Street Bike Drivetrain
Street Bike Drivetrain Parts at JJ Motorsports
Upgrade your street bike's drivetrain for smoother power delivery and longevity with components from JJ Motorsports. Our range includes chains, sprockets, drive belts, transmission covers, and more, designed for reduced wear, better acceleration, and reliable performance on the road or track. Compatible with Honda, Kawasaki, Suzuki, and other models, these parts feature high-strength materials, precise fitment, and easy installation for sportbikes, cruisers, or tourers.
Shop trusted brands like JT Sprockets for durable sprockets and Drag Specialties for reinforced belts. Explore related subcategories such as street bike rear sprockets for gear ratios or street bike drive belts for belt-driven systems.
Top Street Bike Drivetrain Products
- JT Chains 420 HDR Heavy Duty Drive Chain - Steel - 100 Links – Ideal for up to 150cc engines with enhanced strength.
- JT Sprockets Sprocket Rear Kawasaki 42-Tooth JTR1489.42 – Steel construction for minimum weight and maximum durability.
- Drag Specialties Rear Drive Belt 136-Tooth 1 1/2" BDL SPC-136 – Carbon fiber reinforced for superior strength on belt-driven bikes.
- Trask Transmission Cover M8 TM-2041CH – Billet aluminum for a custom look and protection on M8 engines.
- Driven Racing Rear Sprocket 43-Tooth 5063-520-43T – Precision-machined for optimal gear performance and lightweight design.
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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On Sale
RK 520 XRU - Chain - 120 Links - Gold GB520XRU-120
RK
MSRP: $335.15Now: $301.64Was: $335.15A racing chain lives or dies by its ability to transmit power without parasitic losses—and the RK 520 XRU is engineered for that singular purpose. The UW seals reduce friction at every link,...12210413- SKU:
- 12210413
- Availability:
- Ships Same Business Day
- Weight:
- 4.15 LBS
MSRP: $335.15Now: $301.64Was: $335.15 -
On Sale
RK 420 MRU - Chain - 130 Links - Black BL420MRU-130
RK
MSRP: $173.37Now: $156.03Was: $173.37If you're running a Honda Monkey or Grom, chain longevity and maintenance frequency directly impact your track time and reliability. The RK 420 MRU eliminates the constant adjustments plaguing...12210426- SKU:
- 12210426
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
MSRP: $173.37Now: $156.03Was: $173.37 -
On Sale
DID 420 NZ3 - High-Performance Motorcycle Chain - 130 Links - Gold 420NZ3G130RB
DID
MSRP: $89.84Now: $76.36Was: $89.84If you're serious about offroad racing or high-performance small bike riding, chain durability and strength directly impact your lap times and safety. The DID 420 NZ3 delivers the tensile strength...12210482- SKU:
- 12210482
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
MSRP: $89.84Now: $76.36Was: $89.84 -
On Sale
RK 428 MXZ1 - Chain - 134 Links - Natural 428MXZ1-134
RK
MSRP: $65.40Now: $58.86Was: $65.40Mini MX and SX racing demands a chain engineered to withstand punishing acceleration, aggressive shifting, and high-speed cornering—the RK 428 MXZ1 delivers on all fronts. Built from chromoly steel...12210470- SKU:
- 12210470
- Availability:
- Ships Same Business Day
- Weight:
- 3.04 LBS
MSRP: $65.40Now: $58.86Was: $65.40 -
On Sale
RK 428 MXZ1 - Chain - 100 Links - Gold GB428MXZ1-100
RK
MSRP: $62.12Now: $55.91Was: $62.12Mini MX and SX racing demands a chain that can withstand the intense acceleration, deceleration, and lateral forces inherent to the sport. The RK 428 MXZ1 delivers the durability and reliability you...12210471- SKU:
- 12210471
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
MSRP: $62.12Now: $55.91Was: $62.12 -
On Sale
RK 428 MXZ1 - Chain - 116 Links - Gold GB428MXZ1-116
RK
MSRP: $72.08Now: $64.87Was: $72.08Mini MX and SX racing demand a chain that can handle explosive acceleration, rapid deceleration, and sustained high RPM without sacrificing reliability. The RK 428 MXZ1 delivers the durability and...12210474- SKU:
- 12210474
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
MSRP: $72.08Now: $64.87Was: $72.08 -
On Sale
RK 428 MXZ1 - Chain - 118 Links - Gold GB428MXZ1-118
RK
MSRP: $73.31Now: $65.98Was: $73.31Mini MX and SX racing demands a chain that can withstand aggressive acceleration, hard cornering, and sustained high RPMs without stretching or breaking mid-race. The RK 428 MXZ1 is purpose-built for...12210475- SKU:
- 12210475
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
MSRP: $73.31Now: $65.98Was: $73.31Qty in Cart: 0Quantity:Price:MSRP: $73.31Now: $65.98Was: $73.31Subtotal: -
On Sale
RK 428 MXZ1 - Chain - 126 Links - Gold GB428MXZ1-126
RK
MSRP: $78.31Now: $70.48Was: $78.31Mini MX and SX racing demands a chain that can handle aggressive acceleration, sustained high RPMs, and the constant stress of competition—the RK 428 MXZ1 delivers exactly that. Built with chromoly...12210478- SKU:
- 12210478
- Availability:
- Ships Same Business Day
- Weight:
- 2.84 LBS
MSRP: $78.31Now: $70.48Was: $78.31Qty in Cart: 0Quantity:Price:MSRP: $78.31Now: $70.48Was: $78.31Subtotal: -
On Sale
RK 428 MXZ1 - Chain - 130 Links - Gold GB428MXZ1-130
RK
MSRP: $80.78Now: $72.70Was: $80.78Mini MX and SX racing demands a chain that can withstand the intense stress of competitive riding without sacrificing reliability. The RK 428 MXZ1 delivers the durability and strength you need to...12210479- SKU:
- 12210479
- Availability:
- Ships Same Business Day
- Weight:
- 2.92 LBS
MSRP: $80.78Now: $72.70Was: $80.78 -
On Sale
RK 428 MXZ1 - Chain - 132 Links - Gold GB428MXZ1-132
RK
MSRP: $82.03Now: $73.83Was: $82.03If you're running mini MX or SX racing, your chain needs to handle explosive acceleration, sharp cornering loads, and the constant punishment of track conditions—which is exactly what the RK 428 MXZ1...12210480- SKU:
- 12210480
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
MSRP: $82.03Now: $73.83Was: $82.03Qty in Cart: 0Quantity:Price:MSRP: $82.03Now: $73.83Was: $82.03Subtotal: -
On Sale
RK 428 MXZ1 - Chain - 120 Links - Natural 428MXZ1-120
RK
MSRP: $58.57Now: $52.71Was: $58.57Mini MX and SX racing demands a chain that can withstand extreme acceleration, cornering forces, and constant punishment on the track. The RK 428 MXZ1 delivers the durability and reliability your...12210469- SKU:
- 12210469
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
MSRP: $58.57Now: $52.71Was: $58.57 -
On Sale
RK 428 MXZ1 - Chain - 124 Links - Gold GB428MXZ1-124
RK
MSRP: $77.06Now: $69.35Was: $77.06If you're running a mini MX or SX program, chain durability under race conditions separates competitive riders from the rest of the field. The RK 428 MXZ1 delivers the strength and reliability...12210477- SKU:
- 12210477
- Availability:
- Ships Same Business Day
- Weight:
- 2.79 LBS
MSRP: $77.06Now: $69.35Was: $77.06Qty in Cart: 0Quantity:Price:MSRP: $77.06Now: $69.35Was: $77.06Subtotal: -
On Sale
JT SPROCKETS Countershaft Sprocket - 18 Tooth - Triumph JTF1183.18RB
JT SPROCKETS
MSRP: $16.58Now: $14.76Was: $16.58A quality countershaft sprocket is critical to reliable power delivery and shift consistency in your Triumph's drivetrain. This JT Sprockets 18-tooth unit delivers the precision engineering and...12122051- SKU:
- 12122051
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
MSRP: $16.58Now: $14.76Was: $16.58Qty in Cart: 0Quantity:Price:MSRP: $16.58Now: $14.76Was: $16.58Subtotal: -
On Sale
RK 520 XRE - Drive Chain - 116 Links 520XRE-116
RK
MSRP: $148.64Now: $133.78Was: $148.64A worn or stock chain limits your motorcycle's acceleration and reliability. The RK 520 XRE delivers the durability and responsiveness you need, whether you're replacing OE equipment or upgrading for...12231860- SKU:
- 12231860
- Availability:
- Ships Same Business Day
- Weight:
- 4.21 LBS
MSRP: $148.64Now: $133.78Was: $148.64Qty in Cart: 0Quantity:Price:MSRP: $148.64Now: $133.78Was: $148.64Subtotal: -
On Sale
RK 520 ZXW - Connecting Link - Rivet - Blue BB520ZXW-RL
RK
MSRP: $20.31Now: $18.28Was: $20.31A worn or damaged chain connecting link compromises power transfer and creates safety risks—especially at high RPMs where chain failure can be catastrophic. The RK 520 ZXW connecting link restores...12250826- SKU:
- 12250826
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
MSRP: $20.31Now: $18.28Was: $20.31 -
On Sale
RK 520 ZXW - Connecting Link - Rivet - Green MM520ZXW-RL
RK
MSRP: $20.31Now: $18.28Was: $20.31A worn or damaged connecting link compromises chain integrity and can lead to catastrophic drivetrain failure mid-ride. The RK 520 ZXW replacement connecting link restores your chain's structural...12250827- SKU:
- 12250827
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
MSRP: $20.31Now: $18.28Was: $20.31 -
On Sale
RK 520 ZXW - Connecting Link - Rivet - Black Scale BL520ZXW-RL
RK
MSRP: $20.31Now: $18.28Was: $20.31A worn or damaged connecting link compromises chain integrity, leading to power loss, noise, and potential catastrophic failure on the track or road. The RK 520 ZXW Connecting Link delivers the...12250828- SKU:
- 12250828
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
MSRP: $20.31Now: $18.28Was: $20.31 -
On Sale
RK 530 ZXW - Connecting Link - Rivet - Green MM530ZXW-RL
RK
MSRP: $23.25Now: $20.93Was: $23.25A worn or damaged connecting link compromises your entire chain assembly, leading to power loss, unpredictable slack, and potential catastrophic failure at high RPM. The RK 530 ZXW Connecting Link...12250835- SKU:
- 12250835
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
MSRP: $23.25Now: $20.93Was: $23.25 -
On Sale
RK 520 ZXW - Drive Chain - 150 Links - Black Scale BL520ZXW-150
RK
MSRP: $352.92Now: $317.63Was: $352.92A reliable drive chain is the backbone of any high-performance drivetrain, and the RK 520 ZXW delivers the precision and durability demanded by serious racers and build enthusiasts. Built to handle...12231914- SKU:
- 12231914
- Availability:
- Ships Same Business Day
- Weight:
- 6.15 LBS
MSRP: $352.92Now: $317.63Was: $352.92Qty in Cart: 0Quantity:Price:MSRP: $352.92Now: $317.63Was: $352.92Subtotal: -
On Sale
RK 520 ZXW - Drive Chain - 170 Links - Black Scale BL520ZXW-170
RK
MSRP: $399.96Now: $359.96Was: $399.96A 520 chain is the workhorse of sport bike and lightweight racing platforms, and the RK 520 ZXW delivers the strength and reliability required for sustained high-RPM performance. Built from premium...12231915- SKU:
- 12231915
- Availability:
- Ships Same Business Day
- Weight:
- 6.93 LBS
MSRP: $399.96Now: $359.96Was: $399.96
