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Street Bike Engine

Street Bike Engine

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

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
  • KIBBLEWHITE Exhaust Valve 60-60143

    KIBBLEWHITE Exhaust Valve 60-60143

    KIBBLEWHITE

    $31.01
    Exhaust valves are a critical wear item in high-performance engines, and factory replacements often become a bottleneck in power output and reliability. The KIBBLEWHITE Black Diamondâ„¢ Exhaust Valve (60-60143) uses premium EV8 stainless steel forgings and...
    09263249
    SKU:
    09263249
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    HEAD DIAMETER METRIC:
    24.00 MM
    LENGTH IMPERIAL:
    3.755'
    RIDING STYLE:
    STREET
    APPLICATION:
    EXHAUST
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    VALVE
    STEM DIAMETER IMPERIAL:
    3.97 MM
    TULIP ANGLE:
    20°
    MODEL:
    BLACK DIAMONDâ„¢
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $31.01
    Subtotal:
  • KIBBLEWHITE Valve Guide 60-60150

    KIBBLEWHITE Valve Guide 60-60150

    KIBBLEWHITE

    $31.71
    Valve guide wear is one of the fastest ways to lose compression and increase oil consumption in any engine. The KIBBLEWHITE 60-60150 valve guide is engineered with Ampco-45 alloy to deliver superior heat dissipation and wear resistance where it matters...
    09263250
    SKU:
    09263250
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    OUTSIDE DIAMETER IMPERIAL:
    0.3573'
    APPLICATION:
    EXHAUST
    INSIDE DIAMETER IMPERIAL:
    0.1570'
    MATERIAL:
    C630 BRONZE
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $31.71
    Qty in Cart: 0
    Quantity:
    Price:
    $31.71
    Subtotal:
  • KIBBLEWHITE Beehive Valve Spring Kit 60-60950

    KIBBLEWHITE Beehive Valve Spring Kit 60-60950

    KIBBLEWHITE

    $204.36
    High-revving engines demand valve springs that can handle aggressive lift and duration without sacrificing reliability. The KIBBLEWHITE Beehive Valve Spring Kit delivers the precision engineering and material science required to keep your valvetrain...
    09263251
    SKU:
    09263251
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    SPRING OPEN PRESSURE:
    181 LB
    SPRING SEAT PRESSURE:
    60 LB
    UNITS:
    KIT
    SPRING LIFT IMPERIAL:
    0.425'
    COLLAR MATERIAL:
    STEEL
    PRODUCT NAME:
    SPRING KIT
    RIDING STYLE:
    STREET
    APPLICATION:
    EXHAUST
    STYLE:
    PERFORMANCE REBUILD BEEHIVE
    $204.36
    Qty in Cart: 0
    Quantity:
    Price:
    $204.36
    Subtotal:
  • KIBBLEWHITE Retainer Set - 16 pack 60-60941

    KIBBLEWHITE Retainer Set - 16 pack 60-60941

    KIBBLEWHITE

    $151.09
    Valve spring retainers are a critical foundation for high-RPM performance, and this Kibblewhite set delivers the strength-to-weight ratio serious builders demand. Titanium construction means you're shedding rotational mass without compromising durability...
    09263252
    SKU:
    09263252
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    UNITS:
    16 PACK
    MATERIAL:
    HIGH TENSILE STEEL
    APPLICATION:
    EXHAUST
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    RETAINER SET
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $151.09
    Subtotal:
  • KIBBLEWHITE Intake Valve 60-60612H

    KIBBLEWHITE Intake Valve 60-60612H

    KIBBLEWHITE

    $37.55
    Valve durability directly impacts your engine's reliability and performance longevity. The KIBBLEWHITE Black Diamondâ„¢ Intake Valve delivers superior wear resistance and consistent sealing through its proprietary multi-stage friction-reduction process,...
    09263254
    SKU:
    09263254
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MODEL:
    BLACK DIAMONDâ„¢
    STEM DIAMETER IMPERIAL:
    4.50 MM
    TULIP ANGLE:
    25°
    APPLICATION:
    INTAKE
    HEAD DIAMETER METRIC:
    30.00 MM
    LENGTH IMPERIAL:
    3.760'
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    VALVE
    $37.55
    Qty in Cart: 0
    Quantity:
    Price:
    $37.55
    Subtotal:
  • KIBBLEWHITE Exhaust Valve 60-60616H

    KIBBLEWHITE Exhaust Valve 60-60616H

    KIBBLEWHITE

    $37.55
    Exhaust valves are critical to engine efficiency and longevity—they control the release of combustion gases and must withstand extreme temperatures and pressure cycles. The KIBBLEWHITE Black Diamond™ valve delivers precision engineering and durability...
    09263255
    SKU:
    09263255
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    HEAD DIAMETER METRIC:
    24.00 MM
    MODEL:
    BLACK DIAMONDâ„¢
    RIDING STYLE:
    STREET
    APPLICATION:
    EXHAUST
    LENGTH IMPERIAL:
    3.750'
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    VALVE
    TULIP ANGLE:
    14°
    UNITS:
    EACH
    STEM DIAMETER IMPERIAL:
    4.50 MM
    $37.55
    Qty in Cart: 0
    Quantity:
    Price:
    $37.55
    Subtotal:
  • KIBBLEWHITE Valve Guide 60-60620

    KIBBLEWHITE Valve Guide 60-60620

    KIBBLEWHITE

    $22.29
    Valve guide wear compromises cylinder head integrity and increases blowby, directly impacting engine efficiency and longevity. The KIBBLEWHITE 60-60620 valve guide delivers superior heat dissipation and wear resistance through its Ampco-45 composition,...
    09263256
    SKU:
    09263256
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    APPLICATION:
    INTAKE
    UNITS:
    EACH
    MATERIAL:
    C630 BRONZE
    OUTSIDE DIAMETER IMPERIAL:
    0.3773'
    APPLICATION:
    EXHAUST
    INSIDE DIAMETER IMPERIAL:
    0.1760'
    Qty in Cart: 0
    Quantity:
    Price:
    $22.29
    Subtotal:
  • On Sale
    KIBBLEWHITE Valve Spring Kit 60-1006

    KIBBLEWHITE Valve Spring Kit 60-1006

    KIBBLEWHITE

    MSRP: $617.84
    Now: $395.00
    Was: $617.84
    Factory valve springs are engineered for longevity under normal driving conditions, not sustained high-RPM performance. If you're building a boosted engine, running aggressive cams, or pushing higher valve lift, stock springs will fail—costing you...
    09263258
    SKU:
    09263258
    Availability:
    Ships Same Business Day
    Weight:
    1.71 LBS
    PRODUCT NAME:
    SPRING KIT
    SPRING LIFT:
    0,420'
    MATERIAL:
    TITANIUM
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    SPRING LIFT IMPERIAL:
    0.420'
    SPRING SEAT PRESSURE:
    55 LB
    SPRING OPEN PRESSURE:
    157 LB
    MSRP: $617.84
    Now: $395.00
    Was: $617.84
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $617.84
    Now: $395.00
    Was: $617.84
    Subtotal:
  • On Sale
    KIBBLEWHITE Center Intake Valve 80-80283

    KIBBLEWHITE Center Intake Valve 80-80283

    KIBBLEWHITE

    MSRP: $75.37
    Now: $48.00
    Was: $75.37
    Intake valve performance directly impacts combustion efficiency and engine longevity. The KIBBLEWHITE Center Intake Valve 80-80283 delivers superior durability through precision engineering and advanced materials that withstand extreme thermal and...
    09263264
    SKU:
    09263264
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    HEAD DIAMETER METRIC:
    23.00 MM
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    VALVE
    UNITS:
    EACH
    APPLICATION:
    CENTER INTAKE
    MODEL:
    BLACK DIAMONDâ„¢
    RIDING STYLE:
    STREET
    STEM DIAMETER IMPERIAL:
    4.00 MM
    LENGTH IMPERIAL:
    3.565'
    TULIP ANGLE:
    15°
    MSRP: $75.37
    Now: $48.00
    Was: $75.37
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $75.37
    Now: $48.00
    Was: $75.37
    Subtotal:
  • KIBBLEWHITE Valve Spring Kit 80-80500

    KIBBLEWHITE Valve Spring Kit 80-80500

    KIBBLEWHITE

    $817.16
    Factory valve springs are engineered for longevity, not performance—they'll hold back your engine's potential under high RPM loads. The KIBBLEWHITE 80-80500 kit replaces them with lightweight CrSi springs and titanium retainers that deliver reliable...
    09263268
    SKU:
    09263268
    Availability:
    Ships Same Business Day
    Weight:
    1.16 LBS
    SPRING LIFT IMPERIAL:
    0.340'
    UNITS:
    KIT
    SPRING LIFT:
    0,340'
    MATERIAL:
    TITANIUM
    PRODUCT NAME:
    SPRING KIT
    RIDING STYLE:
    STREET
    SPRING OPEN PRESSURE:
    118 LB
    SPRING SEAT PRESSURE:
    48 LB
    $817.16
    Qty in Cart: 0
    Quantity:
    Price:
    $817.16
    Subtotal:
  • KIBBLEWHITE Exhaust Valve 80-80666

    KIBBLEWHITE Exhaust Valve 80-80666

    KIBBLEWHITE

    $31.01
    Exhaust valves are critical wear items that directly impact combustion efficiency, sealing integrity, and engine longevity. The KIBBLEWHITE 80-80666 Black Diamondâ„¢ valve combines precision CNC machining with premium EV8 stainless steel to deliver...
    09263270
    SKU:
    09263270
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    HEAD DIAMETER METRIC:
    25.00 MM
    TULIP ANGLE:
    15°
    LENGTH IMPERIAL:
    3.565'
    MODEL:
    BLACK DIAMONDâ„¢
    STEM DIAMETER IMPERIAL:
    4.50 MM
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    APPLICATION:
    EXHAUST
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    VALVE
    $31.01
    Qty in Cart: 0
    Quantity:
    Price:
    $31.01
    Subtotal:
  • KIBBLEWHITE Intake Valve - Standard - YZFR1 80-80662T

    KIBBLEWHITE Intake Valve - Standard - YZFR1 80-80662T

    KIBBLEWHITE

    $109.33
    OEM intake valves wear out under extreme engine loads, compromising combustion efficiency and throttle response. The KIBBLEWHITE Tensilite® intake valve delivers the durability and precision your YZF-R1 demands, with superior heat resistance and a...
    09263271
    SKU:
    09263271
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    RIDING STYLE:
    OFF-ROAD
    STEM DIAMETER IMPERIAL:
    0.1960'
    HEAD DIAMETER METRIC:
    31.00 MM
    TULIP ANGLE:
    25°
    PRODUCT NAME:
    VALVE
    APPLICATION:
    INTAKE
    MATERIAL:
    TITANIUM
    MODEL:
    TENSILITE®
    UNITS:
    EACH
    $109.33
    Qty in Cart: 0
    Quantity:
    Price:
    $109.33
    Subtotal:
  • On Sale
    KIBBLEWHITE Keeper Set 80-80660

    KIBBLEWHITE Keeper Set 80-80660

    KIBBLEWHITE

    MSRP: $50.46
    Now: $32.00
    Was: $50.46
    Valve keepers are a critical safety component that locks your valve springs in place under extreme pressure and RPM—failure here means catastrophic engine damage. Kibblewhite's 80-80660 keeper set delivers the reliability needed for high-revving engines,...
    09263272
    SKU:
    09263272
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    APPLICATION:
    EXHAUST
    APPLICATION:
    INTAKE
    RIDING STYLE:
    STREET
    UNITS:
    SET
    LENGTH IMPERIAL:
    0.221'
    MATERIAL:
    STEEL
    PRODUCT NAME:
    KEEPER SET
    STEM DIAMETER IMPERIAL:
    0.177'
    MSRP: $50.46
    Now: $32.00
    Was: $50.46
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $50.46
    Now: $32.00
    Was: $50.46
    Subtotal:
  • KIBBLEWHITE Retainer Set - 16 pack 40-40501

    KIBBLEWHITE Retainer Set - 16 pack 40-40501

    KIBBLEWHITE

    $177.28
    Valve retainers are critical to maintaining valve train stability under extreme RPM and boost conditions—failure here means catastrophic engine damage. The KIBBLEWHITE 40-40501 Retainer Set delivers the strength-to-weight ratio you need for high-revving...
    09263274
    SKU:
    09263274
    Availability:
    Ships Same Business Day
    Weight:
    0.26 LBS
    APPLICATION:
    EXHAUST
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    RETAINER SET
    RIDING STYLE:
    STREET
    MATERIAL:
    HIGH TENSILE STEEL
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $177.28
    Subtotal:
  • KIBBLEWHITE Guide Valve - Standard 70-0331

    KIBBLEWHITE Guide Valve - Standard 70-0331

    KIBBLEWHITE

    $29.60
    Valve guides are critical to maintaining proper valve seat geometry and preventing excessive valve stem wear—issues that directly compromise combustion efficiency and engine longevity. The KIBBLEWHITE Guide Valve (Standard 70-0331) delivers precision...
    09261668
    SKU:
    09261668
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    APPLICATION:
    EXHAUST
    APPLICATION:
    INTAKE
    MATERIAL:
    C630 BRONZE
    UNITS:
    EACH
    INSIDE DIAMETER IMPERIAL:
    0.3105'
    OUTSIDE DIAMETER IMPERIAL:
    0.501'
    SIZE IMPERIAL:
    STANDARD
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $29.60
    Subtotal:
  • KIBBLEWHITE Guide Valve - +.002 70-0332

    KIBBLEWHITE Guide Valve - +.002 70-0332

    KIBBLEWHITE

    $29.60
    Valve guide wear is one of the most overlooked causes of oil consumption and reduced ring sealing in high-mileage and boosted engines. The KIBBLEWHITE +.002 Guide addresses this by offering precision-engineered replacement with superior material...
    09261669
    SKU:
    09261669
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    APPLICATION:
    INTAKE
    INSIDE DIAMETER IMPERIAL:
    0.3105'
    APPLICATION:
    EXHAUST
    MATERIAL:
    C630 BRONZE
    OUTSIDE DIAMETER IMPERIAL:
    0.503'
    UNITS:
    EACH
    PRODUCT NAME:
    VALVE GUIDE
    RIDING STYLE:
    STREET
    SIZE IMPERIAL:
    OVERSIZE (+0.002')
    $29.60
    Qty in Cart: 0
    Quantity:
    Price:
    $29.60
    Subtotal:
  • KIBBLEWHITE Guide Valve - +.004 70-0333

    KIBBLEWHITE Guide Valve - +.004 70-0333

    KIBBLEWHITE

    $29.60
    Valve guide wear is a silent killer of engine performance, leading to oil consumption, compression loss, and shortened engine life. The KIBBLEWHITE Guide Valve +.004 is engineered from C63000 nickel bronze to deliver the wear resistance and thermal...
    09261670
    SKU:
    09261670
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    APPLICATION:
    INTAKE
    INSIDE DIAMETER IMPERIAL:
    0.3105'
    SIZE IMPERIAL:
    OVERSIZE (+0.004')
    APPLICATION:
    EXHAUST
    OUTSIDE DIAMETER IMPERIAL:
    0.505'
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    MATERIAL:
    C630 BRONZE
    PRODUCT NAME:
    VALVE GUIDE
    Qty in Cart: 0
    Quantity:
    Price:
    $29.60
    Subtotal:
  • KIBBLEWHITE Intake Valve 70-4228

    KIBBLEWHITE Intake Valve 70-4228

    KIBBLEWHITE

    $37.55
    Intake valve performance directly impacts your engine's breathing efficiency, combustion quality, and overall power output. The KIBBLEWHITE Black Diamondâ„¢ valve delivers measurable gains through precision engineering and material science, ensuring...
    09261675
    SKU:
    09261675
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    HEAD DIAMETER METRIC:
    40.64 MM
    PRODUCT NAME:
    VALVE
    STEM DIAMETER IMPERIAL:
    0.3105'
    UNITS:
    EACH
    APPLICATION:
    INTAKE
    MODEL:
    BLACK DIAMONDâ„¢
    RIDING STYLE:
    STREET
    TULIP ANGLE IMPERIAL:
    1.5° R
    LENGTH IMPERIAL:
    3.850'
    MATERIAL:
    CAST IRON
    TULIP ANGLE:
    1,5' R
    $37.55
    Qty in Cart: 0
    Quantity:
    Price:
    $37.55
    Subtotal:
  • KIBBLEWHITE Intake Valve 70-4229

    KIBBLEWHITE Intake Valve 70-4229

    KIBBLEWHITE

    $37.55
    Intake valve performance directly impacts cylinder filling efficiency and combustion consistency—two factors that separate competitive engines from the rest. The Kibblewhite Black Diamond™ Intake Valve (70-4229) delivers measurable gains in flow rate and...
    09261676
    SKU:
    09261676
    Availability:
    Ships Same Business Day
    Weight:
    0.17 LBS
    APPLICATION:
    INTAKE
    LENGTH IMPERIAL:
    3.830'
    MATERIAL:
    CAST IRON
    PRODUCT NAME:
    VALVE
    STEM DIAMETER IMPERIAL:
    0.3105'
    UNITS:
    EACH
    HEAD DIAMETER METRIC:
    42.16 MM
    MODEL:
    BLACK DIAMONDâ„¢
    RIDING STYLE:
    STREET
    TULIP ANGLE:
    1,5' R
    TULIP ANGLE IMPERIAL:
    1.5° R
    $37.55
    Qty in Cart: 0
    Quantity:
    Price:
    $37.55
    Subtotal:
  • KIBBLEWHITE Exhaust Valve 70-4230

    KIBBLEWHITE Exhaust Valve 70-4230

    KIBBLEWHITE

    $37.55
    Exhaust valves endure extreme temperatures and constant cycling—factory units often become a reliability weak point in high-performance engines. The Kibblewhite 70-4230 Black Diamond™ valve eliminates that vulnerability with superior materials and...
    09261677
    SKU:
    09261677
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    APPLICATION:
    EXHAUST
    HEAD DIAMETER METRIC:
    36.58 MM
    STEM DIAMETER IMPERIAL:
    0.3100'
    TULIP ANGLE:
    24°
    UNITS:
    EACH
    MATERIAL:
    STAINLESS STEEL
    MODEL:
    BLACK DIAMONDâ„¢
    PRODUCT NAME:
    VALVE
    LENGTH IMPERIAL:
    3.780'
    RIDING STYLE:
    STREET
    $37.55
    Qty in Cart: 0
    Quantity:
    Price:
    $37.55
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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