Dirt Bike Engine Bearings
Dirt Bike Engine Bearings & Crank Bearing Kits for Yamaha, Honda & Beta at JJ Motorsports
Rebuild your dirt bike's bottom end with premium crankshaft bearings, needle bearings, and complete seal kits from JJ Motorsports — precision-engineered for perfect fit, reduced friction, and extreme durability in motocross, enduro, and trail riding. Our selection includes high-quality main bearings, crank bearing/seal kits, and needle bearings designed to handle high RPM, high heat, and heavy loads while restoring smooth, quiet operation. Compatible with top models like Yamaha YZ/WR, Honda CRF/CR, Beta RR, and more, these components from trusted brands deliver OEM or better performance with upgraded materials that outlast stock bearings in dusty, abusive conditions. Whether you're splitting the cases for a full rebuild or just replacing worn mains, these kits give you everything — bearings, seals, and gaskets — for factory-fresh feel and championship-level reliability.
At JJ Motorsports, we stock the best dirt bike engine bearings and crank kits from Moose Racing, Shindy, and Vintco with fast shipping and expert support. Free shipping over $99!
Top Dirt Bike Engine Bearings & Kits
- Shindy Needle Bearing 16 mm x 21 mm x 23 mm Yamaha 10-301 – High-quality needle bearing for Yamaha models; exact OEM spec for shock linkage and swingarm applications.
- Moose Offroad Crank Bearing & Seal Kit Beta 24-1128 – Complete crank bearing and seal kit for Beta RR models; includes both sides for full bottom-end refresh.
- Vintco Main Bearing and Seal Kit Honda KMB034 – Premium main bearing and crank seal kit for vintage Honda models; perfect for classic CR and XR restoration with modern durability.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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HOT RODS Crank Bearings K055
HOT RODS
$104.95Precision, high-quality main bearing and seal kits complement installation of Hot Rods crankshaft assemblies09240165- SKU:
- 09240165
- Availability:
- Ships Same Business Day
- Weight:
- 0.92 LBS
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
- UNITS:
- SET
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
$104.95Qty in Cart: 0Quantity:Price:$104.95Subtotal: -
HOT RODS Crank Bearings K056
HOT RODS
$77.95Precision, high-quality main bearing and seal kits complement installation of Hot Rods crankshaft assemblies09240166- SKU:
- 09240166
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- MAIN CRANKSHAFT
- TYPE:
- BALL
- UNITS:
- SET
- RIDING STYLE:
- STREET
$77.95 -
HOT RODS Crank Bearings K052
HOT RODS
$86.95Precision, high-quality main bearing and seal kits complement installation of Hot Rods crankshaft assemblies09240167- SKU:
- 09240167
- Availability:
- Ships Same Business Day
- Weight:
- 1.03 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
$86.95 -
HOT RODS Crank Bearings K044
HOT RODS
$97.95Precision, high-quality main bearing and seal kits complement installation of Hot Rods crankshaft assemblies09240168- SKU:
- 09240168
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
$97.95 -
HOT RODS Crank Bearings K045
HOT RODS
$72.95Precision, high-quality main bearing and seal kits complement installation of Hot Rods crankshaft assemblies09240169- SKU:
- 09240169
- Availability:
- Ships Same Business Day
- Weight:
- 0.89 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- BALL
$72.95 -
HOT RODS Crank Bearings K041
HOT RODS
$77.95Precision, high-quality main bearing and seal kits complement installation of Hot Rods crankshaft assemblies09240116- SKU:
- 09240116
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$77.95 -
HOT RODS Crank Bearings K048
HOT RODS
$109.95Precision, high-quality main bearing and seal kits complement installation of Hot Rods crankshaft assemblies09240119- SKU:
- 09240119
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$109.95 -
HOT RODS Crank Bearings K058
HOT RODS
$107.95Precision, high-quality main bearing and seal kits complement installation of Hot Rods crankshaft assemblies09240126- SKU:
- 09240126
- Availability:
- Ships Same Business Day
- Weight:
- 1.62 LBS
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
- UNITS:
- SET
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
$107.95 -
HOT RODS Crank Bearings K093
HOT RODS
$147.95Seal kits complement installation of Hot Rods crankshaft assemblies09240402- SKU:
- 09240402
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BEARING SET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$147.95 -
HOT RODS Crank Bearings K089
HOT RODS
$75.95Seal kits complement installation of Hot Rods crankshaft assemblies09240403- SKU:
- 09240403
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- PRODUCT NAME:
- BEARING SET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$75.95 -
Wiseco Top End Bearing 12x16x15.8 Kawasaki KFX50 2003-2009 B1000
WISECO
$23.99Engineered for performance, the WISECO Top End Bearing B1000 is crafted from a premium high-silicon aluminum alloy, ensuring exceptional strength and durability. Designed to meet the rigorous demands of high-speed engines, these bearings provide smooth...B1000- SKU:
- B1000
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- APPLICATION:
- PISTON
- INSIDE DIAMETER METRIC:
- 12 MM
- MATERIAL:
- SILICONE
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- ALUMINUM
- LENGTH METRIC:
- 15.8 MM
- OUTSIDE DIAMETER METRIC:
- 16 MM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- UNITS:
- EACH
$23.99 -
Wiseco Top End Bearing for Suzuki LT250R QuadRacer 1985-1992 B1002
WISECO
$23.99Engineered for performance and durability, the WISECO Top End Bearing B1002 is crafted from a premium high-silicon aluminum alloy. This ensures exceptional strength and reliability, making it ideal for high-speed engine applications. Designed to meet...B1002- SKU:
- B1002
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- PISTON
- INSIDE DIAMETER METRIC:
- 18 MM
- MATERIAL:
- ALUMINUM
- MATERIAL:
- SILICONE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- OUTSIDE DIAMETER METRIC:
- 23 MM
- LENGTH METRIC:
- 23.8 MM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- UNITS:
- EACH
$23.99 -
Wiseco Top End Bearing Yamaha YFZ350 Banshee 1987-2006 B1005
WISECO
$23.99Engineered for peak performance, the WISECO Top End Bearing B1005 is crafted from a premium high-silicon aluminum alloy, ensuring unparalleled strength and reliability. Designed to withstand the rigors of high-speed operation, these bearings are...B1005- SKU:
- B1005
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- LENGTH METRIC:
- 22.5 MM
- PRODUCT NAME:
- BEARING
- MATERIAL:
- ALUMINUM
- OUTSIDE DIAMETER METRIC:
- 21 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- UNITS:
- EACH
- APPLICATION:
- PISTON
- INSIDE DIAMETER METRIC:
- 16 MM
- MATERIAL:
- SILICONE
$23.99 -
Wiseco Top End Bearing Kawasaki KX85 2001-2024 B1006
WISECO
$23.99Engineered for peak performance, the WISECO Top End Bearing B1006 is crafted from a premium high-silicon aluminum alloy, ensuring exceptional strength and reliability. Designed to meet the rigorous demands of high-speed engines, these bearings provide...B1006- SKU:
- B1006
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- LENGTH METRIC:
- 17.5 MM
- MATERIAL:
- ALUMINUM
- OUTSIDE DIAMETER METRIC:
- 18 MM
- TYPE:
- TOP END
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 14 MM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- PISTON
- MATERIAL:
- SILICONE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$23.99 -
Wiseco Top End Bearing Kawasaki KDX200 1986-2006 B1008
WISECO
$23.99Engineered for peak performance, the WISECO Top End Bearing B1008 is crafted from a high-silicon aluminum alloy, ensuring exceptional strength and reliability. These premium bearings are precision-manufactured to meet stringent standards, providing...B1008- SKU:
- B1008
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- TYPE:
- TOP END
- APPLICATION:
- PISTON
- MATERIAL:
- SILICONE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- BEARING
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 18 MM
- LENGTH METRIC:
- 22 MM
- MATERIAL:
- ALUMINUM
- OUTSIDE DIAMETER METRIC:
- 22 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
$23.99Qty in Cart: 0Quantity:Price:$23.99Subtotal: -
Wiseco Top End Bearing 15x19x20 KTM 125 SX 1998-2021 B1013
WISECO
$23.99Engineered for performance, the WISECO Top End Bearing B1013 utilizes a high-silicon aluminum alloy, ensuring exceptional strength and reliability. These premium bearings are meticulously crafted to meet stringent standards, providing smooth operation...B1013- SKU:
- B1013
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- LENGTH METRIC:
- 19.8 MM
- APPLICATION:
- PISTON
- MATERIAL:
- SILICONE
- OUTSIDE DIAMETER METRIC:
- 19 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- INSIDE DIAMETER METRIC:
- 15 MM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
$23.99 -
Wiseco Top End Bearing Arctic Cat Cheetah 500 F/C 1986-1988 B1014
WISECO
$23.99Engineered for performance, the WISECO Top End Bearing B1014 is crafted from a premium high-silicon aluminum alloy, ensuring exceptional strength and reliability. These bearings are precision-manufactured to meet the highest industry standards, featuring...B1014- SKU:
- B1014
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- APPLICATION:
- PISTON
- INSIDE DIAMETER METRIC:
- 18 MM
- MATERIAL:
- SILICONE
- LENGTH METRIC:
- 22 MM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- OUTSIDE DIAMETER METRIC:
- 23 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
$23.99 -
HOT RODS Crankshaft Bearings - Honda K095
HOT RODS
$79.95Replacement crankshaft main bearing and seal kit., A quality alternative to expensive OEM bearings and seals.09240599- SKU:
- 09240599
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- APPLICATION:
- CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- ENGINE
$79.95 -
HOT RODS Top End Bearing WB102
HOT RODS
$19.95Top-quality needle-cage bearing for the piston end of the rod09240567- SKU:
- 09240567
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- WRIST PIN
- PRODUCT NAME:
- BEARING
- UNITS:
- EACH
- APPLICATION:
- CONNECTING ROD
- RIDING STYLE:
- OFF-ROAD
$19.95Qty in Cart: 0Quantity:Price:$19.95Subtotal: -
HOT RODS Crank Bearings K068
HOT RODS
$123.95Precision, high-quality main bearing and seal kits complement installation of Hot Rods crankshaft assemblies09240235- SKU:
- 09240235
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- BALL
$123.95
