Dirt Bike Cylinders and Parts
Dirt Bike Cylinders & Cylinder Kits for Yamaha, Kawasaki, KTM & Husqvarna at JJ Motorsports
Rebore or replace your dirt bike's cylinder with premium OEM-spec and big-bore cylinders from JJ Motorsports, precision-machined for perfect piston fit, maximum heat dissipation, and race-proven durability in motocross, enduro, and trail riding. Our selection includes standard bore replacements and performance cylinders from Cylinder Works, Moose Racing, and Wossner, complete with plating options for long life and easy installation. Compatible with top models like Yamaha YZ/WR250F, Kawasaki KX250F, KTM 85 SX, Husqvarna TC85, and Gas Gas MC85, these high-quality cylinders restore compression, increase displacement when paired with big-bore kits, and deliver reliable performance in dusty, high-heat conditions. Whether refreshing a scored cylinder or building a big-bore stroker, these components provide exact OEM tolerances or upgraded plating for superior wear resistance and championship-level power on every ride.
At JJ Motorsports, we stock the best dirt bike cylinders and kits from Cylinder Works, Moose Racing, and Wossner with fast shipping and expert support. Free shipping over $99!
Top Dirt Bike Cylinders & Kits
- Cylinder Works Standard Bore Cylinder 66.40mm Yamaha YZ250F/WR250F 20009 – OEM-spec replacement cylinder for Yamaha YZ250F and WR250F; ready for stock or big-bore piston, nickel-silicon carbide plating for ultimate wear resistance.
- Moose Racing Standard Cylinder Kawasaki KX250F MSE30012 – Direct OEM replacement cylinder for Kawasaki KX250F 2004-2016; precision-machined with plating for perfect fit and long life.
- Wossner Cylinder 47.00mm KTM/Husqvarna/Gas Gas 85 WBC8147A – High-performance cylinder for KTM 85 SX, Husqvarna TC85, and Gas Gas MC85; forged construction with advanced plating for 85cc 2-stroke power and durability.
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
-
LA Sleeve Cylinder Sleeve for Honda CR250R 2004 H5535
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5535, designed to restore performance and extend the life of your cylinders. Crafted with precision and durability in mind, this quality replacement sleeve ensures optimal fit and function,...09310152- SKU:
- 09310152
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 66.40 MM
- UNITS:
- EACH
$148.95 -
LA Sleeve Cylinder Sleeve 54mm Bore Honda CR125R 2005-2007 H5579
LA SLEEVE
$127.95Revitalize your engine with the LA SLEEVE H5579 Cylinder Sleeve, designed to restore performance and extend the life of your cylinders. Crafted from high-quality materials, these sleeves offer a perfect fit and exceptional durability, ensuring your...09310153- SKU:
- 09310153
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- UNITS:
- EACH
- BORE SIZE METRIC:
- 54.00 MM
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
$127.95 -
LA Sleeve Cylinder Sleeve 66.40mm Bore Honda CR250R 2005-2007 H5580
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5580, designed for superior performance and durability. These high-quality replacement sleeves are engineered to restore old cylinders, ensuring optimal functionality and longevity. Experience...09310154- SKU:
- 09310154
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 66.40 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$148.95 -
LA Sleeve Cylinder Sleeve for 2002-2006 Polaris 600 Models 77.25mm FL1289
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5592, designed for optimal performance and durability. This high-quality replacement sleeve ensures a perfect fit and restores the functionality of your old cylinders, making it an ideal choice...09310159- SKU:
- 09310159
- Availability:
- Ships Same Business Day
- Weight:
- 1.31 LBS
- BORE SIZE METRIC:
- 85.00 MM
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TYPE:
- AC
$117.95 -
LA Sleeve Cylinder Sleeve for Kawasaki KX100 2006-2013 KA5608
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5608, designed for precision fit and enhanced performance. This high-quality replacement sleeve ensures optimal sealing and durability, giving your old cylinders a fresh start. Engineered for...09310160- SKU:
- 09310160
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- TYPE:
- AC
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BORE SIZE METRIC:
- 52.50 MM
- COLOR/FINISH:
- CHROME
$117.95Qty in Cart: 0Quantity:Price:$117.95Subtotal: -
LA Sleeve Cylinder Sleeve Yamaha YZ125 2004-2021 YA5533
LA SLEEVE
$127.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve YA5533, designed for exceptional durability and performance. This high-quality replacement sleeve ensures a perfect fit, allowing your old cylinders to perform like new. Engineered with precision,...09310161- SKU:
- 09310161
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BORE SIZE METRIC:
- 54.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
$127.95 -
LA Sleeve Cylinder Sleeve 97mm Honda XR600R 1991-2000 H5159
LA SLEEVE
$131.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5159, designed for quality and precision. This replacement sleeve ensures optimal performance and durability, making it an essential component for engine rebuilds. Upgrade your old cylinders...09310318- SKU:
- 09310318
- Availability:
- Ships Same Business Day
- Weight:
- 2.48 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- BORE SIZE METRIC:
- 97.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
$131.95Qty in Cart: 0Quantity:Price:$131.95Subtotal: -
LA SLEEVE Cylinder Sleeve for Honda XR650R 2000-2007 H5440
LA SLEEVE
$131.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5440, designed to restore performance and extend the life of your cylinders. Crafted with precision, this high-quality replacement sleeve ensures a perfect fit and optimal durability, making it...09310319- SKU:
- 09310319
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- BORE SIZE METRIC:
- 100.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
$131.95 -
LA Sleeve Cylinder Sleeve 78mm AC Honda CRF250R 2005-2009 CRF250X 2005-2017 H5597
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5597, designed for exceptional durability and performance. This quality replacement sleeve provides a seamless fit for old cylinders, ensuring they operate like new. Upgrade your engine's...09310262- SKU:
- 09310262
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- BORE SIZE METRIC:
- 78.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
$117.95 -
L.A. Sleeve Cylinder Sleeve for Kawasaki KLX450R 2008-2009 KX450F 2006-2008 KA5607
LA SLEEVE
$127.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5607, designed for high performance and durability. Crafted from premium materials, this replacement sleeve ensures a perfect fit and optimal function, extending the life of your cylinders and...09310263- SKU:
- 09310263
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- BORE SIZE METRIC:
- 96.00 MM
- COLOR/FINISH:
- CHROME
$127.95 -
LA Sleeve Cylinder Sleeve for Kawasaki KX250 2019 KA5611
LA SLEEVE
$104.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5611, designed to enhance performance and extend the lifespan of your cylinders. Crafted from high-quality materials, these sleeves provide a reliable solution for restoring worn-out cylinders,...09310264- SKU:
- 09310264
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE SIZE METRIC:
- 77.00 MM
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
$104.95 -
LA Sleeve Cylinder Sleeve 54mm Bore 2007-2015 KTM 125 SX FL5692
LA SLEEVE
$132.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5692, designed to restore performance and extend the life of your old cylinders. Crafted with precision engineering, these sleeves provide a perfect fit and enhanced durability, ensuring your...09310638- SKU:
- 09310638
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- BORE SIZE METRIC:
- 54.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
$132.95 -
LA Sleeve Cylinder Sleeve for 2015-2020 Polaris Sportsman 850 FL5395
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5395, designed to restore performance and extend the life of your cylinders. Crafted with precision and durability in mind, this replacement sleeve ensures a perfect fit and optimal...09310643- SKU:
- 09310643
- Availability:
- Ships Same Business Day
- Weight:
- 1.21 LBS
- BORE SIZE METRIC:
- 87.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$117.95 -
LA Sleeve Cylinder Sleeve Yamaha YFM550 Grizzly 2009-2013 YA5690
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve YA5690, designed for optimal performance and durability. This high-quality replacement sleeve provides a seamless fit, ensuring that your engine runs smoothly and efficiently. Perfect for...09310646- SKU:
- 09310646
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- BORE SIZE METRIC:
- 92.00 MM
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- RS
$117.95 -
LA Sleeve Cylinder Sleeve for Honda CRF230F 2003-2019 H5491
LA SLEEVE
$90.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5491, designed for exceptional durability and performance. This high-quality replacement sleeve ensures a perfect fit, allowing your old cylinders to function like new. Engineered with precision,...09310515- SKU:
- 09310515
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- CHROME
- TYPE:
- CI
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 65.50 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$90.95 -
LA Sleeve Cylinder Sleeve for 1987-2006 Yamaha Banshee 350 YA5023
LA SLEEVE
$127.95Premium Replacement Cylinder Sleeves YA5023 Elevate your engine's efficiency with our Premium Replacement Cylinder Sleeves, meticulously engineered to provide superior performance and reliability. These sleeves are the ideal solution for restoring your...YA5023- SKU:
- YA5023
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 64.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- CI
- UNITS:
- EACH
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$127.95 -
L.A. SLEEVE Cylinder Sleeve for Yamaha YFM 350 1987-2010 YA5024
LA SLEEVE
$111.95Premium Replacement Cylinder Sleeves YA5024 Revamp your engine's performance with our Premium Replacement Cylinder Sleeves, engineered to breathe new life into your machinery. Crafted with precision and durability in mind, these sleeves are the ideal...YA5024- SKU:
- YA5024
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- BORE SIZE METRIC:
- 83.00 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TYPE:
- RS
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
$111.95 -
L.A. Sleeve Cylinder Sleeve for Yamaha Blaster 1988-2006 YA5035
LA SLEEVE
$127.95High-Performance Replacement Cylinder Sleeves - YA5035 Revitalize your engine's capabilities with our premium Replacement Cylinder Sleeves. Crafted for exceptional strength and reliability, these sleeves ensure your engine operates at peak performance...YA5035- SKU:
- YA5035
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- TYPE:
- CI
- UNITS:
- EACH
- BORE SIZE METRIC:
- 66.00 MM
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
$127.95 -
LA Sleeve Cylinder Sleeve for Yamaha YFM400 Big Bear 2000-2006 YA5231
LA SLEEVE
$111.95Premium Replacement Cylinder Sleeves - YA5231 Enhance your engine's efficiency with our Premium Replacement Cylinder Sleeves. Crafted for exceptional performance, these sleeves are the ideal choice for restoring worn-out cylinders, ensuring your engine...YA5231- SKU:
- YA5231
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 83.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- RS
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER SLEEVE
$111.95 -
LA Sleeve Cylinder Sleeve Yamaha YZ125 1994-1995 54mm Bore YA5257
LA SLEEVE
$131.95Premium Cylinder Sleeves - Model YA5257 Transform your engine's performance with our Premium Cylinder Sleeves. Crafted with precision and durability in mind, these sleeves offer an exceptional solution for restoring engine efficiency and extending the...YA5257- SKU:
- YA5257
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- BORE SIZE METRIC:
- 54.00 MM
$131.95
