Dirt Bike Engine Valves and Parts
Dirt Bike Engine Valves & Parts: Kibblewhite Black Diamond Exhaust Valves & Spring Kits at JJ Motorsports
Upgrade your dirt bike's valvetrain for maximum flow, heat resistance, and durability with premium valves and parts from JJ Motorsports, precision-engineered for superior performance in motocross, enduro, and trail riding. Our selection includes Black Diamond stainless steel exhaust valves, high-RPM spring kits, keepers, seals, and guides designed for increased lift, reduced wear, and reliable operation under extreme valve float conditions. Compatible with popular 4-stroke models like Honda CRF, Yamaha YZ/WR, KTM SX/EXC, and more, these Kibblewhite components feature one-piece forging, nitride coatings, and dual-spring technology to enhance airflow, prevent valve train failure, and support big-bore or high-compression builds. From exhaust valves with swirl-polished stems to titanium retainer spring kits for lightweight strength, rebuild your cylinder head for championship-level power, longevity, and confidence on every rev.
Shop trusted brands like Kibblewhite for race-proven quality. Explore related categories such as dirt bike piston and ring kits for full top-end rebuilds or dirt bike engine for camshafts and gaskets.
Top Dirt Bike Valve & Parts
- Kibblewhite Valve - Exhaust - Black Diamond 30-33616 – One-piece Black Diamond stainless steel exhaust valve with nitride coating, swirl-polished stem, and hard tip; designed for high-RPM durability and flow in 4-stroke engines.
- Kibblewhite Spring Kit 40-41600 – Dual-spring kit with titanium retainers, chromoly seats, and high-strength springs; supports increased lift and RPM while preventing valve float in performance builds.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Hot Cams Valve Shim 7.48mm x 2.60mm for Honda CRF150R 2007-2022 5PK748260
HOT CAMS
$10.95Valve clearance directly impacts engine efficiency, combustion timing, and overall performance—especially critical on high-revving four-strokes like the CRF150R. Hot Cams shims deliver precision sizing to maintain tight tolerances through extended riding...09261330- SKU:
- 09261330
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 2.60 MM
- RIDING STYLE:
- UTV
- TYPE:
- VALVE
- RIDING STYLE:
- ATV
$10.95 -
Hot Cams Valve Shim 7.48mm x 2.55mm for Honda 5PK748255
HOT CAMS
$10.95Valve lash directly impacts engine efficiency, combustion timing, and component longevity—and worn or incorrect shims compromise all three. The Hot Cams 7.48 x 2.55mm valve shims deliver precision-engineered replacements that restore proper valve...09261329- SKU:
- 09261329
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.55 MM
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.90mm for Honda CRF 250R 2004-2017 5PK748190
HOT CAMS
$10.95Valve shim wear directly impacts combustion efficiency and engine longevity—maintaining precise clearances is non-negotiable for consistent performance. The HOT CAMS 7.48mm x 1.90mm shim pack gives you five precision-engineered replacements, eliminating...09261316- SKU:
- 09261316
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.90 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.85mm for Honda CRF150R 2007-2025 5PK748185
HOT CAMS
$10.95Valve clearance directly impacts combustion efficiency, fuel economy, and engine longevity—and worn or incorrect shims rob your CRF150R of all three. This 5-pack of HOT CAMS valve shims gives you the precision components needed to dial in proper...09261315- SKU:
- 09261315
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.85 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.80mm for Honda CRF150R 2007-2022 5PK748180
HOT CAMS
$10.95Valve clearance directly impacts combustion efficiency, fuel economy, and engine longevity—even small deviations can lead to performance loss or costly damage. The Hot Cams Valve Shim 7.48mm x 1.80mm maintains precise clearance specifications on your...09261314- SKU:
- 09261314
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- VALVE
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 1.80 MM
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- OFF-ROAD
$10.95 -
Hot Cams Valve Shim 7.48mm 1.75mm Thickness 5-Pack 5PK748175
HOT CAMS
$10.95Valve clearance directly impacts combustion efficiency, fuel economy, and engine longevity. Over time, valve shims wear and compress, causing improper clearance that leads to poor sealing, reduced power output, and potential valve damage. The HOT CAMS...09261313- SKU:
- 09261313
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.75 MM
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.70mm for Honda CRF 150R 2007-2018 5PK748170
HOT CAMS
$10.95Maintaining proper valve clearance is critical to your CRF 150R's engine longevity and performance—and worn or incorrect shims will cost you reliability. This 5-pack gives you the precision replacements needed to dial in exact clearances and keep your...09261312- SKU:
- 09261312
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 1.70 MM
- PRODUCT NAME:
- SHIM
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.65mm for Honda CRF 150R 2007-2018 5PK748165
HOT CAMS
$10.95Valve clearance directly impacts engine performance, compression, and longevity—and worn or incorrect shims compromise all three. These Hot Cams valve shims maintain precise clearance specifications to keep your CRF 150R running at peak efficiency and...09261311- SKU:
- 09261311
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SHIM
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 1.65 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.60mm for Honda CRF150R 2007-2018 5PK748160
HOT CAMS
$10.95Proper valve clearance is critical to engine longevity and performance—too tight and you risk valve float and bent pushrods; too loose and you'll have excessive valve train noise and lost compression. Hot Cams Valve Shims give you the precision...09261310- SKU:
- 09261310
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.60 MM
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.55mm for Honda CRF150R 2007-2022 5PK748155
HOT CAMS
$10.95Valve clearance drift is one of the easiest maintenance items to overlook—and one of the most costly when ignored. These Hot Cams valve shims maintain precise clearances between your rocker arms and valve stems, ensuring consistent combustion efficiency...09261309- SKU:
- 09261309
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- VALVE SHIM THICKNESS METRIC:
- 1.55 MM
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SHIM
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.50mm for Honda CRF150R 2007-2022 5PK748150
HOT CAMS
$10.95Valve clearance directly impacts combustion efficiency, engine longevity, and power output—and this Hot Cams shim pack gives you the precision tools to dial in your CRF150R's valve train exactly. Whether you're maintaining stock specs or chasing...09261308- SKU:
- 09261308
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 1.50 MM
- TYPE:
- VALVE
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.45mm for Honda CRF150R 2007-2018 5PK748145
HOT CAMS
$10.95Valve clearance directly impacts combustion efficiency, fuel economy, and engine longevity—and shim wear is inevitable with high-performance riding. This Hot Cams 5-pack gives you precision replacements to maintain exact valve timing without guesswork or...09261307- SKU:
- 09261307
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- VALVE SHIM THICKNESS METRIC:
- 1.45 MM
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.40mm for Honda CRF150R 2007-2022 5PK748140
HOT CAMS
$10.95Valve clearance directly impacts your CRF150R's combustion efficiency, power delivery, and engine longevity. Over time, valve shims wear and compress, throwing off critical tolerances—this 5-pack from Hot Cams lets you maintain precise clearance...09261306- SKU:
- 09261306
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 5 PACK
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.40 MM
$10.95 -
Hot Cams Valve Shim 7.48mm x 1.35mm for Honda CRF150R 2007-2018 5PK748135
HOT CAMS
$10.95Valve clearance directly impacts combustion efficiency, engine longevity, and overall performance—even slight deviations can cause loss of power or accelerated wear. The Hot Cams Valve Shim Pack provides precision-engineered replacements to maintain...09261305- SKU:
- 09261305
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 1.35 MM
- TYPE:
- VALVE
$10.95 -
DEL WEST Outer Intake Valve DW-YZ450F-2IV03
DEL WEST
$155.95If you're running a YZ450F at the edge of performance, your valve train is where reliability gets tested hardest. The DEL WEST Outer Intake Valve is engineered to handle the demands of high-RPM off-road competition without compromise. Choose a valve...09261075- SKU:
- 09261075
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MATERIAL:
- TITANIUM
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$155.95 -
DEL WEST Intake Valve DW-YZ450F-1IV03
DEL WEST
$155.95Off-road competition demands intake valves that can handle extreme conditions without compromise. DEL WEST delivers precisely engineered components backed by a proven track record in the most demanding racing environments. When your engine's breathing...09261074- SKU:
- 09261074
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- VALVE
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- UNITS:
- EACH
$155.95 -
DEL WEST Exhaust Valve DW-YZ450F-EV03
DEL WEST
$155.95Exhaust valve reliability is non-negotiable in off-road racing, where extreme temperatures and aggressive throttle cycles demand precision engineering. The DEL WEST DW-YZ450F-EV03 delivers the durability and performance repeatability that...09261072- SKU:
- 09261072
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MATERIAL:
- TITANIUM
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
$155.95Qty in Cart: 0Quantity:Price:$155.95Subtotal: -
DEL WEST Outer Intake Valve DW-YZ250F-2IV02
DEL WEST
$155.95If you're pushing your YZ250F to its limits in competition, valve reliability directly impacts your engine's durability and peak performance. DEL WEST's outer intake valve is engineered to withstand the extreme thermal and mechanical stresses of off-road...09261070- SKU:
- 09261070
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
$155.95 -
DEL WEST Intake Valve DW-YZ250F-1IV02
DEL WEST
$155.95If you're pushing your YZ250F to its limits in competition, valve integrity directly impacts your engine's reliability and peak performance under extreme conditions. DEL WEST intake valves are engineered for the demands of off-road racing, where factory...09261068- SKU:
- 09261068
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
$155.95 -
DEL WEST Exhaust Valve DW-YZ250F-EV02
DEL WEST
$155.95When you're pushing your YZ250F to the limit, valve reliability becomes non-negotiable. DEL West exhaust valves are engineered to withstand the extreme thermal and mechanical stress of high-RPM off-road competition, giving you the durability and...09261067- SKU:
- 09261067
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- TITANIUM
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
$155.95
