Dirt Bike Drivetrain
Dirt Bike Drivetrain Parts at JJ Motorsports
Enhance your dirt bike’s power transfer with premium drivetrain parts from JJ Motorsports. Find heavy-duty chains, front and rear sprockets, and clutch components designed to withstand intense riding demands. Combine these with other motocross gear and parts to maximize acceleration and ride efficiency on the track or trail.
Shop trusted brands like JT Chains for sealed chains and Renthal for ultralight sprockets. Explore related categories such as Dirt Bike Engine Parts for power upgrades or Dirt Bike Exhaust for complete tuning.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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ACERBIS Complete Chain Guide Block - Kawasaki - Green 2410970006
ACERBIS
$87.95Two-piece design for easy mounting without chain removal, Constructed of PA6 nylon for high-resistance to chain-wear and shock, Material will not bend in event of collision or contact with roost12310673- SKU:
- 12310673
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- BLOCK
- COLOR/FINISH:
- GREEN
- PRODUCT NAME:
- CHAIN GUIDE
$87.95 -
ACERBIS Complete Chain Guide Block - Suzuki - Black 2410980001
ACERBIS
$87.95Two-piece design for easy mounting without chain removal, Constructed of PA6 nylon for high-resistance to chain-wear and shock, Material will not bend in event of collision or contact with roost12310674- SKU:
- 12310674
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- BLOCK
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CHAIN GUIDE
$87.95 -
ACERBIS Complete Chain Guide Block - Suzuki - Yellow 2410980005
ACERBIS
$87.95Two-piece design for easy mounting without chain removal, Constructed of PA6 nylon for high-resistance to chain-wear and shock, Material will not bend in event of collision or contact with roost12310676- SKU:
- 12310676
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- COLOR/FINISH:
- YELLOW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- BLOCK
- UNITS:
- EACH
- PRODUCT NAME:
- CHAIN GUIDE
$87.95 -
ACERBIS Complete Chain Guide Block - Yamaha - Black 2410990001
ACERBIS
$87.95Two-piece design for easy mounting without chain removal, Constructed of PA6 nylon for high-resistance to chain-wear and shock, Material will not bend in event of collision or contact with roost12310677- SKU:
- 12310677
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- PRODUCT NAME:
- CHAIN GUIDE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- TYPE:
- BLOCK
$87.95 -
Sunstar 14-Tooth Front Sprocket for 2018-2021 Honda CRF250R 3G414
SUNSTAR SPROCKETS
$33.95Experience unparalleled performance with the SUNSTAR 14-Tooth Countershaft Sprocket, expertly crafted to meet the rigorous demands of both casual riders and competitive racers. Built with high-quality materials and advanced surface treatments, this...12121565- SKU:
- 12121565
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- TOOTH COUNT:
- 14
$33.95 -
WORKS CONNECTION Elite Axle Block - Red 17-225
WORKS CONNECTION
$76.95Ultra slim, precision CNC-machined from 6061-T6 billet aluminum, Tighter tolerances than OEM parts to help ensure accurate alignment of the rear wheel, prolonging chain and sprocket life, Reversible design keeps adjustment bolts from extending beyond...12311015- SKU:
- 12311015
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- AXLE BLOCK
- COLOR/FINISH:
- ANODIZED
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$76.95 -
MOOSE RACING 520 HPO - O-Ring Chain - 96 PLT M573-00-96
MOOSE RACING
$94.95O-ring chain, Extra-high-tensile-strength link plates, Rust-resistant nickel-plated side plates, Vacuum-injected greased chain, Solid bushings, Recommended for applications between 350-450cc, Clip-type connecting link included, Replacement connecting...M5730096- SKU:
- M5730096
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
- CHAIN SIZE:
- 520
- CHAIN TYPE:
- 520 HPO
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- MASTER LINK CONNECTOR:
- CLIP
- MODEL:
- HPO SERIES
- NUMBER OF LINKS:
- 96
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- NATURAL
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 450 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- O-RING
- TENSILE STRENGTH IMPERIAL:
- 7496 LB
- TENSILE STRENGTH METRIC:
- 33.3 KN
- UNITS:
- EACH
$94.95 -
BOLT Chain Adjuster Kit 2006-CH
BOLT
$5.99Fits all stock applications that use 8mm bolt (most off-road and street models), Made in the U.S.A., Sold as pack12310387- SKU:
- 12310387
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CHAIN ADJUSTER
- PRODUCT NAME:
- BOLT
- UNITS:
- KIT
- COLOR/FINISH:
- STAINLESS STEEL
$5.99 -
BOLT Thread Chaser Kit TC-M6M8
BOLT
$4.99Designed to clean and re-cut damaged aluminum threads, Removes dirt and metal shavings that become captured in the thread groove, Contains the two sizes most common on metric motorcycles, M6x1.0 and M8x1.25, Uses 8mm or 10mm hex socket12310558- SKU:
- 12310558
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- RED
- TYPE:
- DRIVE CHAIN
- UNITS:
- KIT
- COLOR/FINISH:
- ANODIZED
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- THREAD CHASER
$4.99 -
ATHENA Transmission Belt S410000350008
ATHENA
$21.95Performance-matched drive belts are specifically designed to handle the power supplied by Athena's big bore kits for scooters11420034- SKU:
- 11420034
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- FLAT-TOP
- COLOR/FINISH:
- BLACK
- STYLE:
- RIBBED
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$21.95Qty in Cart: 0Quantity:Price:$21.95Subtotal: -
ATHENA Transmission Belt - 15.2 x 8.7 x 640 S410000350003
ATHENA
$19.95Manufactured to exact length and tolerances as the OE belts, Constructed of the latest materials to meet or exceed OEM quality and performance, Minimize clutch slippage and wear12040068- SKU:
- 12040068
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- BELT
- COG HEIGHT:
- 15.2 MM
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
$19.95 -
ATHENA Transmission Belt - 16.8 x 8.5 x 837 S410000350009
ATHENA
$20.95Manufactured to exact length and tolerances as the OE belts, Constructed of the latest materials to meet or exceed OEM quality and performance, Minimize clutch slippage and wear12040070- SKU:
- 12040070
- Availability:
- Ships Same Business Day
- Weight:
- 0.43 LBS
- COG HEIGHT:
- 16.8 MM
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
$20.95 -
ATHENA Transmission Belt - 18.5 x 9 x 814 S410000350015
ATHENA
$22.95Manufactured to exact length and tolerances as the OE belts, Constructed of the latest materials to meet or exceed OEM quality and performance, Minimize clutch slippage and wear12040072- SKU:
- 12040072
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- COG HEIGHT:
- 18,5 MM
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$22.95 -
ATHENA Transmission Belt - 20 x 10 x 800 S410000350028
ATHENA
$23.95Manufactured to exact length and tolerances as the OE belts, Constructed of the latest materials to meet or exceed OEM quality and performance, Minimize clutch slippage and wear12040075- SKU:
- 12040075
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- COG HEIGHT:
- 20 MM
- TYPE:
- TRANSMISSION
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BELT
$23.95 -
ATHENA Transmission Belt - 17.7 x 8.5 x 729 S410000350033
ATHENA
$21.95Manufactured to exact length and tolerances as the OE belts, Constructed of the latest materials to meet or exceed OEM quality and performance, Minimize clutch slippage and wear12040076- SKU:
- 12040076
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- COG HEIGHT:
- 17,7 MM
- UNITS:
- EACH
- PRODUCT NAME:
- BELT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
$21.95 -
ATHENA Primary Gear Set 057115
ATHENA
$115.95Primary gear sets feature a higher gear ration than stock 22%-33% depending on model) for higher top-end speed11060005- SKU:
- 11060005
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- PRODUCT NAME:
- GEAR SET
- STYLE:
- CLOSE RATIO
- RIDING STYLE:
- STREET
- STYLE:
- PERFORMANCE REPLACEMENT
- UNITS:
- EACH
- TYPE:
- PRIMARY GEAR
$115.95 -
ATHENA Clutch Weight - 5g S41000030P017
ATHENA
$15.95Clutch weights allow for fine-tuning of clutch engagement11320110- SKU:
- 11320110
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- UNITS:
- 6 PACK
- PRODUCT NAME:
- WEIGHT
- TYPE:
- CLUTCH
$15.95 -
ATHENA Clutch Weight - 5.5g S41000030P018
ATHENA
$15.95Clutch weights allow for fine-tuning of clutch engagement11320111- SKU:
- 11320111
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 6 PACK
- COLOR/FINISH:
- YELLOW
- PRODUCT NAME:
- WEIGHT
- TYPE:
- CLUTCH
$15.95 -
ATHENA Clutch Weight - 7.6g S41000030P020
ATHENA
$15.95Clutch weights allow for fine-tuning of clutch engagement11320112- SKU:
- 11320112
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- COLOR/FINISH:
- PURPLE
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- UNITS:
- 6 PACK
- PRODUCT NAME:
- WEIGHT
$15.95 -
ATHENA Transmission Belt - 18 x 8.5 x 771 S410000350037
ATHENA
$31.95Manufactured to exact length and tolerances as the OE belts, Constructed of the latest materials to meet or exceed OEM quality and performance, Minimize clutch slippage and wear12040079- SKU:
- 12040079
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- COG HEIGHT:
- 18 MM
- PRODUCT NAME:
- BELT
- TYPE:
- TRANSMISSION
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$31.95
