Dirt Bike Cams and Parts
Dirt Bike Camshafts & Cam Chains for Honda, Yamaha, KTM & Suzuki at JJ Motorsports
Unlock more power, better throttle response, and improved top-end performance with premium camshafts and cam chains from JJ Motorsports. Our selection includes Hot Cams performance camshafts (Stage 1, Stage 2 intake/exhaust profiles) and Moose Racing heavy-duty timing chains, all engineered for maximum lift, duration, and reliability in motocross, enduro, and trail riding. Compatible with top models like Honda CRF250R/450R, Yamaha YZ250F/450F, KTM SX/EXC, and Suzuki RM-Z, these high-quality components deliver noticeable gains in mid-range torque or high-RPM horsepower while maintaining valve train stability under extreme conditions. Whether you're refreshing a tired motor or building a full race engine, Hot Cams drop-in profiles and Moose's DID-spec chains provide the durability and precision needed for championship-level results without valve clearance issues.
Shop the best dirt bike cams and timing chains at JJ Motorsports with fast shipping and expert support. Explore related categories such as dirt bike engine rebuild kits for complete top-end refreshes or dirt bike valves and parts for full valve train upgrades.
Top Dirt Bike Camshafts & Cam Chains
- Moose Offroad Cam Chain DID25H x 100 Links MSEHCDID25H100 – Heavy-duty DID-spec timing chain for extended life and reduced stretch; perfect for Honda CRF and Yamaha YZ models.
- Hot Cams Stage 1 Intake Camshaft 4012-1IN – Stage 1 intake cam for improved mid-range power and throttle response; drop-in design, no valve spring changes required.
- Hot Cams Stage 2 Exhaust Camshaft 2068-2E – Aggressive Stage 2 exhaust profile for maximum top-end horsepower; ideal for race builds and big-bore applications.
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
-
Hot Cams Exhaust Camshaft Stage 1 & 2 Yamaha YZ250F 2019-2020 HC00122
HOT CAMS
$283.95If you're running a Yamaha YZ250F and want measurable gains in throttle response and midrange power, a quality exhaust camshaft is one of the highest-ROI upgrades available. This Hot Cams Stage 1 & 2 design delivers quicker acceleration off the bottom...09251600- SKU:
- 09251600
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
$283.95 -
Hot Cams Stage 2 Intake Camshaft for Yamaha YZ250F 2019-2020 HC00125
HOT CAMS
$254.95If you're running a YZ250F and want tangible performance gains without a complete engine rebuild, the Hot Cams Stage 2 Intake Camshaft delivers measurable mid to top-end power increases where it matters most—on the track. This is a bolt-on upgrade that...09251601- SKU:
- 09251601
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$254.95 -
Hot Cams Camshaft Chain Roller Kit Honda CRF100F 2004-2009 2011-2013 HCDID25H090
HOT CAMS
$43.95A worn or failing camshaft chain roller can cause timing issues, increased engine noise, and catastrophic internal damage if it fails completely. The Hot Cams roller kit replaces critical wear points in your CRF100F's valve train with heat-treated...09251604- SKU:
- 09251604
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
$43.95 -
On Sale
TMV Camchain Tensioner 138361060
TMV
MSRP: $110.95Now: $71.00Was: $110.95A worn camchain tensioner compromises valve timing precision and can escalate into catastrophic engine damage if left unaddressed. The TMV Camchain Tensioner 138361060 restores optimal chain tension, ensuring reliable valve actuation and protecting your...09220177- SKU:
- 09220177
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- TENSIONER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CAM CHAIN
MSRP: $110.95Now: $71.00Was: $110.95 -
TMV Camchain Tensioner - Blue 138101012BU
TMV
$108.95Excessive timing chain slack is a silent killer—it allows the chain to slap against guides and can force your pistons and valves into catastrophic contact. The TMV Camchain Tensioner eliminates this dangerous play, keeping your timing chain under...09251322- SKU:
- 09251322
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- BLUE
- PRODUCT NAME:
- CAM CHAIN TENSIONER
$108.95 -
TMV Camchain Tensioner - Orange 138101012OR
TMV
$108.95Excessive timing chain slack is a silent killer—it allows destructive movement between your crankshaft and camshaft, risking catastrophic piston-to-valve contact and engine failure. The TMV Camchain Tensioner eliminates this dangerous play, maintaining...09251323- SKU:
- 09251323
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- BASE COLOR:
- ORANGE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CAM CHAIN TENSIONER
- UNITS:
- EACH
$108.95 -
MOOSE RACING Cam Chain 250-0006
MOOSE RACING
$7.95A cam chain is critical to your engine's valve timing accuracy—failure here means catastrophic internal damage. The MOOSE RACING 250-0006 delivers OEM-equivalent reliability with premium materials and precision engineering, ensuring consistent...09250800- SKU:
- 09250800
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- NUMBER OF LINKS:
- 122
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BASE FINISH:
- RAW
- TYPE:
- CAM
- CHAIN SIZE:
- 92RH10
- PRODUCT NAME:
- CHAIN
- MODEL:
- SILENT
$7.95Qty in Cart: 0Quantity:Price:$7.95Subtotal: -
POWERSTANDS RACING Cam Chain Tensioner 03-02000-29
POWERSTANDS RACING
$74.95The OEM automatic tensioner is a common failure point that compromises engine timing and accelerates wear on your cam chain and valvetrain. POWERSTANDS Racing's billet aluminum tensioner eliminates hydraulic pressure fluctuations and provides consistent,...09250786- SKU:
- 09250786
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- TENSIONER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CAM CHAIN
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- TYPE:
- MANUAL
$74.95 -
POWERSTANDS RACING Cam Chain Tensioner 03-02001-29
POWERSTANDS RACING
$74.95OEM automatic cam chain tensioners are notorious for wear, inconsistent tension, and timing problems that compromise engine reliability and performance. The POWERSTANDS RACING cam chain tensioner eliminates these issues with a precision-engineered...09250787- SKU:
- 09250787
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- PRODUCT NAME:
- TENSIONER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CAM CHAIN
- TYPE:
- MANUAL
$74.95 -
POWERSTANDS RACING Cam Chain Tensioner 04-02002-29
POWERSTANDS RACING
$74.95OEM automatic cam chain tensioners are prone to hydraulic failure, leading to timing inconsistencies and premature engine wear. The POWERSTANDS RACING cam chain tensioner eliminates these issues with a precision CNC-machined design that maintains...09250790- SKU:
- 09250790
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- TENSIONER
- TYPE:
- MANUAL
- RIDING STYLE:
- ATV
- TYPE:
- CAM CHAIN
- UNITS:
- EACH
$74.95 -
POWERSTANDS RACING Cam Chain Tensioner 05-02000-29
POWERSTANDS RACING
$74.95Factory cam chain tensioners are prone to hydraulic degradation, leading to timing slip and premature wear on your engine's most critical components. The POWERSTANDS RACING Cam Chain Tensioner replaces the OEM automatic tensioner with a...09250793- SKU:
- 09250793
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- TENSIONER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CAM CHAIN
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TYPE:
- MANUAL
$74.95Qty in Cart: 0Quantity:Price:$74.95Subtotal: -
POWERSTANDS RACING Cam Chain Tensioner - MX GM 08-02000-28
POWERSTANDS RACING
$74.95A worn or failing cam chain tensioner introduces timing inconsistencies that compromise engine efficiency and accelerate internal wear. This POWERSTANDS Racing billet aluminum tensioner eliminates the unpredictability of automatic tensioning systems,...09251260- SKU:
- 09251260
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CAM CHAIN TENSIONER
- UNITS:
- EACH
$74.95 -
Hot Cams Stage 1 Intake Camshaft for Yamaha YZ250F 2001-2013 4012-1IN
HOT CAMS
$335.95If you're running a YZ250F and want measurable gains in low-end torque and throttle response, the Hot Cams Stage 1 Intake Camshaft is a bolt-on upgrade that delivers without requiring valve spring replacement. This cam's ITR technology sharpens your...YZ250S1AI- SKU:
- YZ250S1AI
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- INTAKE DURATION IMPERIAL:
- 249°
- INTAKE LIFT METRIC:
- 8.48 MM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CAMSHAFT
$335.95 -
Hot Cams Stage 1 Intake Camshaft for Yamaha WR 400 F 1998-2000 4002-1IN
HOT CAMS
$294.95If you're running a WR 400 F and want genuine low-end grunt without compromising reliability, the Hot Cams Stage 1 intake camshaft is the straightforward upgrade that delivers. This is a bolt-on cam that works with your stock valve springs, meaning you...YZ426S1AI- SKU:
- YZ426S1AI
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- CAMSHAFT
- INTAKE LIFT METRIC:
- 8.80 MM
- INTAKE DURATION IMPERIAL:
- 260°
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$294.95 -
Hot Cams Stage 1 Camshaft for Honda XR650R 2000-2007 1009-1
HOT CAMS
$391.95If you're running an XR650R and want noticeable gains in low-end torque without breaking compatibility with your stock valve springs, the Hot Cams Stage 1 delivers exactly that—a bolt-on power upgrade that puts more grunt where you need it most. This cam...XR650S1A- SKU:
- XR650S1A
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- INTAKE DURATION IMPERIAL:
- 254°
- EXHAUST DURATION IMPERIAL:
- 251°
- INTAKE LIFT METRIC:
- 9.26 MM
- TYPE:
- STAGE 1
- APPLICATION:
- EXHAUST
- EXHAUST LIFT METRIC:
- 9.20 MM
- PRODUCT NAME:
- CAMSHAFT
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$391.95Qty in Cart: 0Quantity:Price:$391.95Subtotal: -
Hot Cams Stage 2 Camshaft for 2000-2007 Honda XR650R 1010-2
HOT CAMS
$391.95If you're running a 2000-2007 Honda XR650R and want measurable gains in peak horsepower and throttle response, the Hot Cams Stage 2 Camshaft is the most direct path to real performance. This is a drop-in upgrade engineered to work with your stock valve...XR650S2A- SKU:
- XR650S2A
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- APPLICATION:
- INTAKE
- EXHAUST LIFT METRIC:
- 9.50 MM
- INTAKE LIFT METRIC:
- 9.57 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- INTAKE DURATION IMPERIAL:
- 265°
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 2
- EXHAUST DURATION IMPERIAL:
- 260°
$391.95 -
Hot Cams Exhaust Camshaft for Suzuki RM-Z450 2015-2017 2321-1E
HOT CAMS
$289.95If you're serious about extracting maximum performance from your RM-Z450, a quality exhaust camshaft is essential—it directly controls valve timing and lift, which determines how efficiently your engine breathes at every RPM. The Hot Cams 2321-1E is...09251195- SKU:
- 09251195
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- EXHAUST DURATION IMPERIAL:
- 248.35°
- RIDING STYLE:
- OFF-ROAD
- EXHAUST LIFT METRIC:
- 9.70 MM
- TYPE:
- STAGE 1
- PRODUCT NAME:
- CAMSHAFT
$289.95 -
Hot Cams Stage 2 Intake Camshaft for Yamaha YZ250F 2017-2018 4326-2IN
HOT CAMS
$289.95If you're running a YZ250F in competitive racing or high-demand trail conditions, your stock camshaft is leaving power on the table. The Hot Cams Stage 2 Intake Camshaft delivers measurable gains across the RPM band while maintaining the simplicity of a...09251199- SKU:
- 09251199
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- INTAKE LIFT METRIC:
- 9.91 MM
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 2
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- INTAKE DURATION IMPERIAL:
- 256.89°
- RIDING STYLE:
- OFF-ROAD
$289.95Qty in Cart: 0Quantity:Price:$289.95Subtotal: -
Hot Cams Exhaust Camshaft for Yamaha YZ250F 2017-2018 4327-2E
HOT CAMS
$289.95If you're serious about extracting maximum performance from your YZ250F, cam selection directly impacts how your engine delivers power across the entire RPM band. The HOT CAMS Exhaust Camshaft 4327-2E is engineered to optimize both low-end torque...09251200- SKU:
- 09251200
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 2
- EXHAUST LIFT METRIC:
- 9.02 MM
- UNITS:
- EACH
- EXHAUST DURATION IMPERIAL:
- 252.83°
- RIDING STYLE:
- OFF-ROAD
$289.95 -
Hot Cams Camshaft for Honda CRF 450 R 2010-2016 1259-1
HOT CAMS
$448.95Stock camshaft profiles limit your CRF 450 R's potential, leaving horsepower and throttle response on the table. The HOT CAMS 1259-1 delivers measurable gains across the powerband while maintaining compatibility with your existing valve springs—no spring...09250843- SKU:
- 09250843
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- INTAKE DURATION IMPERIAL:
- 236°
- PRODUCT NAME:
- CAMSHAFT
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- EXHAUST LIFT METRIC:
- 8.57 MM
- INTAKE LIFT METRIC:
- 9.58 MM
- TYPE:
- STAGE 1
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- EXHAUST DURATION IMPERIAL:
- 270°
$448.95
