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
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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 control, ensuring your 1992-1995 Kawasaki ZR1100 Zephyr...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 you to dial in exact clearances without guesswork. This...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 wear, and potential valve damage. This five-pack of...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 time, valve seats settle and shims wear, requiring...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 consistency, and thermal management necessary to maintain peak...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: $336.00Was: $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 for extreme applications where failure isn't an option...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: $336.00Was: $484.97 -
On Sale
JE PISTONS Piston Kit 371971
JE PISTONS
MSRP: $484.97Now: $336.00Was: $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 and precision engineering that separates...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: $336.00Was: $484.97 -
On Sale
JE PISTONS Piston Kit 371970
JE PISTONS
MSRP: $1,029.02Now: $717.00Was: $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 engineering and material science that separates competitive...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: $717.00Was: $1,029.02 -
JE PISTONS Piston Kit 324925
JE PISTONS
$519.99If you're building a high-output engine for competition or extreme street duty, piston quality directly impacts reliability, power delivery, and longevity. JE Pistons' 324925 kit delivers the metallurgy and precision engineering trusted by professional...09105823- SKU:
- 09105823
- Availability:
- Ships Same Business Day
- Weight:
- 2.01 LBS
- BORE SIZE METRIC:
- 81.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.0:1
- PISTON HEAD SHAPE:
- DISHED
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- WALL THICKNESS IMPERIAL:
- 0.100'
- UNITS:
- KIT
- DISPLACEMENT:
- 650 CC
$519.99 -
On Sale
JE PISTONS Piston Kit 324924
JE PISTONS
MSRP: $465.08Now: $333.00Was: $465.08If you're building a high-output engine for competition or extreme duty, piston quality directly impacts reliability and power delivery under sustained stress. JE Pistons' 324924 kit delivers the precision engineering and material science required to...09105822- SKU:
- 09105822
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- BORE SIZE METRIC:
- 81.00 MM
- DISPLACEMENT:
- 650 CC
- UNITS:
- KIT
- PISTON HEAD SHAPE:
- DISHED
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- WALL THICKNESS IMPERIAL:
- 0.100'
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
MSRP: $465.08Now: $333.00Was: $465.08 -
On Sale
JE PISTONS Piston Kit 317204
JE PISTONS
MSRP: $524.80Now: $365.00Was: $524.80If you're building a high-compression engine for the track or street, piston selection directly impacts power output, reliability, and longevity. JE Pistons are engineered specifically for extreme competition environments where standard OEM pistons...09105818- SKU:
- 09105818
- Availability:
- Ships Same Business Day
- Weight:
- 2.81 LBS
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 98.00 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- COMPRESSION RATIO IMPERIAL:
- 13.0:1
- DISPLACEMENT:
- 996 CC
- WALL THICKNESS IMPERIAL:
- 0.180'
MSRP: $524.80Now: $365.00Was: $524.80 -
JE PISTONS Piston Kit 308645
JE PISTONS
$1,139.99If you're building a high-displacement or forced-induction engine that demands reliability under extreme load, piston selection can be the difference between consistent power and catastrophic failure. JE Pistons' 308645 kit delivers the precision...09105817- SKU:
- 09105817
- Availability:
- Ships Same Business Day
- Weight:
- 2.36 LBS
- BORE SIZE METRIC:
- 69.00 MM
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- WALL THICKNESS IMPERIAL:
- 0.120'
- COMPRESSION RATIO IMPERIAL:
- 13.2:1
- DISPLACEMENT:
- 636 CC
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
$1,139.99 -
On Sale
JE PISTONS Piston Kit 247631
JE PISTONS
MSRP: $1,049.62Now: $730.00Was: $1,049.62If you're building a high-performance engine that needs to survive sustained boost, extreme RPM, and competition-level abuse, JE pistons are engineered to deliver the reliability and precision that separate winners from the rest. These 2618-T6 forgings...09105788- SKU:
- 09105788
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- UNITS:
- KIT
- DISPLACEMENT:
- 1070 CC
- PISTON HEAD SHAPE:
- DISHED
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- WALL THICKNESS IMPERIAL:
- 0.140'
- BORE SIZE METRIC:
- 76.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
MSRP: $1,049.62Now: $730.00Was: $1,049.62Qty in Cart: 0Quantity:Price:MSRP: $1,049.62Now: $730.00Was: $1,049.62Subtotal: -
On Sale
JE PISTONS Piston Kit 247629
JE PISTONS
MSRP: $1,049.62Now: $730.00Was: $1,049.62JE Pistons' 247629 kit delivers the strength and precision demanded by extreme racing applications, whether you're pushing limits on the track or in competition. Built from 2618-T6 forged aluminum, these pistons are engineered to handle the pressures of...09105787- SKU:
- 09105787
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- UNITS:
- KIT
- DISPLACEMENT:
- 1043 CC
- PISTON HEAD SHAPE:
- DISHED
- PRODUCT NAME:
- PISTON KIT
- WALL THICKNESS IMPERIAL:
- 0.140'
- BORE SIZE METRIC:
- 75.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- RIDING STYLE:
- STREET
MSRP: $1,049.62Now: $730.00Was: $1,049.62 -
VESRAH Complete Gasket Kit - GS1100 VG-380-M
VESRAH
$193.75A top-end rebuild demands precision—worn gaskets and seals compromise compression, invite oil leakage, and degrade engine reliability. The VESRAH Complete Gasket Kit VG-380-M provides all the essential sealing components you need for a thorough,...VG380- SKU:
- VG380
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- COMPLETE
- UNITS:
- SET
$193.75 -
VESRAH Complete Gasket Kit - GS1100 VG-381-M
VESRAH
$193.75Engine rebuilds demand precision—using OEM-equivalent gaskets ensures proper sealing, prevents oil and coolant leaks, and maintains compression integrity across all engine systems. The VESRAH VG-381-M eliminates the guesswork of sourcing individual...VG381- SKU:
- VG381
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- COMPLETE
- RIDING STYLE:
- STREET
- UNITS:
- SET
$193.75Qty in Cart: 0Quantity:Price:$193.75Subtotal: -
VESRAH Complete Gasket Kit - KZ1000 VG-436
VESRAH
$146.28Engine rebuilds demand precision and reliability—cutting corners on gaskets invites oil leaks, compression loss, and premature failure. The VESRAH VG-436 Complete Gasket Kit supplies everything necessary for a full engine restoration, eliminating the...VG436- SKU:
- VG436
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- UNITS:
- SET
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- COMPLETE
$146.28Qty in Cart: 0Quantity:Price:$146.28Subtotal: -
VESRAH Top End Gasket Kit - GL1000 VG-559
VESRAH
$118.95A complete engine rebuild demands precision gaskets that maintain compression and prevent oil seepage—the VESRAH VG-559 delivers both with engineered durability across all critical sealing points. Whether you're freshening a top-end or executing a full...VG559- SKU:
- VG559
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- UNITS:
- SET
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
$118.95 -
COMETIC Clutch Gasket - Yamaha EC1906032AFM
COMETIC
$18.95A quality clutch gasket is critical to preventing oil seepage and maintaining consistent clutch performance—and Cometic's AFM material construction eliminates the common headaches of traditional gaskets. The aluminum-bonded nitrile core resists weeping,...09345110- SKU:
- 09345110
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- TYPE:
- CLUTCH COVER
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$18.95 -
Wiseco Piston Kit Kawasaki KZ1000J 1981-1983 K1076
WISECO
$854.95If you're rebuilding a KZ1000J or pushing your vintage Kawasaki to the limit, piston quality directly impacts reliability and power output. This Wiseco kit gives you everything needed for a complete top-end refresh—pistons, rings, pins, clips, and...09030161- SKU:
- 09030161
- Availability:
- Ships Same Business Day
- Weight:
- 4.90 LBS
- BORE - OVERSIZE:
- +2,50 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 10.25:1
- DISPLACEMENT:
- 1075 CC
- PISTON MATERIAL:
- FORGED
- BORE SIZE METRIC:
- 72.00 MM
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- BORE - OVERSIZE METRIC:
- +2.50 MM
- STROKE LENGTH METRIC:
- 66.00 MM
$854.95Qty in Cart: 0Quantity:Price:$854.95Subtotal:
