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
-
On Sale
COMETIC Clutch Gasket - Kawasaki EC1165032AFM
COMETIC
MSRP: $30.95Now: $27.86Was: $30.95Clutch cover gaskets fail silently—until oil seeps onto your clutch basket and you're sidelined mid-season. The COMETIC EC1165032AFM eliminates the guesswork with an AFM (chemically blown nitrile)...09343997- SKU:
- 09343997
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- CLUTCH COVER
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- MODEL:
- HI-PERFORMANCE
- THICKNESS IMPERIAL:
- 0,032'
MSRP: $30.95Now: $27.86Was: $30.95 -
On Sale
COMETIC Stator Gasket - Kawasaki EC1190032AFM
COMETIC
MSRP: $20.95Now: $18.86Was: $20.95Stator cover gaskets fail prematurely when they stick to the engine case, requiring hours of tedious scraping and re-sealing. The COMETIC Stator Gasket eliminates this problem with AFM material that...09344000- SKU:
- 09344000
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- STATOR COVER
MSRP: $20.95Now: $18.86Was: $20.95Qty in Cart: 0Quantity:Price:MSRP: $20.95Now: $18.86Was: $20.95Subtotal: -
On Sale
COMETIC Stator Gasket - Suzuki EC896032AFM
COMETIC
MSRP: $18.95Now: $17.06Was: $18.95A worn or leaking stator cover gasket compromises engine sealing and forces unnecessary downtime for removal and replacement. The COMETIC Stator Gasket eliminates the frustration of stuck gaskets...09344035- SKU:
- 09344035
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- STATOR COVER
MSRP: $18.95Now: $17.06Was: $18.95Qty in Cart: 0Quantity:Price:MSRP: $18.95Now: $17.06Was: $18.95Subtotal: -
On Sale
COMETIC Stator Gasket - Yamaha EC938032AFM
COMETIC
MSRP: $7.95Now: $7.16Was: $7.95A stator cover gasket failure means oil seepage, potential engine damage, and unplanned downtime. The COMETIC Stator Gasket eliminates the frustration of gasket creep and adhesion with its AFM...09344036- SKU:
- 09344036
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- STATOR COVER
- RIDING STYLE:
- STREET
- MODEL:
- HI-PERFORMANCE
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
MSRP: $7.95Now: $7.16Was: $7.95Qty in Cart: 0Quantity:Price:MSRP: $7.95Now: $7.16Was: $7.95Subtotal: -
On Sale
COMETIC Clutch Gasket - Yamaha EC939032AFM
COMETIC
MSRP: $14.95Now: $13.46Was: $14.95A quality clutch gasket is foundational to maintaining a reliable seal and preventing oil weepage that compromises engine performance. The COMETIC Clutch Gasket (EC939032AFM) uses AFM material—a...09344037- SKU:
- 09344037
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- CLUTCH COVER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- MODEL:
- HI-PERFORMANCE
MSRP: $14.95Now: $13.46Was: $14.95 -
On Sale
COMETIC Stator Gasket - Yamaha EC943032AFM
COMETIC
MSRP: $7.95Now: $7.16Was: $7.95A stator cover gasket failure means oil weeping, potential engine damage, and unplanned downtime. The COMETIC Stator Gasket eliminates the frustration of stuck gaskets and failed seals by combining a...09344038- SKU:
- 09344038
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- RIDING STYLE:
- STREET
- TYPE:
- STATOR COVER
- UNITS:
- EACH
MSRP: $7.95Now: $7.16Was: $7.95 -
On Sale
COMETIC Clutch Gasket - Yamaha EC944032AFM
COMETIC
MSRP: $11.95Now: $10.76Was: $11.95Clutch cover gaskets fail prematurely when they weep, crawl, or require repeated re-torquing—all symptoms of inferior materials and design. The COMETIC Clutch Gasket (EC944032AFM) eliminates these...09344039- SKU:
- 09344039
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH COVER
MSRP: $11.95Now: $10.76Was: $11.95 -
On Sale
COMETIC Stator Gasket - Suzuki EC946032AFM
COMETIC
MSRP: $10.95Now: $9.86Was: $10.95Stator cover gasket failures lead to oil seepage, lost compression, and costly downtime—especially during critical racing seasons. The COMETIC EC946032AFM eliminates the frustration of gasket...09344040- SKU:
- 09344040
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- TYPE:
- STATOR COVER
- RIDING STYLE:
- STREET
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- MODEL:
- HI-PERFORMANCE
MSRP: $10.95Now: $9.86Was: $10.95 -
On Sale
COMETIC Clutch Gasket - Suzuki EC947032AFM
COMETIC
MSRP: $17.95Now: $16.16Was: $17.95A failing clutch gasket compromises your engine's integrity and creates messy, time-consuming rebuilds. The COMETIC Clutch Gasket eliminates weeping, crawling, and the need for sealants—delivering a...09344041- SKU:
- 09344041
- Availability:
- Ships Same Business Day
- Weight:
- 1.21 LBS
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- TYPE:
- CLUTCH COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $17.95Now: $16.16Was: $17.95 -
On Sale
COMETIC Clutch Gasket - Kawasaki EC950032AFM
COMETIC
MSRP: $22.95Now: $20.66Was: $22.95A quality clutch gasket is critical to maintaining a reliable seal and preventing oil weeping that can compromise engine performance and cleanliness. The COMETIC Clutch Gasket (EC950032AFM)...09344042- SKU:
- 09344042
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- TYPE:
- CLUTCH COVER
- RIDING STYLE:
- STREET
MSRP: $22.95Now: $20.66Was: $22.95 -
On Sale
COMETIC Valve Cover Gasket - Honda VC122060AFM
COMETIC
MSRP: $24.95Now: $22.46Was: $24.95A failing valve cover gasket leads to oil seepage, potential engine bay contamination, and the risk of oil reaching ignition sources. The COMETIC VC122060AFM restores a factory-fresh seal using...09344043- SKU:
- 09344043
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- UNITS:
- EACH
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- TYPE:
- VALVE COVER
- RIDING STYLE:
- STREET
MSRP: $24.95Now: $22.46Was: $24.95 -
On Sale
COMETIC Head Gasket - GSXR 750/1000 C8214-018
COMETIC
MSRP: $123.95Now: $111.56Was: $123.95A head gasket failure can sideline your bike and compromise engine integrity—especially on high-output GSXR models running aggressive boost or elevated compression. The COMETIC C8214-018 delivers...09343579- SKU:
- 09343579
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE METRIC:
- 75.00 MM
- FEATURES:
- WITH NO DOWEL PINS
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,018'
- TYPE:
- CYLINDER HEAD
- BORE SIZE:
- 75,00 MM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- THICKNESS METRIC:
- 0.46 MM
MSRP: $123.95Now: $111.56Was: $123.95 -
On Sale
COMETIC Head Gasket - GSXR 1300 C8218
COMETIC
MSRP: $103.95Now: $93.56Was: $103.95A head gasket failure on your GSXR 1300 means catastrophic engine damage and downtime you can't afford. The COMETIC C8218 is engineered to handle extreme combustion pressures and temperature swings...09343580- SKU:
- 09343580
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- PRODUCT NAME:
- GASKET
- THICKNESS METRIC:
- 0.76 MM
- TYPE:
- CYLINDER HEAD
- THICKNESS IMPERIAL:
- 0,030'
- BORE SIZE:
- 81,00 MM
- MATERIAL:
- STEEL
- BORE SIZE METRIC:
- 81.00 MM
- FEATURES:
- WITH 13 MM STUDS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $103.95Now: $93.56Was: $103.95 -
On Sale
COMETIC Head Gasket - GSXR 1300 C8656
COMETIC
MSRP: $103.95Now: $93.56Was: $103.95A head gasket is your engine's first line of defense against combustion pressure and fluid leakage. The COMETIC C8656 is engineered for the GSXR 1300 with multi-layer construction and premium sealing...09343790- SKU:
- 09343790
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- DISPLACEMENT:
- 1299 CC
- FEATURES:
- WITH NO DOWEL PINS
- MATERIAL:
- STEEL
- TYPE:
- CYLINDER HEAD
- BORE SIZE METRIC:
- 81.00 MM
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- BORE SIZE:
- 81,00 MM
- THICKNESS IMPERIAL:
- 0,030'
- THICKNESS METRIC:
- 0.76 MM
MSRP: $103.95Now: $93.56Was: $103.95 -
On Sale
COMETIC Head Gasket - GSXR 1300 C8658
COMETIC
MSRP: $103.95Now: $93.56Was: $103.95A head gasket failure can compromise your GSXR 1300's compression integrity and lead to costly engine damage. The COMETIC C8658 is engineered to seal reliably across extreme combustion pressures and...09343793- SKU:
- 09343793
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BORE SIZE METRIC:
- 84.00 MM
- DISPLACEMENT:
- 1396 CC
- BORE SIZE:
- 84,00 MM
- FEATURES:
- WITH NO DOWEL PINS
- MATERIAL:
- STEEL
- TYPE:
- CYLINDER HEAD
- THICKNESS IMPERIAL:
- 0,030'
- THICKNESS METRIC:
- 0.76 MM
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $103.95Now: $93.56Was: $103.95 -
On Sale
COMETIC Clutch Gasket - Yamaha EC1151032AFM
COMETIC
MSRP: $21.95Now: $19.76Was: $21.95A reliable clutch gasket is essential for maintaining a solid seal on your engine case and preventing oil weepage that can compromise performance and create a mess in your engine bay. The COMETIC...09343994- SKU:
- 09343994
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MODEL:
- HI-PERFORMANCE
- TYPE:
- CLUTCH COVER
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $21.95Now: $19.76Was: $21.95Qty in Cart: 0Quantity:Price:MSRP: $21.95Now: $19.76Was: $21.95Subtotal: -
On Sale
COMETIC Shift Shaft Seal OS227
COMETIC
MSRP: $4.95Now: $4.46Was: $4.95Countershaft seal leaks are a common maintenance issue that can compromise your transmission's integrity and lead to costly damage if left unchecked. The COMETIC Shift Shaft Seal OS227 is engineered...09350874- SKU:
- 09350874
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SEAL
- UNITS:
- EACH
- APPLICATION:
- SHIFTER SHAFT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
MSRP: $4.95Now: $4.46Was: $4.95 -
On Sale
COMETIC Shift Shaft Seal OS420
COMETIC
MSRP: $5.95Now: $5.36Was: $5.95Countershaft seal leaks are a common source of oil loss that compromises your transmission's reliability and performance. The COMETIC Shift Shaft Seal OS420 is a precision-engineered replacement seal...09350934- SKU:
- 09350934
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- APPLICATION:
- SHIFTER SHAFT
- UNITS:
- EACH
MSRP: $5.95Now: $5.36Was: $5.95Qty in Cart: 0Quantity:Price:MSRP: $5.95Now: $5.36Was: $5.95Subtotal: -
On Sale
COMETIC Countershaft Seal OS425
COMETIC
MSRP: $11.95Now: $10.76Was: $11.95Countershaft seal leaks compromise engine oil integrity and create messy, unreliable conditions in the garage or on the track. The COMETIC OS425 delivers precision sealing where it matters most,...09350939- SKU:
- 09350939
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- APPLICATION:
- COUNTERSHAFT
- UNITS:
- EACH
MSRP: $11.95Now: $10.76Was: $11.95Qty in Cart: 0Quantity:Price:MSRP: $11.95Now: $10.76Was: $11.95Subtotal: -
Hot Cams Valve Shim 13mm x 2.60mm for Honda CRF450R 2002-2012 5PK1300260
HOT CAMS
$13.95Valve clearance drift is one of the most overlooked maintenance issues on high-mileage CRF450R engines—it directly impacts combustion efficiency, fuel economy, and engine longevity. Hot Cams valve...09262332- SKU:
- 09262332
- 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:
- 2.60 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$13.95Qty in Cart: 0Quantity:Price:$13.95Subtotal:
