BORE SIZE METRIC:
    56.00 MM
    PRODUCT NAME:
    PISTON
    DISPLACEMENT:
    125 CC
    STROKE LENGTH METRIC:
    54.00 MM
    PISTON MATERIAL:
    FORGED
    Qty in Cart: 0
    Quantity:
    Price:
    $184.95
    Subtotal:
  • Wiseco Piston Kit 47mm Bore Yamaha YZ80 1975 222M04700

    Wiseco Piston Kit 47mm Bore Yamaha YZ80 1975 222M04700

    WISECO

    $138.95
    Whether you're prepping your YZ80 for weekend racing or maximizing reliability on the trail, a quality piston kit is fundamental to engine longevity and power output. Wiseco's high-silicon alloy construction delivers the strength needed to handle...
    222M04700
    SKU:
    222M04700
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE SIZE METRIC:
    47.00 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    46.95 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    42.00 MM
    DISPLACEMENT:
    72 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $138.95
    Qty in Cart: 0
    Quantity:
    Price:
    $138.95
    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