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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VINTCO Main Bearing and Seal Kit - Yamaha KMB024
VINTCO
$20.95Main Bearing and Seal Kit - KMB024 Complete set for crankshaft installation Includes high-quality bearings and seals Manufactured in Japan for superior performance Designed specifically for Yamaha engines Ensures optimal engine...09240678- SKU:
- 09240678
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
$20.95 -
VINTCO Main Bearing and Seal Kit - Yamaha KMB029
VINTCO
$39.95Main Bearing and Seal Kit - Yamaha Includes necessary bearings and seals to complete crankshaft installation, Includes premium OEM quality Japanese manufactured bearings09240679- SKU:
- 09240679
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 LBS
$39.95 -
PROX Crankshaft Bearing/Seal Kit - Honda 23.CBS14005
PROX
$129.95Crankshaft Bearing/Seal Kit - Honda Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings offer high...09240701- SKU:
- 09240701
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
$129.95 -
PROX Crankshaft Bearing/Seal Kit - Kawasaki 23.CBS43051
PROX
$99.95Crankshaft Bearing/Seal Kit - Kawasaki Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings offer high...09240702- SKU:
- 09240702
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$99.95 -
PROX Crankshaft Bearing/Seal Kit - KTM 23.CBS60001
PROX
$35.95Crankshaft Bearing/Seal Kit - KTM Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings offer high durability...09240703- SKU:
- 09240703
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$35.95 -
PROX Crankshaft Bearing/Seal Kit - KTM 23.CBS60009
PROX
$39.95Crankshaft Bearing/Seal Kit - KTM Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings offer high durability...09240704- SKU:
- 09240704
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
$39.95 -
PROX Crankshaft Bearing/Seal Kit - Husaberg/Husqvarna/KTM 23.CBS63013
PROX
$175.95Crankshaft Bearing/Seal Kit - Husaberg/Husqvarna/KTM Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings...09240705- SKU:
- 09240705
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
$175.95 -
PROX Crankshaft Bearing/Seal Kit - Husqvarna/KTM 23.CBS63016
PROX
$169.95Crankshaft Bearing/Seal Kit - Husqvarna/KTM Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings offer high...09240706- SKU:
- 09240706
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$169.95 -
PROX Crankshaft Bearing/Seal Kit - KTM 23.CBS64007
PROX
$159.95Crankshaft Bearing/Seal Kit - KTM Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings offer high durability...09240708- SKU:
- 09240708
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$159.95 -
PROX Crankshaft Bearing/Seal Kit - Husaberg/Husqvarna/KTM 23.CBS64012
PROX
$89.95Crankshaft Bearing/Seal Kit - Husaberg/Husqvarna/KTM Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings...09240709- SKU:
- 09240709
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$89.95 -
PROX Crankshaft Bearing/Seal Kit - Gas-Gas/Husqvarna/KTM 23.CBS64016
PROX
$159.95Crankshaft Bearing/Seal Kit - Gas-Gas/Husqvarna/KTM Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings...09240710- SKU:
- 09240710
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$159.95 -
PROX Crankshaft Bearing/Seal Kit - Beta 23.CBS73013
PROX
$69.95Crankshaft Bearing/Seal Kit - Beta Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings offer high...09240711- SKU:
- 09240711
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
$69.95 -
PROX Crankshaft Bearing/Seal Kit - Beta 23.CBS73022
PROX
$115.95Crankshaft Bearing/Seal Kit - Beta Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings offer high...09240712- SKU:
- 09240712
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$115.95 -
PROX Crankshaft Bearing/Seal Kit - Beta 23.CBS73050
PROX
$99.95Crankshaft Bearing/Seal Kit - Beta Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings offer high...09240713- SKU:
- 09240713
- Availability:
- Ships Same Business Day
- Weight:
- 1.36 LBS
$99.95 -
PROX Crankshaft Bearing/Seal Kit - Gas Gas/Husqvarna/KTM 23.CBS63017
PROX
$159.95Crankshaft Bearing/Seal Kit - Gas Gas/Husqvarna/KTM Manufactured at leading OEM factories, Made to exact OEM specifications, to ensure maximum quality and performance, Includes all necessary bearings/seals for a component*s replacement, ProX bearings...09240707- SKU:
- 09240707
- Availability:
- Ships Same Business Day
- Weight:
- 1.03 LBS
$159.95 -
MOOSE RACING Crank Bearing GAS EC 24-1118
MOOSE RACING
$89.95MOOSE RACING Crank Bearing GAS EC 24-1118Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines09240603- SKU:
- 09240603
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- CRANKSHAFT
- TYPE:
- BALL
- RIDING STYLE:
- STREET
$89.95Qty in Cart: 0Quantity:Price:$89.95Subtotal: -
MOOSE RACING Crank Bearing - YZ 65/85 24-1117
MOOSE RACING
$53.95MOOSE RACING Crank Bearing YZ 65/85 24-1117Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines09240604- SKU:
- 09240604
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- PRODUCT NAME:
- BEARING
- UNITS:
- KIT
- APPLICATION:
- CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- BALL
$53.95 -
MOOSE RACING Crank Bearing - KXF/RMZ 24-1081
MOOSE RACING
$56.95MOOSE RACING Crank Bearing KXF/RMZ 24-1081Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines09240103- SKU:
- 09240103
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- BALL
- APPLICATION:
- CRANKSHAFT
$56.95 -
MOOSE RACING Crank Bearing - Husqvarna 24-1107
MOOSE RACING
$74.95MOOSE RACING Crank Bearing Husqvarna 24-1107Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines09240228- SKU:
- 09240228
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- APPLICATION:
- CRANKSHAFT
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- BALL
$74.95 -
MOOSE RACING Crank Bearing - Husqvarna 24-1108
MOOSE RACING
$77.95MOOSE RACING Crank Bearing Husqvarna 24-1108Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines09240229- SKU:
- 09240229
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- CRANKSHAFT
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
- RIDING STYLE:
- STREET
$77.95
