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!
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- Quantity
- Price
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On Sale
PROX Clutch Slave Cylinder Rebuild Kit - Husqvarna 16.950012
PROX
MSRP: $71.95Now: $56.00Was: $71.95A worn or leaking clutch slave cylinder compromises your shift precision and can leave you stranded. This PROX rebuild kit gives you a complete, cost-effective solution to restore your Husqvarna's clutch actuation to factory specifications without...11321878- SKU:
- 11321878
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
MSRP: $71.95Now: $56.00Was: $71.95 -
On Sale
PROX Clutch Slave Cylinder Rebuild Kit - Gas Gas/Husqvarna/KTM 16.950013
PROX
MSRP: $71.95Now: $56.00Was: $71.95A worn or leaking clutch slave cylinder compromises your bike's clutch engagement and creates safety risks on the track or trail. This PROX rebuild kit delivers all necessary internal components to restore your cylinder to OEM specifications without the...11321879- SKU:
- 11321879
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
MSRP: $71.95Now: $56.00Was: $71.95 -
On Sale
PROX Clutch Slave Cylinder Rebuild Kit - Gas Gas/Husqvarna/KTM 16.950014
PROX
MSRP: $71.95Now: $56.00Was: $71.95A worn or leaking clutch slave cylinder compromises your shift precision and can leave you stranded. This PROX rebuild kit gives you everything needed to restore full hydraulic function without replacing the entire cylinder. Get back to reliable,...11321880- SKU:
- 11321880
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
MSRP: $71.95Now: $56.00Was: $71.95 -
On Sale
PROX Clutch Slave Cylinder Rebuild Kit - Gas Gas/Husqvarna/KTM 16.950015
PROX
MSRP: $71.95Now: $56.00Was: $71.95A worn or deteriorating clutch slave cylinder compromises your bike's clutch engagement and modulation—critical factors for precise control on the track or trail. This rebuild kit restores your hydraulic clutch system to OEM specifications, eliminating...11321881- SKU:
- 11321881
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
MSRP: $71.95Now: $56.00Was: $71.95 -
On Sale
PROX Clutch Slave Cylinder Rebuild Kit - KX250/450F/X 16.950016
PROX
MSRP: $37.95Now: $30.00Was: $37.95A worn or failing clutch slave cylinder compromises your bike's clutch engagement, leading to sluggish shifts, dragging clutch, and potential damage to your transmission. This PROX rebuild kit gives you a cost-effective alternative to replacing the...11321882- SKU:
- 11321882
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
MSRP: $37.95Now: $30.00Was: $37.95 -
On Sale
PROX Clutch Slave Cylinder Rebuild Kit - 690 Enduro R 16.950038
PROX
MSRP: $71.95Now: $56.00Was: $71.95A worn or leaking clutch slave cylinder compromises your ability to modulate power delivery precisely—critical whether you're trail riding or pushing the 690 Enduro R to its limits. This rebuild kit delivers OEM-equivalent components without the downtime...11321883- SKU:
- 11321883
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
MSRP: $71.95Now: $56.00Was: $71.95 -
On Sale
PROX Clutch Slave Cylinder Rebuild Kit - CRF 450R/RX 16.950040
PROX
MSRP: $37.95Now: $30.00Was: $37.95A worn or leaking clutch slave cylinder compromises your bike's engagement precision and can leave you stranded mid-ride. This PROX rebuild kit restores your CRF 450R/RX to factory hydraulic performance with OEM-equivalent components, eliminating the...11321884- SKU:
- 11321884
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
MSRP: $37.95Now: $30.00Was: $37.95 -
On Sale
PROX Friction Plate Set - CRF250R/RX 16.S13093
PROX
MSRP: $102.95Now: $85.00Was: $102.95Worn or glazed friction plates compromise clutch engagement and throttle response—critical issues on a race-prepped or high-mileage CRF250R/RX. This OEM-spec friction plate set restores precise bite and consistent power delivery, whether you're logging...11313914- SKU:
- 11313914
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
MSRP: $102.95Now: $85.00Was: $102.95 -
On Sale
PROX Friction Plate Set - CRF250R/RX 16.S13094
PROX
MSRP: $112.95Now: $93.00Was: $112.95Worn or glazed friction plates compromise clutch response and throttle control—especially critical on track or in competitive riding. This OEM-spec friction plate set restores precise engagement and eliminates slippage, delivering the consistent bite...11313915- SKU:
- 11313915
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
MSRP: $112.95Now: $93.00Was: $112.95 -
On Sale
PROX Friction Plate Set - CRF450R/L/X/RX 16.S14091
PROX
MSRP: $81.95Now: $68.00Was: $81.95A worn or glazed clutch friction plate set robs your CRF450 of crisp power delivery and smooth engagement, leading to slippage under load and inconsistent performance. This OEM-specification friction plate set restores factory-level clutch response and...11313916- SKU:
- 11313916
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
MSRP: $81.95Now: $68.00Was: $81.95 -
On Sale
PROX Friction Plate Set - YZ65 16.S20018
PROX
MSRP: $63.95Now: $51.00Was: $63.95A worn or slipping clutch can cost you race time and reliability when you need it most. The PROX Friction Plate Set delivers OEM-exact performance for your YZ65, restoring crisp engagement and smooth power delivery without compromise. Complete...11313917- SKU:
- 11313917
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
MSRP: $63.95Now: $51.00Was: $63.95Qty in Cart: 0Quantity:Price:MSRP: $63.95Now: $51.00Was: $63.95Subtotal: -
On Sale
PROX Friction Plate Set - Yamaha 16.S23065
PROX
MSRP: $102.95Now: $85.00Was: $102.95A worn or glazed clutch friction plate set compromises your ability to deliver power consistently and safely, whether you're on the track or the street. PROX Friction Plate Sets are manufactured to exact OEM specifications, ensuring smooth engagement,...11313918- SKU:
- 11313918
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
MSRP: $102.95Now: $85.00Was: $102.95 -
On Sale
PROX Friction Plate Set - YZ450F 16.S24066
PROX
MSRP: $122.95Now: $102.00Was: $122.95A worn or glazed clutch plate set directly compromises throttle response and power delivery on your YZ450F—compromising both track performance and trail reliability. The PROX Friction Plate Set restores OEM-spec engagement characteristics, ensuring...11313919- SKU:
- 11313919
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
MSRP: $122.95Now: $102.00Was: $122.95 -
On Sale
PROX Friction Plate Set - KX250/X 16.S43041
PROX
MSRP: $122.95Now: $102.00Was: $122.95A worn or glazed friction plate set compromises clutch engagement and throttle response—critical factors whether you're racing competitively or pushing your KX250/X hard on the track. This OEM-specification friction plate set delivers the smooth,...11313920- SKU:
- 11313920
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
MSRP: $122.95Now: $102.00Was: $122.95 -
On Sale
PROX Friction Plate Set - KX450F 16.S44029
PROX
MSRP: $102.95Now: $85.00Was: $102.95A worn or glazed clutch friction plate set robs your KX450F of engagement precision and throttle response—exactly what you can't afford in competitive riding or trail work. This OEM-spec PROX friction plate set restores the stock clutch's original biting...11313921- SKU:
- 11313921
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $102.95Now: $85.00Was: $102.95 -
On Sale
PROX Friction Plate Set - Gas Gas/Husqvarma/KTM 16.S53009
PROX
MSRP: $102.95Now: $85.00Was: $102.95Your clutch's friction plates are the critical interface between engine power and wheel traction—wear or glazing here directly compromises bite, modulation, and overall drivetrain reliability. This PROX OEM-spec replacement set restores factory...11313924- SKU:
- 11313924
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
MSRP: $102.95Now: $85.00Was: $102.95 -
On Sale
PROX Friction Plate Set - SE 2.5/3.0 i-F 16.S73008
PROX
MSRP: $102.95Now: $85.00Was: $102.95A worn or glazed clutch friction plate set compromises both drivability and power transfer—especially critical in performance applications where precision engagement directly impacts lap times and reliability. This OEM-specification friction plate set...11313925- SKU:
- 11313925
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
MSRP: $102.95Now: $85.00Was: $102.95 -
On Sale
PROX Steel Plate Set - CRF250R/RX 16.S13095
PROX
MSRP: $78.95Now: $64.00Was: $78.95Worn or glazed clutch plates kill performance and reliability—especially on a high-revving 250cc engine where precision matters. The PROX Steel Plate Set restores OEM-spec friction characteristics and heat dissipation, giving you predictable engagement...11313927- SKU:
- 11313927
- Availability:
- Ships Same Business Day
- Weight:
- 1.14 LBS
MSRP: $78.95Now: $64.00Was: $78.95 -
On Sale
PROX Steel Plate Set - CRF450R/L/X/RX 16.S14092
PROX
MSRP: $62.95Now: $51.00Was: $62.95Your CRF450's clutch performance depends on precision-engineered friction surfaces that can handle aggressive riding and repeated heat cycles. ProX steel plates are manufactured to OEM specifications, ensuring consistent engagement and maximum durability...11313928- SKU:
- 11313928
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
MSRP: $62.95Now: $51.00Was: $62.95 -
On Sale
PROX Steel Plate Set - YZ65 16.S20019
PROX
MSRP: $27.95Now: $22.00Was: $27.95Steel clutch plates wear with every heat cycle, and worn plates kill your YZ65's power delivery and ruin shift quality. The PROX Steel Plate Set restores OEM clutch performance with precision-manufactured plates engineered to exact factory specifications...11313929- SKU:
- 11313929
- Availability:
- Ships Same Business Day
- Weight:
- 0.77 LBS
MSRP: $27.95Now: $22.00Was: $27.95
