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
-
Renthal Twinring 50-Tooth Rear Sprocket Black 1230-520-50GPBK
RENTHAL
$142.50If you're running a 520 chain setup and demand sprocket durability without sacrificing weight, the Renthal Twinring 50-tooth rear sprocket delivers the engineering to back it up. The hybrid construction—7075 T-6 aluminum inner ring bonded with an...12100808- SKU:
- 12100808
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
$142.50 -
Renthal TwinRing Rear Sprocket 50T Black 1500-520-50GPBK
RENTHAL
$142.50If you're running a demanding off-road program, your rear sprocket takes a beating—mud, impacts, and constant chain stress test durability limits fast. The Renthal TwinRing 50T combines a lightweight aluminum core with a hardened steel outer ring,...12100810- SKU:
- 12100810
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$142.50 -
Renthal TwinRing Rear Sprocket 48T Black 520 Pitch 1540-520-48GPBK
RENTHAL
$142.50If you're running a 520 chain and demand sprocket durability that won't compromise your bike's weight, the Renthal TwinRing rear sprocket delivers the performance advantage you need. The dual-ring construction—pairing a lightweight 7075 T-6 aluminum...12100811- SKU:
- 12100811
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$142.50 -
Renthal TwinRing Rear Sprocket 49T Black 520 Chain 1540-520-49GPBK
RENTHAL
$142.50If you're running a 520 chain setup and need a rear sprocket that can handle the punishment of off-road riding without adding unnecessary weight, the Renthal TwinRing delivers durability where it counts. The dual-material construction—ultralight 7075 T-6...12100812- SKU:
- 12100812
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- TYPE:
- DRIVE
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$142.50Qty in Cart: 0Quantity:Price:$142.50Subtotal: -
Renthal Twinring Rear Sprocket 50T Black 1540-520-50GPBK
RENTHAL
$142.50If you're running a 520 chain on your off-road machine, sprocket wear directly impacts throttle response, chain longevity, and overall drivetrain reliability. The Renthal Twinring 50T delivers the durability of steel with the weight savings of aluminum—a...12100813- SKU:
- 12100813
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$142.50 -
Renthal TwinRing Rear Sprocket 51T Black 1540-520-51GPBK
RENTHAL
$142.50If you're running a 520 chain setup, sprocket wear directly impacts your acceleration response and chain longevity. The Renthal TwinRing 51T delivers the durability of a steel sprocket with the weight savings of aluminum—a combination that standard...12100814- SKU:
- 12100814
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
$142.50Qty in Cart: 0Quantity:Price:$142.50Subtotal: -
Renthal Twinring Rear Sprocket 52T Black 2240-520-52GPBK
RENTHAL
$142.50If you're running hard on the track or tackling technical terrain, sprocket durability directly impacts your power delivery and lap times. The Renthal Twinring rear sprocket combines lightweight aluminum with hardened steel in a permanent bond that...12100817- SKU:
- 12100817
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 52
- TYPE:
- DRIVE
$142.50 -
Renthal TwinRing Rear Sprocket 50T Blue 1500-520-50GPBU
RENTHAL
$149.98If you're running a 520 chain setup and need a sprocket that won't sacrifice strength for weight, the Renthal TwinRing 50T delivers the durability of steel with the lightweight advantage of aerospace-grade aluminum. The hybrid construction—combined with...12100819- SKU:
- 12100819
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- TYPE:
- DRIVE
- COLOR/FINISH:
- BLUE
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$149.98Qty in Cart: 0Quantity:Price:$149.98Subtotal: -
Renthal Twinring Rear Sprocket 48T Red 520 Chain 1540-520-48GPRD
RENTHAL
$149.98Rear sprocket selection directly impacts your bike's acceleration, top-end speed, and drivetrain wear patterns—choosing the right tooth count and construction quality is non-negotiable for consistent performance. The Renthal Twinring rear sprocket...12100820- SKU:
- 12100820
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 LBS
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RED
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$149.98 -
Renthal TwinRing Rear Sprocket 51T Red 520 Chain 1540-520-51GPRD
RENTHAL
$149.98The Renthal TwinRing rear sprocket delivers the durability and lightweight performance needed for demanding off-road conditions. Its dual-ring construction—combining Ultralight™ 7075 T-6 aluminum with electro-less nickel-coated steel—withstands chain...12100823- SKU:
- 12100823
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RED
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$149.98Qty in Cart: 0Quantity:Price:$149.98Subtotal: -
Renthal Twinring Rear Sprocket 50T Orange 2240-520-50GPOR
RENTHAL
$149.98If you're running a 520 chain setup and serious about off-road performance, sprocket wear directly impacts your power delivery and acceleration response. The Renthal Twinring combines a lightweight aluminum core with a hardened steel outer ring, giving...12100984- SKU:
- 12100984
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$149.98Qty in Cart: 0Quantity:Price:$149.98Subtotal: -
Renthal Twinring Rear Sprocket 52T Orange 2240-520-52GPOR
RENTHAL
$149.98If you're running a 520 chain setup and want a sprocket that won't fail mid-race, the Renthal Twinring 52T delivers the durability you need without the weight penalty. By combining a lightweight 7075 T-6 aluminum core with an electro-less nickel-coated...12100985- SKU:
- 12100985
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
- COLOR/FINISH:
- ORANGE
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
$149.98 -
Renthal 520 R4 ATV Z-Ring Chain Replacement Connecting Link Rivet C298
RENTHAL
$9.38A worn or damaged chain connecting link compromises power transfer and safety on your ATV—leaving you stranded mid-ride or risking catastrophic failure. The Renthal C298 Replacement Connecting Link Rivet restores your 520 R4 Z-Ring chain to factory...12250090- SKU:
- 12250090
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- CHAIN TYPE:
- 520 R4 ATV
- COLOR/FINISH:
- GOLD
- TYPE:
- RIVET
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$9.38 -
Renthal 520 R4 ATV Z-Ring Chain Clip-Type Connecting Link C297
RENTHAL
$9.38A worn or damaged connecting link will compromise chain integrity and can lead to drivetrain failure during critical riding moments. The Renthal C297 clip-type connecting link restores your 520 R4 chain to factory specifications, ensuring consistent...12250091- SKU:
- 12250091
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- CHAIN TYPE:
- 520 R4 ATV
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- ATV
- TYPE:
- CLIP
- UNITS:
- EACH
$9.38Qty in Cart: 0Quantity:Price:$9.38Subtotal: -
Renthal 520 R4 ATV Z-Ring Chain 120 Links Gold C312
RENTHAL
$193.50If you're running an ATV through demanding terrain, your chain is taking abuse that demands engineered durability. The Renthal 520 R4 combines patented Z-Ring sealing technology with reinforced construction to deliver extended service life and reliable...12240025- SKU:
- 12240025
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- CHAIN SIZE:
- 520
- NUMBER OF LINKS:
- 120
- PRODUCT NAME:
- DRIVE CHAIN
- SEAL TYPE:
- Z-RING
- CHAIN TYPE:
- 520 R4 ATV
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TENSILE STRENGTH IMPERIAL:
- 7868 LB
- TENSILE STRENGTH METRIC:
- 35 KN
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MODEL:
- R4
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$193.50 -
Renthal 415 R1 Works Chain Clip Connecting Link C438
RENTHAL
$8.26A chain is only as strong as its weakest link—and a worn or damaged masterlink can sideline your bike mid-race. The Renthal C438 clip connecting link delivers the reliability you need to keep your 415 R1 Works chain functioning at peak performance, with...12250550- SKU:
- 12250550
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- NUMBER OF LINKS:
- 1
- TYPE:
- CLIP
- CHAIN TYPE:
- 415 R1
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$8.26 -
Renthal 520 R33 Gold Chain 104 Links C408
RENTHAL
$158.81Chain durability directly impacts your off-road performance and maintenance costs. The Renthal 520 R33 Gold Chain replaces traditional O-ring seals with Renthal's Self-Regulating Seals (SRS), delivering longer service life and reduced upkeep between...12220450- SKU:
- 12220450
- Availability:
- Ships Same Business Day
- Weight:
- 3.85 LBS
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- RIDING STYLE:
- OFF-ROAD
- MASTER LINK CONNECTOR:
- HOLLOW
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 450 CC
- NUMBER OF LINKS:
- 104
- RIDING STYLE:
- UTV
- TENSILE STRENGTH IMPERIAL:
- 7420 LB
- CHAIN SIZE:
- 520
- MODEL:
- R3
- PRODUCT NAME:
- DRIVE CHAIN
- CHAIN TYPE:
- 520 R33
- RIDING STYLE:
- ATV
- SEAL TYPE:
- SELF REGULATING SEAL (SRS)
- TENSILE STRENGTH METRIC:
- 33 KN
- UNITS:
- EACH
$158.81 -
Renthal 520 R33 Drive Chain 114 Links C413
RENTHAL
$172.47If you're running a 450cc off-road machine, your chain is the weakest link between engine power and rear wheel traction. The Renthal 520 R33 Chain with 114 Links replaces traditional O-ring seals with Renthal's Self-Regulating Seals (SRS) ring system,...12220451- SKU:
- 12220451
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- CHAIN TYPE:
- 520 R33
- MODEL:
- R3
- RIDING STYLE:
- UTV
- CHAIN SIZE:
- 520
- MASTER LINK CONNECTOR:
- HOLLOW
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 450 CC
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 114
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH IMPERIAL:
- 7420 LB
- UNITS:
- EACH
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- SEAL TYPE:
- SELF REGULATING SEAL (SRS)
- TENSILE STRENGTH METRIC:
- 33 KN
$172.47 -
Renthal 520 R33 Gold Chain 116 Links C414
RENTHAL
$176.97If you're running a 450cc off-road machine, chain durability directly impacts your reliability in the field and your maintenance costs over time. The Renthal 520 R33 Gold Chain replaces traditional O-ring seals with a Self-Regulating Seal system that...12220452- SKU:
- 12220452
- Availability:
- Ships Same Business Day
- Weight:
- 4.35 LBS
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- RIDING STYLE:
- ATV
- TENSILE STRENGTH IMPERIAL:
- 7420 LB
- TENSILE STRENGTH METRIC:
- 33 KN
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 450 CC
- MODEL:
- R3
- NUMBER OF LINKS:
- 116
- CHAIN TYPE:
- 520 R33
- MASTER LINK CONNECTOR:
- HOLLOW
- RIDING STYLE:
- UTV
- SEAL TYPE:
- SELF REGULATING SEAL (SRS)
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- OFF-ROAD
$176.97 -
Renthal 520 R33 SRS Chain Rivet Link C403
RENTHAL
$9.25A worn or damaged chain link can compromise the integrity of your entire drivetrain, leaving you stranded on the trail. The Renthal 520 R33 SRS Chain Rivet Link C403 gives you a straightforward way to restore your chain to factory specifications without...12220454- SKU:
- 12220454
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- CHAIN TYPE:
- 520 R33
- UNITS:
- EACH
- NUMBER OF LINKS:
- 1
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- TYPE:
- RIVET
$9.25
