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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Wiseco Top End Bearing Kawasaki KX85 2001-2024 B1006
WISECO
$25.95The Wiseco Top End Bearing B1006 is engineered to handle the extreme demands of high-revving two-stroke engines found in competitive KX85 platforms. A worn or substandard bearing will compromise piston speed consistency, increase friction losses, and...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
$25.95 -
Wiseco Top End Bearing 15x19x20 KTM 125 SX 1998-2021 B1013
WISECO
$25.95The Wiseco B1013 top end bearing is engineered to handle the demands of high-RPM two-stroke performance, delivering reliability when your KTM 125 SX is pushed to its limits. Precision-manufactured with a case-hardened, high-silicon aluminum construction,...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
$25.95 -
Wiseco Top End Bearing Arctic Cat Cheetah 500 F/C 1986-1988 B1014
WISECO
$25.95The Wiseco B1014 top end bearing is engineered to handle sustained high-RPM operation without compromising reliability—critical for both competitive racing and demanding recreational riding on your Arctic Cat Cheetah 500. A precision-manufactured,...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
$25.95 -
HOT RODS Crankshaft Bearings - Honda K095
HOT RODS
$85.95Worn crankshaft bearings compromise engine reliability and can lead to catastrophic failure if left unchecked. The HOT RODS K095 Crankshaft Bearings kit delivers OEM-quality performance at a fraction of the cost, restoring proper clearances and...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
$85.95 -
HOT RODS Top End Bearing WB102
HOT RODS
$21.95The piston end of your connecting rod demands precision engineering to handle extreme reciprocating forces without wear or failure. A quality needle-cage bearing like the HOT RODS WB102 reduces friction at the wrist pin interface, directly improving...09240567- 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
$21.95 -
HOT RODS Crank Bearings K068
HOT RODS
$133.95A crankshaft assembly is only as reliable as its bearing package. The HOT RODS K068 Crank Bearings deliver precision-engineered main bearing and seal kits that eliminate guesswork during installation and ensure proper load distribution under extreme...09240235- 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
$133.95Qty in Cart: 0Quantity:Price:$133.95Subtotal: -
HOT RODS Crank Bearings K007
HOT RODS
$62.95A crankshaft is only as reliable as its bearing system. The HOT RODS K007 crank bearing kit delivers the precision tolerances and seal integrity required to handle sustained high-RPM loads without compromise. Whether you're rebuilding a race engine or...09240245- SKU:
- 09240245
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- MAIN CRANKSHAFT
- UNITS:
- KIT
- TYPE:
- BALL
$62.95 -
HOT RODS Crank Bearings K070
HOT RODS
$100.95A crankshaft is only as reliable as its bearing package. The HOT RODS K070 crank bearing kit delivers precision-engineered main bearings and seals that eliminate play, reduce friction, and ensure consistent oil pressure across the entire stroke. Whether...09240246- SKU:
- 09240246
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- TYPE:
- BALL
- UNITS:
- SET
- APPLICATION:
- MAIN CRANKSHAFT
$100.95 -
HOT RODS Crank Bearings K074
HOT RODS
$118.95A crankshaft is only as reliable as its bearings. The HOT RODS K074 crank bearing kit delivers precision-engineered main bearing and seal components designed to handle the demanding loads of high-performance engines. Whether you're rebuilding a race...09240283- SKU:
- 09240283
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
$118.95Qty in Cart: 0Quantity:Price:$118.95Subtotal: -
HOT RODS Crank Bearings K083
HOT RODS
$45.95A crankshaft is only as reliable as its bearings. The HOT RODS K083 Crank Bearings deliver the precision fit and durability required for high-RPM applications, whether you're rebuilding a stock engine or pushing forced induction limits. These bearings...09240286- SKU:
- 09240286
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$45.95 -
HOT RODS Crank Bearings K090
HOT RODS
$82.95A crankshaft is only as reliable as its bearing seals. The HOT RODS K090 Crank Bearings Seal Kit ensures proper fluid retention and contamination protection during and after installation of your HOT RODS crankshaft assembly, preventing premature wear and...09240399- SKU:
- 09240399
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING SET
- RIDING STYLE:
- STREET
$82.95Qty in Cart: 0Quantity:Price:$82.95Subtotal: -
HOT RODS Crank Bearings K091
HOT RODS
$83.95A quality crankshaft assembly is only as reliable as its sealing system. The HOT RODS Crank Bearings K091 seal kit provides the critical barrier between your engine's internal lubrication and external contaminants, ensuring consistent oil pressure and...09240400- SKU:
- 09240400
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- PRODUCT NAME:
- BEARING SET
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$83.95 -
HOT RODS Crank Bearings K092
HOT RODS
$165.95A quality crankshaft seal kit is non-negotiable if you're installing a Hot Rods crank assembly—it ensures critical oil containment and prevents leakage that could compromise engine performance or cause catastrophic failure. The K092 seal kit is...09240401- SKU:
- 09240401
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BEARING SET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$165.95 -
HOT RODS Top End Bearing WB110
HOT RODS
$21.95The piston end of your connecting rod endures extreme reciprocating forces at high RPM, and bearing failure means catastrophic engine damage. The HOT RODS Top End Bearing WB110 delivers the needle-cage precision and load-carrying capacity your engine...09240570- SKU:
- 09240570
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- WRIST PIN
- PRODUCT NAME:
- BEARING
- APPLICATION:
- CONNECTING ROD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$21.95 -
HOT RODS Top End Bearing WB111
HOT RODS
$21.95The HOT RODS Top End Bearing WB111 is engineered to handle extreme pressures at the piston end of your connecting rod, where combustion forces peak thousands of times per minute. A quality needle-cage bearing here directly reduces friction loss, extends...09240571- SKU:
- 09240571
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- CONNECTING ROD
- UNITS:
- EACH
- TYPE:
- WRIST PIN
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- BEARING
$21.95 -
HOT RODS Top End Bearing WB117
HOT RODS
$22.95The HOT RODS Top End Bearing WB117 is engineered to handle the extreme oscillating loads at the piston pin junction, where metal-to-metal contact and friction can quickly degrade performance and reliability. A precision needle-cage bearing at this...09240572- SKU:
- 09240572
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- APPLICATION:
- CONNECTING ROD
- UNITS:
- EACH
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WRIST PIN
$22.95 -
HOT RODS Top End Bearing WB118
HOT RODS
$22.95A quality top-end bearing is critical to extending rod life and maintaining consistent power delivery under sustained high RPM operation. The HOT RODS WB118 needle-cage bearing is engineered for the piston end of the rod, where precision tolerances and...09240573- SKU:
- 09240573
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- WRIST PIN
- UNITS:
- EACH
- APPLICATION:
- CONNECTING ROD
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
$22.95Qty in Cart: 0Quantity:Price:$22.95Subtotal: -
HOT RODS Top End Bearing WB128
HOT RODS
$22.95The HOT RODS Top End Bearing WB128 is engineered for the high-stress piston end of your connecting rod, where precision and durability directly impact engine reliability and performance. A quality needle-cage bearing at this critical junction reduces...09240575- SKU:
- 09240575
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- CONNECTING ROD
- PRODUCT NAME:
- BEARING
- TYPE:
- WRIST PIN
$22.95 -
HOT RODS Top End Bearing WB139
HOT RODS
$19.95The piston end of your connecting rod demands precision engineering to handle extreme reciprocating forces and temperature cycling. A worn or substandard needle-cage bearing here directly compromises engine reliability, power delivery, and component...09240576- SKU:
- 09240576
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- CONNECTING ROD
- TYPE:
- WRIST PIN
$19.95 -
HOT RODS Top End Bearing WB143
HOT RODS
$19.95The connecting rod is one of the most mechanically stressed components in any engine, transmitting enormous forces between the piston and crankshaft thousands of times per minute. A quality top-end bearing like the HOT RODS WB143 is essential for...09240577- SKU:
- 09240577
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- CONNECTING ROD
- UNITS:
- EACH
- TYPE:
- WRIST PIN
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
$19.95
