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
- Wiseco YZ85 2002-2018 Piston Kit with Gaskets PK1202 – 47.50mm forged aluminum piston kit for Yamaha YZ85 2-stroke; includes rings, wrist pin, circlips, bearing, and gaskets for enhanced combustion and throttle response.
- Wiseco 68.00mm Piston Kit with Gaskets Yamaha WR/YZ 250 PK1563 – Complete big bore kit for Yamaha WR250/YZ250; features forged piston, rings, wrist pin, circlips, and top-end gaskets for superior power and sealing.
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!
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On Sale
Wiseco Piston Kit Yamaha YZ 250 1988-1991 605M06800
WISECO
MSRP: $199.95Now: $170.00Was: $199.95Stock pistons in your YZ 250 can't handle sustained high RPM abuse—they expand unpredictably and rob you of peak power right when you need it most. The Wiseco 605M06800 piston kit solves this with a high-silicon aluminum alloy engineered specifically for...605M06800- SKU:
- 605M06800
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH:
- 68,00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 246,8 CC
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- STROKE LENGTH METRIC:
- 68.00 MM
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 68.00 MM
MSRP: $199.95Now: $170.00Was: $199.95Qty in Cart: 0Quantity:Price:MSRP: $199.95Now: $170.00Was: $199.95Subtotal: -
On Sale
Wiseco Piston Kit 68.50mm for 2002-2004 Honda CR250R 801M06850
WISECO
MSRP: $224.95Now: $191.00Was: $224.95The Wiseco Piston Kit is engineered for CR250R riders who refuse to leave performance on the table. A worn or stock piston limits your engine's potential—this kit restores compression, throttle response, and durability through precision CNC machining and...09100201- SKU:
- 09100201
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE - OVERSIZE:
- +2,10 MM
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 72.00 MM
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +2.10 MM
- DISPLACEMENT:
- 265 CC
- PISTON MATERIAL:
- FORGED
- BORE SIZE METRIC:
- 68.50 MM
MSRP: $224.95Now: $191.00Was: $224.95Qty in Cart: 0Quantity:Price:MSRP: $224.95Now: $191.00Was: $224.95Subtotal: -
On Sale
Wiseco Piston Kit 39mm 11:1 Compression Honda CRF50F 2004-2013 4798M03900
WISECO
MSRP: $146.95Now: $102.00Was: $146.95If you're running a Honda CRF50F, XR50R, or Z50R and want to unlock measurable gains in power and acceleration, a quality piston upgrade is one of the highest-impact modifications you can make. The Wiseco 39mm 11:1 compression piston kit replaces a worn...09100202- SKU:
- 09100202
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.1:1
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 39.00 MM
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 49.5 CC
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 41.40 MM
MSRP: $146.95Now: $102.00Was: $146.95 -
On Sale
Wiseco Piston Kit 68.50mm 2.10mm Oversize Yamaha YZ250 1999-2020 804M06850
WISECO
MSRP: $232.95Now: $191.00Was: $232.95The Yamaha YZ250 demands a piston built for the rigors of competitive riding—stock components simply don't cut it when you're pushing peak RPMs lap after lap. Wiseco's Pro-Lite design delivers the durability and responsiveness you need to maintain edge...09100207- SKU:
- 09100207
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE SIZE METRIC:
- 68.50 MM
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- BORE - OVERSIZE:
- +2,10 MM
- BORE - OVERSIZE METRIC:
- +2.10 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 265 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
MSRP: $232.95Now: $191.00Was: $232.95Qty in Cart: 0Quantity:Price:MSRP: $232.95Now: $191.00Was: $232.95Subtotal: -
On Sale
Wiseco Piston Kit with Gasket for Suzuki RM-Z250 2010-2018 PK1878
WISECO
MSRP: $324.95Now: $276.00Was: $324.95When you're pushing your RMZ250 to the limit on the track, piston reliability becomes non-negotiable. Wiseco's forged piston kit delivers the durability and precision you need to maintain peak performance lap after lap, while the included gasket set...09031167- SKU:
- 09031167
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- STROKE LENGTH METRIC:
- 53.60 MM
- DISPLACEMENT:
- 250 CC
- SKIRT COATING:
- ARMORGLIDE®
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- PISTON DIAMETER METRIC:
- 76.96 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $324.95Now: $276.00Was: $324.95Qty in Cart: 0Quantity:Price:MSRP: $324.95Now: $276.00Was: $324.95Subtotal: -
On Sale
Wiseco Piston Kit 89mm 12:1 Compression for 2003-2007 KTM 450 EXC-F 4942M08900
WISECO
MSRP: $284.95Now: $242.00Was: $284.95A high-compression piston kit is essential for maximizing your KTM 450 EXC-F's power output and engine longevity under demanding conditions. The Wiseco 89mm 12:1 compression design delivers improved combustion efficiency and throttle response, whether...09101674- SKU:
- 09101674
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- DISPLACEMENT:
- 448 CC
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 89.00 MM
- SKIRT COATING:
- MOLY COATED
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
MSRP: $284.95Now: $242.00Was: $284.95 -
On Sale
Wiseco Piston Kit Standard KTM 360 SX 1996-1997 747M07800
WISECO
MSRP: $244.95Now: $208.00Was: $244.95The stock piston in your KTM 360 SX is a limiting factor if you're pushing harder on the track or trail. Wiseco's purpose-built piston kit delivers the precision engineering and thermal management needed to unlock reliable power gains while keeping your...09101694- SKU:
- 09101694
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- BORE SIZE METRIC:
- 78.00 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- GP STYLE
- STROKE LENGTH METRIC:
- 74.00 MM
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 353 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
MSRP: $244.95Now: $208.00Was: $244.95Qty in Cart: 0Quantity:Price:MSRP: $244.95Now: $208.00Was: $244.95Subtotal: -
On Sale
Wiseco Piston Kit 58mm for Suzuki RM125 2004-2008 836M05800
WISECO
MSRP: $199.95Now: $170.00Was: $199.95Stock pistons can't handle the demands of serious riding—they wear quickly, lose compression, and rob you of power. The Wiseco 58mm Piston Kit for your RM125 is engineered to reverse that, delivering the durability and performance gains you need whether...09101696- SKU:
- 09101696
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.00 MM
- BORE SIZE METRIC:
- 58.00 MM
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
MSRP: $199.95Now: $170.00Was: $199.95Qty in Cart: 0Quantity:Price:MSRP: $199.95Now: $170.00Was: $199.95Subtotal: -
On Sale
Wiseco Piston Kit Gas Gas EC 300 2015-2018 850M07200
WISECO
MSRP: $244.95Now: $208.00Was: $244.95A worn or stock piston limits your Gas Gas EC 300's potential, costing you power delivery and engine longevity. The Wiseco piston kit delivers precision-engineered combustion geometry and durable aluminum construction that restores peak performance while...09101699- SKU:
- 09101699
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- DISPLACEMENT:
- 293 CC
- RIDING STYLE:
- STREET
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE SIZE METRIC:
- 72.00 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
MSRP: $244.95Now: $208.00Was: $244.95Qty in Cart: 0Quantity:Price:MSRP: $244.95Now: $208.00Was: $244.95Subtotal: -
On Sale
Wiseco Piston Kit Standard 47mm 10.5:1 Honda CRF70F 2004-2012 4880M04700
WISECO
MSRP: $134.95Now: $115.00Was: $134.95The Wiseco Piston Kit is engineered for Honda CRF70F owners looking to restore or upgrade their engine's compression and combustion efficiency. A worn or damaged piston directly impacts throttle response, fuel economy, and overall engine reliability—this...09100747- SKU:
- 09100747
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BORE SIZE METRIC:
- 47.00 MM
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 41.40 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- DISPLACEMENT:
- 72 CC
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
MSRP: $134.95Now: $115.00Was: $134.95Qty in Cart: 0Quantity:Price:MSRP: $134.95Now: $115.00Was: $134.95Subtotal: -
On Sale
WISECO Piston Kit with Gaskets PK1399
WISECO
MSRP: $334.95Now: $276.00Was: $334.95The stock piston in your RM-Z450 is a compromise between cost and durability—fine for casual riding, but it limits your engine's potential and can't handle sustained high-RPM abuse. The Wiseco PK1399 replaces that limitation with a purpose-built piston...09030569- SKU:
- 09030569
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- BORE SIZE METRIC:
- 95.50 MM
- MODEL:
- FORGED SERIES
- ENGINE TYPE:
- 4-STROKE
- TYPE:
- TOP END
- DISPLACEMENT:
- 450 CC
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 62.80 MM
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- PISTON DIAMETER METRIC:
- 95.44 MM
- PRODUCT NAME:
- REBUILD KIT
- SKIRT COATING:
- ARMORGLIDE®
MSRP: $334.95Now: $276.00Was: $334.95 -
On Sale
Wiseco Piston Kit 48mm 10.5:1 Compression for Honda CRF70F 2004-2012 4880M04800
WISECO
MSRP: $127.95Now: $115.00Was: $127.95Stock pistons in your Honda CRF70F can become a limiting factor when you're pushing for consistent power and reliability across seasons. The Wiseco 48mm piston kit delivers the precision-engineered geometry and high silicon aluminum construction needed...09100749- SKU:
- 09100749
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- DISPLACEMENT:
- 75 CC
- DISPLACEMENT:
- 72 CC
- STROKE LENGTH METRIC:
- 41.40 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 48.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
MSRP: $127.95Now: $115.00Was: $127.95Qty in Cart: 0Quantity:Price:MSRP: $127.95Now: $115.00Was: $127.95Subtotal: -
On Sale
Wiseco Piston Kit 49.50 mm Bore Honda XR80 1979-1984 4665M04950
WISECO
MSRP: $169.95Now: $144.00Was: $169.95Stock pistons in your Honda XR80 will eventually reach their limits—especially if you're running aggressive ignition timing or pushing RPMs in competitive settings. The Wiseco Piston Kit 49.50 mm delivers the strength and precision engineering required...09100327- SKU:
- 09100327
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE - OVERSIZE:
- +2,00 MM
- BORE SIZE METRIC:
- 49.50 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- +2.00 MM
- DISPLACEMENT:
- 87 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 45.00 MM
- UNITS:
- EACH
MSRP: $169.95Now: $144.00Was: $169.95Qty in Cart: 0Quantity:Price:MSRP: $169.95Now: $144.00Was: $169.95Subtotal: -
On Sale
Wiseco Piston Kit 67.50mm 0.50mm Oversize for Suzuki RM250 1977-1981 405M06750
WISECO
MSRP: $199.95Now: $170.00Was: $199.95A worn or damaged piston compromises combustion efficiency and robs your RM250 of power and responsiveness. The Wiseco 67.50mm oversize piston kit restores your engine to peak performance with precision-engineered components built to withstand the...405M06750- SKU:
- 405M06750
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE SIZE METRIC:
- 67.50 MM
- DISPLACEMENT:
- 246 CC
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 70.00 MM
- PISTON DIAMETER METRIC:
- 67.44 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $199.95Now: $170.00Was: $199.95 -
On Sale
Wiseco Piston Kit Yamaha YZ250F 2008-2011 4952M07700
WISECO
MSRP: $279.95Now: $238.00Was: $279.95The Wiseco Piston Kit is engineered to deliver measurable gains in acceleration, throttle response, and overall engine reliability for your YZ250F. High-silicon aluminum construction resists thermal expansion and detonation, critical for maintaining...09102936- SKU:
- 09102936
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- STROKE LENGTH METRIC:
- 53.60 MM
- BORE - OVERSIZE:
- +6,00 MM
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- +6.00 MM
- BORE SIZE METRIC:
- 83.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
MSRP: $279.95Now: $238.00Was: $279.95 -
On Sale
Wiseco Piston Kit for Honda XR650L 1993-2021 4989M10000
WISECO
MSRP: $248.95Now: $204.00Was: $248.95The Wiseco Piston Kit is engineered for riders who need reliable, consistent performance from their Honda XR650L across all conditions—from high-altitude trails to sustained highway cruising. Wiseco's precision-forged aluminum construction delivers the...09102939- SKU:
- 09102939
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- BORE SIZE METRIC:
- 100.00 MM
- STROKE LENGTH METRIC:
- 82.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 650 CC
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
MSRP: $248.95Now: $204.00Was: $248.95 -
On Sale
Wiseco Honda XR650L 1993-2021 Piston Kit 4989M10241
WISECO
MSRP: $269.95Now: $229.00Was: $269.95The Wiseco 4989M10241 piston kit delivers measurable gains in compression ratio and combustion efficiency for your XR650L, translating directly to improved throttle response and mid-range power. Built from high-silicon aluminum, this kit resists thermal...09102941- SKU:
- 09102941
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- STROKE LENGTH METRIC:
- 82.00 MM
- PISTON MATERIAL:
- FORGED
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- BORE - OVERSIZE:
- +2,40 MM
- BORE - OVERSIZE METRIC:
- +2.40 MM
- BORE SIZE METRIC:
- 102.40 MM
- DISPLACEMENT:
- 650 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
MSRP: $269.95Now: $229.00Was: $269.95Qty in Cart: 0Quantity:Price:MSRP: $269.95Now: $229.00Was: $269.95Subtotal: -
On Sale
Wiseco Piston Kit 2.00mm Oversize 58.00mm Bore Yamaha YZ125 1976-1982 435M05800
WISECO
MSRP: $179.95Now: $153.00Was: $179.95Yamaha YZ125 owners running 1976–1982 models face inevitable piston wear under competitive riding conditions. The Wiseco 435M05800 kit addresses this head-on with a 2.00mm oversize bore and precision-engineered construction that restores lost compression...435M05800- SKU:
- 435M05800
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- BORE - OVERSIZE METRIC:
- +2.00 MM
- ENGINE TYPE:
- 2-STROKE
- BORE SIZE METRIC:
- 58.00 MM
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 57.95 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 50.00 MM
- BORE - OVERSIZE:
- +2,00 MM
- DISPLACEMENT:
- 123 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $179.95Now: $153.00Was: $179.95 -
Wossner Piston Kit 47.47mm Yamaha YZ85 2002-2025 8104DC
WOSSNER
$112.00The Wossner Piston Kit 8104DC is engineered for serious YZ85 builders who demand reliability under sustained high-RPM conditions. A worn or compromised piston directly impacts combustion efficiency, throttle response, and engine longevity—this complete...09104834- SKU:
- 09104834
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- 47.47 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SINGLE RING
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +0.02 MM
- BORE SIZE METRIC:
- 47.52 MM
- MODEL:
- STANDARD SERIES
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- +0,02 MM
- DISPLACEMENT:
- 84 CC
- PISTON MATERIAL:
- FORGED
$112.00 -
Wossner Piston Kit Honda CR85R 2003-2007 8105DA
WOSSNER
$112.00If you're rebuilding a 2-stroke top end, piston quality directly impacts engine longevity and performance. The Wossner 8105DA delivers the precision and durability demanded by serious CR85R racers and mechanics, with a complete kit that eliminates...09104835- SKU:
- 09104835
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BORE SIZE METRIC:
- 47.50 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SINGLE RING
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- DISPLACEMENT:
- 84.7 CC
- PISTON SIZE METRIC:
- 47.45 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
$112.00Qty in Cart: 0Quantity:Price:$112.00Subtotal:
