Dirt Bike Air and Fuel
Dirt Bike Air & Fuel Systems at JJ Motorsports
Optimize your bike’s performance with high-quality air and fuel components from JJ Motorsports. Browse air filters, carburetors, and fuel system parts engineered to deliver clean airflow and a consistent fuel mix for peak efficiency. Ensure your bike runs smoothly by pairing these with other essential off-road dirt bike accessories.
Shop trusted brands like Motion Pro for cables and Uni Filter for high-flow filters. Explore related categories such as Dirt Bike Engine Parts for rebuilds or Dirt Bike Exhaust for complete tuning.
Top Dirt Bike Air & Fuel Products
- MOTION PRO Clutch Cable - Honda - Black Vinyl 02-0603 – Nylon-lined for smooth operation and OEM fit.
- UNI FILTER Filter - GS550/650 Miscellaneous NU-2439 – High-flow foam for better air intake and easy cleaning.
- MIKUNI Main Jet - 4-Pack N100604-1025 – Precision jets for VM16, HS40, HSR42/45/48 carbs.
- DYNOJET Power Vision 3 - Yamaha PV3-22-16 – Flash tunes with real-time data display for Yamaha models.
- UNI FILTER Filter - GS650G/GL/M NU-2440 – Precision fit with indefinite service life for Suzuki GS models.
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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BOYESEN Pro Series Reed for RAD24I PSR-172
BOYESEN
$69.95If you're serious about extracting maximum performance from your two-stroke engine, reed valve quality directly impacts throttle response, acceleration, and horsepower delivery. The Boyesen Pro Series Reed leverages proven dual-stage reed technology with...PRO172- SKU:
- PRO172
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- RIDING STYLE:
- OFF-ROAD
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
BOYESEN Pro Series Reed for RAD12G PSR-169
BOYESEN
$69.95The Boyesen Pro Series Reed delivers the throttle responsiveness and power gains you need to stay competitive on the track. By combining carbon fiber's lightweight performance with dual-stage reed engineering, this component responds instantly to piston...PRO169- SKU:
- PRO169
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
BOYESEN Pro Series Reed - YZ85 '02-'16 PRO-165
BOYESEN
$57.95The Boyesen Pro Series Reed delivers measurable gains in throttle response and acceleration by adapting instantly to changing piston speeds—critical for competitive riding where split-second power delivery separates winners from the field. The dual-stage...PRO165- SKU:
- PRO165
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- PRODUCT NAME:
- REED PETAL
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MATERIAL:
- CARBON FIBER
$57.95Qty in Cart: 0Quantity:Price:$57.95Subtotal: -
BOYESEN Pro Series Reed - RM85 '02-'16 PRO-164
BOYESEN
$57.95If you're running an RM85 and want measurable gains in throttle response and acceleration, the Boyesen Pro Series Reed is the upgrade that delivers. The dual-stage carbon fiber design responds instantly to piston speed changes, giving you the crisp,...PRO164- SKU:
- PRO164
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REED PETAL
$57.95 -
BOYESEN Pro Series Reed - CR250 '02 PRO-163
BOYESEN
$69.95If you're chasing lap times on a CR250, your reed valve system is the gatekeeper to throttle response and power delivery. The Boyesen Pro Series Reed delivers lightning-quick piston speed compensation with a carbon fiber top reed paired to a reinforced...PRO163- SKU:
- PRO163
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
$69.95 -
BOYESEN Pro Series Reed for RAD21C PSR16
BOYESEN
$64.95Reed valve performance directly impacts throttle response and acceleration in high-RPM applications, making it critical for racers and tuners who demand consistent power delivery. The BOYESEN Pro Series Reed delivers the fastest acceleration available...PRO16- SKU:
- PRO16
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- PRODUCT NAME:
- REED PETAL
$64.95 -
BOYESEN Pro Series Reed - YZ250 '01-'02 PRO-157
BOYESEN
$62.95Stock reeds become a bottleneck once you start pushing your YZ250's engine. The BOYESEN Pro Series Reed responds instantly to throttle inputs and maximizes fuel charge delivery across the entire powerband—translating directly to faster acceleration and...PRO157- SKU:
- PRO157
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- PRO SERIES
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
$62.95 -
BOYESEN Pro Series Reed - KTM125 '03-'05 PRO154
BOYESEN
$62.95If you're running a KTM 125 and want crisp throttle response without sacrificing reed longevity, the Boyesen Pro Series delivers exactly that. The dual-stage design pairs a high-response carbon fiber top reed with a reinforced fiberglass/epoxy bottom...PRO154- SKU:
- PRO154
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
$62.95 -
BOYESEN Pro Series Reed - KX125 '01-'02 PRO152
BOYESEN
$62.95The Boyesen Pro Series Reed delivers measurable gains in throttle response and acceleration by reacting instantly to piston speed changes—critical for maintaining competitive edge on the track. Built with a carbon fiber top reed paired with a...PRO152- SKU:
- PRO152
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- REED PETAL
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
$62.95 -
BOYESEN Pro Series Reed for RAD12A PSR15
BOYESEN
$66.95Precision throttle response separates competitive racers from the rest of the field. The Boyesen Pro Series Reed delivers exactly that—instantaneous piston speed recognition that translates to measurable gains in acceleration and horsepower without...PRO15- SKU:
- PRO15
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- PRODUCT NAME:
- REED PETAL
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- BASE COLOR:
- YELLOW
- UNITS:
- SET
- MATERIAL:
- CARBON FIBER
$66.95 -
BOYESEN Pro Series Reed - YZ125 '01 PRO147
BOYESEN
$62.95If you're chasing peak throttle response and acceleration on your YZ125, reed quality directly impacts your power delivery. The Boyesen Pro Series Reed delivers the fastest intake response in its class by pairing a high-tech carbon fiber top reed with a...PRO147- SKU:
- PRO147
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal: -
BOYESEN Pro Series Reed - YZ125 PRO141
BOYESEN
$62.95If you're serious about extracting maximum power from your YZ125, reed quality directly impacts throttle response and acceleration. The Boyesen Pro Series Reed delivers the fastest intake valve response on the market by pairing high-tech carbon fiber...PRO141- SKU:
- PRO141
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- TYPE:
- DUAL STAGE
- UNITS:
- SET
$62.95 -
BOYESEN Pro Series Reed for RAD33E PSR140
BOYESEN
$64.95The Boyesen Pro Series Reed delivers measurable gains in throttle response and acceleration by pairing carbon fiber top reed technology with a reinforced fiberglass/epoxy bottom reed—a hybrid design that eliminates the durability trade-offs of...PRO140- SKU:
- PRO140
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
BOYESEN Pro Series Reed for RAD11C PSR14
BOYESEN
$64.95The BOYESEN Pro Series Reed delivers the throttle response and acceleration you need when every millisecond counts on the track. By combining a carbon fiber top reed with a reinforced fiberglass/epoxy bottom reed, this dual-stage design maintains...PRO14- SKU:
- PRO14
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BASE COLOR:
- YELLOW
- UNITS:
- SET
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- PRODUCT NAME:
- REED PETAL
- MATERIAL:
- CARBON FIBER
$64.95 -
BOYESEN Pro Series Reed - KX65 PRO139
BOYESEN
$52.95Precise throttle response separates competitive racers from the rest of the field—and the BOYESEN Pro Series Reed delivers exactly that. By pairing high-tech carbon fiber with a reinforced fiberglass base, this dual-stage design maximizes acceleration...PRO139- SKU:
- PRO139
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
$52.95 -
BOYESEN Pro Series Reed - KX250 PRO134
BOYESEN
$62.95If you're running a KX250 and want measurable gains in throttle response and acceleration, the BOYESEN Pro Series Reed delivers the kind of responsive power that separates competitive riders from the rest. The dual-stage reed design responds instantly to...PRO134- SKU:
- PRO134
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal: -
BOYESEN Pro Series Reed for RAD12E PSR133
BOYESEN
$64.95If you're serious about maximizing small-displacement two-stroke performance, reed valve design directly controls how quickly your engine responds to throttle input and builds power through the RPM band. The Boyesen Pro Series Reed delivers...PRO133- SKU:
- PRO133
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- REED PETAL
- MATERIAL:
- CARBON FIBER
- BASE COLOR:
- YELLOW
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
BOYESEN Pro Series Reed for RAD02A PSR13
BOYESEN
$64.95If you're running a two-stroke engine, your reed valve is the gatekeeper between maximum power and wasted potential. The BOYESEN Pro Series Reed delivers precise throttle response and rapid acceleration by optimizing how your piston speed translates into...PRO13- SKU:
- PRO13
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- REED PETAL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DUAL STAGE
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- UNITS:
- SET
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
BOYESEN Pro Series Reed for RAD30A PSR129
BOYESEN
$56.95A reed valve is only as good as its response time, and the Boyesen Pro Series delivers throttle accuracy that directly translates to faster acceleration and peak horsepower. If you're running the RAD30A carb, upgrading to carbon fiber reeds eliminates...PRO129- SKU:
- PRO129
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REPLACEMENT REED FOR RAD30A
- BASE COLOR:
- YELLOW
- MATERIAL:
- CARBON FIBER
- TYPE:
- DUAL STAGE
- UNITS:
- SET
- MODEL:
- PRO SERIES
$56.95 -
BOYESEN Pro Series Reed - YZ250 '99-'00 PRO126
BOYESEN
$62.95The stock reed valve is often the first bottleneck in two-stroke performance—it can't keep pace with aggressive piston speeds, causing hesitation and power loss. The Boyesen Pro Series Reed eliminates that constraint with a dual-stage carbon fiber design...PRO126- SKU:
- PRO126
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- CARBON FIBER
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- REED PETAL
- TYPE:
- DUAL STAGE
- UNITS:
- SET
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal:
