Street Bike Engine
Street Bike Engine Parts at JJ Motorsports
Rebuild and upgrade your street bike engine with precision parts from JJ Motorsports. Our inventory includes valves, complete gasket sets, and seals made from top-quality materials for optimal sealing, compression, and durability in high-performance applications. Compatible with Honda, Suzuki, BMW, Yamaha, and more, these components support full engine rebuilds, leak prevention, and enhanced reliability for sportbikes, cruisers, or tourers on the road or track.
Shop trusted brands like VESRAH for OEM-matching valves and gaskets. Explore related categories such as street bike air and fuel for intake upgrades or street bike drivetrain for transmission pairings.
Top Street Bike Engine Products
- VESRAH Exhaust Valve GG-1002-EX – Precision-made to match OEM specs for reliable exhaust flow.
- VESRAH Intake Valve GG-1002-IN – High-quality materials for smooth intake performance.
- VESRAH Exhaust Valve GG-1003-EX – Durable construction for long-lasting engine efficiency.
- VESRAH Complete Gasket Kit - Rebel 250 VG-1068 – Comprehensive set with o-rings and seals for full rebuilds.
- VESRAH Complete Gasket Kit - CB 700 VG-1073-M – Includes all essential gaskets for engine overhauls.
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
-
DRIVEN RACING Block Off Plate - Kawasaki DSBLOCK-10
DRIVEN RACING
$47.99If you're serious about dyno tuning your Kawasaki, air leaks will sabotage your baseline readings and make it impossible to validate your modifications. The DRIVEN RACING Block Off Plate eliminates...09300092- SKU:
- 09300092
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- BLOCK OFF PLATE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- 6061 T6 ALUMINUM
- UNITS:
- SET
$47.99 -
DRIVEN RACING Block Off Plate - Aprilia DSBLOCK-9
DRIVEN RACING
$124.99Whether you're chasing peak dyno numbers or eliminating parasitic air leaks that compromise tuning accuracy, the DRIVEN RACING Block Off Plate gives you complete control over your airbox...09300087- SKU:
- 09300087
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- BLOCK OFF PLATE
- MATERIAL:
- 6061 T6 ALUMINUM
- UNITS:
- SET
$124.99 -
DRIVEN RACING Block Off Plate - Kawasaki DSBLOCK-8
DRIVEN RACING
$47.99If you're serious about dyno tuning, air leaks will sabotage your baseline readings and cost you real horsepower data. The DRIVEN RACING Block Off Plate seals your airbox completely, giving you the...09300086- SKU:
- 09300086
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 6061 T6 ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- BLOCK OFF PLATE
- UNITS:
- SET
$47.99 -
DRIVEN RACING Block Off Plate - BMW RR DSBLOCK-7
DRIVEN RACING
$47.99If you're serious about dyno tuning your BMW motorcycle, you need a reliable way to isolate variables and eliminate parasitic air leaks that skew your results. The DRIVEN RACING Block Off Plate gives...09300085- SKU:
- 09300085
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 6061 T6 ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- SET
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- BLOCK OFF PLATE
$47.99 -
DRIVEN RACING Block Off Plate - Honda DSBLOCK-4
DRIVEN RACING
$47.99If you're serious about dyno tuning your Honda, air leaks will sabotage your baseline readings and throw off your entire tune. The DRIVEN RACING Block Off Plate eliminates these parasitic leaks by...09300074- SKU:
- 09300074
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- UNITS:
- SET
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- 6061 T6 ALUMINUM
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- BLOCK OFF PLATE
- RIDING STYLE:
- STREET
$47.99 -
DRIVEN RACING Block Off Plate - Kawasaki/Yamaha DSBLOCK-2
DRIVEN RACING
$47.99If you're serious about dyno tuning, air leaks will sabotage your baseline data and throw off your calibration. The DRIVEN RACING Block Off Plate eliminates parasitic air intake, giving you the...09300073- SKU:
- 09300073
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- 6061 T6 ALUMINUM
- UNITS:
- SET
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- BLOCK OFF PLATE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
$47.99 -
DRIVEN RACING Block Off Plate - GSXR DSBLOCK-1
DRIVEN RACING
$47.99If you're serious about extracting every last horsepower from your GSXR on the dyno, air leaks are silent killers—they corrupt your tuning data and mask real performance gains. The DRIVEN RACING...09300072- SKU:
- 09300072
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 6061 T6 ALUMINUM
- UNITS:
- SET
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- BLOCK OFF PLATE
- RIDING STYLE:
- STREET
$47.99 -
BARON Air Injection Kit BA-2551-00
BARON
$31.95The BARON Air Injection Kit BA-2551-00 eliminates the maze of unsightly hoses and lines that clutter your engine bay, delivering a factory-clean aesthetic without sacrificing emissions compliance. By...09300067- SKU:
- 09300067
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- PRODUCT NAME:
- REMOVAL KIT
- RIDING STYLE:
- STREET
$31.95Qty in Cart: 0Quantity:Price:$31.95Subtotal: -
Hot Cams Valve Shim 13mm x 2.40mm 5PK1300240
HOT CAMS
$13.95Proper valve clearance is critical to engine longevity and performance—too tight and you risk valve float under high RPM, too loose and you get noise and accelerated wear. The HOT CAMS Valve Shim...09262328- SKU:
- 09262328
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- OUTSIDE DIAMETER METRIC:
- 13.00 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 2.40 MM
$13.95Qty in Cart: 0Quantity:Price:$13.95Subtotal: -
Hot Cams Valve Shim 13mm 2.35mm for Kawasaki ZX-14R 2018 5PK1300235
HOT CAMS
$13.95Valve clearance directly impacts combustion efficiency, valve longevity, and overall engine reliability—especially on high-performance applications like the Kawasaki ZX-14R. Over time, valve shims...09262327- SKU:
- 09262327
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 13.00 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.35 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$13.95Qty in Cart: 0Quantity:Price:$13.95Subtotal: -
Hot Cams Valve Shim 13mm x 2.30mm for 1992-1995 Kawasaki ZR1100 Zephyr 5PK1300230
HOT CAMS
$13.95Valve clearance directly impacts your ZR1100's combustion efficiency, fuel economy, and engine longevity—and worn or incorrect shims compromise all three. Hot Cams valve shims are...09262326- SKU:
- 09262326
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 13.00 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.30 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$13.95Qty in Cart: 0Quantity:Price:$13.95Subtotal: -
Hot Cams Valve Shim 13mm x 2.20mm for 2005-2011 KTM 250 SX-F 5PK1300220
HOT CAMS
$9.95Valve clearance directly impacts combustion efficiency, fuel economy, and engine longevity—and worn or incorrect shims compromise all three. This 5-pack of Hot Cams valve shims provides precision...09262324- SKU:
- 09262324
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- WATERCRAFT
- VALVE SHIM THICKNESS METRIC:
- 2.20 MM
- TYPE:
- VALVE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 13.00 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 5 PACK
$9.95 -
Hot Cams Valve Shim 13mm x 2.05mm for 1992-1995 Kawasaki ZR1100 Zephyr 5PK1300205
HOT CAMS
$12.95Proper valve clearance is critical to engine reliability and performance—too tight and you risk valve float, too loose and you compromise efficiency. Hot Cams valve shims give you precise adjustment...09262321- SKU:
- 09262321
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 13.00 MM
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 2.05 MM
$12.95 -
Hot Cams Valve Shim 13mm x 2.00mm for 2008 Kawasaki EX250J Ninja 250R 5PK1300200
HOT CAMS
$13.95Valve clearance directly impacts engine performance, fuel efficiency, and longevity—getting it right is non-negotiable. Hot Cams Valve Shims are precision-engineered to OEM specifications, allowing...09262320- SKU:
- 09262320
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 13.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.00 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$13.95 -
Hot Cams Valve Shim 13mm x 1.95mm for Kawasaki KZ650 1977-1983 5PK1300195
HOT CAMS
$13.95Valve shim thickness directly controls your KZ650's valve clearance, which affects combustion efficiency, fuel economy, and engine longevity. Incorrect clearance leads to compression loss, premature...09262319- SKU:
- 09262319
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- OUTSIDE DIAMETER METRIC:
- 13.00 MM
- RIDING STYLE:
- UTV
- VALVE SHIM THICKNESS METRIC:
- 1.95 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$13.95Qty in Cart: 0Quantity:Price:$13.95Subtotal: -
Hot Cams Valve Shim 13mm x 1.85mm for 1991-1993 Kawasaki Zephyr 550 5PK1300185
HOT CAMS
$13.95Valve clearance directly impacts combustion efficiency, valve longevity, and overall engine responsiveness—especially critical on high-revving four-stroke engines like the Kawasaki Zephyr 550. Over...09262317- SKU:
- 09262317
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.85 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 13.00 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$13.95Qty in Cart: 0Quantity:Price:$13.95Subtotal: -
JE PISTONS Ultra Series Piston Kit - ZX14 379432
JE PISTONS
$1,019.95High-boost and high-horsepower applications demand pistons engineered to handle extreme pressures without compromise. The JE PISTONS Ultra Series Piston Kit delivers the strength, ring seal...09106392- SKU:
- 09106392
- Availability:
- Ships Same Business Day
- Weight:
- 4.10 LBS
- BORE SIZE METRIC:
- 84.00 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 9.5:1
- BORE - OVERSIZE:
- STANDARD
- UNITS:
- KIT
$1,019.95Qty in Cart: 0Quantity:Price:$1,019.95Subtotal: -
On Sale
JE PISTONS Piston Kit 374023
JE PISTONS
MSRP: $484.97Now: $310.00Was: $484.97If you're building a serious competition engine or pushing your platform beyond factory limits, piston selection is non-negotiable. JE PISTONS 374023 kits deliver the strength and precision required...09105827- SKU:
- 09105827
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
- BORE SIZE METRIC:
- 62.00 MM
- DISPLACEMENT:
- 300 CC
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
MSRP: $484.97Now: $310.00Was: $484.97 -
On Sale
JE PISTONS Piston Kit 371971
JE PISTONS
MSRP: $484.97Now: $310.00Was: $484.97If you're pushing your engine to the limit in competition or high-output street builds, your stock pistons won't survive the heat and pressure. JE PISTONS Piston Kit 371971 delivers the durability...09105825- SKU:
- 09105825
- Availability:
- Ships Same Business Day
- Weight:
- 1.56 LBS
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- DISPLACEMENT:
- 500 CC
- BORE SIZE METRIC:
- 67.00 MM
- UNITS:
- KIT
MSRP: $484.97Now: $310.00Was: $484.97 -
On Sale
JE PISTONS Piston Kit 371970
JE PISTONS
MSRP: $1,029.02Now: $659.00Was: $1,029.02If you're building an engine for the track or strip, piston quality directly determines your power ceiling and reliability under extreme load. JE Pistons' 371970 kit delivers the precision...09105824- SKU:
- 09105824
- Availability:
- Ships Same Business Day
- Weight:
- 3.31 LBS
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- UNITS:
- KIT
- BORE SIZE METRIC:
- 80.00 MM
- DISPLACEMENT:
- 999 CC
- RIDING STYLE:
- STREET
MSRP: $1,029.02Now: $659.00Was: $1,029.02Qty in Cart: 0Quantity:Price:MSRP: $1,029.02Now: $659.00Was: $1,029.02Subtotal:
