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Dirt Bike Air and Fuel

Dirt Bike Air and Fuel

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

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
  • BOYESEN Pro Series Reed - RM250 PRO-97

    BOYESEN Pro Series Reed - RM250 PRO-97

    BOYESEN

    $62.95
    Reed valve response directly impacts throttle control and acceleration in high-RPM environments—and the BOYESEN Pro Series Reed delivers the quickest response in the category. By pairing a lightweight carbon fiber top reed with a durable fiberglass/epoxy...
    PRO97
    SKU:
    PRO97
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD11D PSR96

    BOYESEN Pro Series Reed for RAD11D PSR96

    BOYESEN

    $64.95
    A reed valve's responsiveness directly impacts your engine's ability to accelerate cleanly and maintain consistent power delivery across the RPM range. The BOYESEN Pro Series Reed combines cutting-edge carbon fiber construction with proven dual-stage...
    PRO96
    SKU:
    PRO96
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    BASE COLOR:
    YELLOW
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD02B PSR-91

    BOYESEN Pro Series Reed for RAD02B PSR-91

    BOYESEN

    $64.95
    Reed valve performance directly impacts throttle response, acceleration, and overall engine efficiency—especially in high-RPM applications where every millisecond counts. The Boyesen Pro Series Reed delivers the rapid piston-speed response your engine...
    PRO91
    SKU:
    PRO91
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    MODEL:
    PRO SERIES
    $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • On Sale
    BOYESEN Pro Series Reed - RM250 PSR-89

    BOYESEN Pro Series Reed - RM250 PSR-89

    BOYESEN

    MSRP: $64.95
    Now: $42.00
    Was: $64.95
    Reed valves are the heartbeat of two-stroke performance, and the Boyesen Pro Series delivers the fastest throttle response and peak power available. If you're running an RM250 and want measurable gains in acceleration and horsepower without sacrificing...
    PRO89
    SKU:
    PRO89
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    MSRP: $64.95
    Now: $42.00
    Was: $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $64.95
    Now: $42.00
    Was: $64.95
    Subtotal:
  • BOYESEN Pro Series Reed - KX60 '83-'04 PRO73

    BOYESEN Pro Series Reed - KX60 '83-'04 PRO73

    BOYESEN

    $52.95
    Boyesen Pro Series reeds give you the throttle response and acceleration that separates competitive riders from the rest of the field. The dual-stage carbon fiber and fiberglass construction delivers maximum horsepower and torque without compromising...
    PRO73
    SKU:
    PRO73
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    $52.95
    Qty in Cart: 0
    Quantity:
    Price:
    $52.95
    Subtotal:
  • BOYESEN Pro Series Reed - KX250 PRO72

    BOYESEN Pro Series Reed - KX250 PRO72

    BOYESEN

    $62.95
    Stock reeds limit your KX250's potential, causing hesitation during throttle transitions and leaving horsepower on the table. The Boyesen Pro Series Reed delivers crisp, immediate response to piston speed changes—giving you the acceleration edge that...
    PRO72
    SKU:
    PRO72
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - Yamaha PRO64

    BOYESEN Pro Series Reed - Yamaha PRO64

    BOYESEN

    $62.95
    If you're running a two-stroke engine that demands instant throttle response and peak power delivery, reed quality directly impacts your acceleration and overall performance. The Boyesen Pro Series Reed delivers the fastest piston speed response...
    PRO64
    SKU:
    PRO64
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    BASE COLOR:
    YELLOW
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reeds - RM80 PRO-61

    BOYESEN Pro Series Reeds - RM80 PRO-61

    BOYESEN

    $57.95
    Reed quality directly impacts throttle response, acceleration, and peak horsepower in two-stroke engines. The Boyesen Pro Series addresses the fundamental problem with traditional carbon fiber reeds: durability compromised for performance. This hybrid...
    PRO61
    SKU:
    PRO61
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    Qty in Cart: 0
    Quantity:
    Price:
    $57.95
    Subtotal:
  • BOYESEN Pro Series Reeds - CR80 PRO-60

    BOYESEN Pro Series Reeds - CR80 PRO-60

    BOYESEN

    $57.95
    If you're running a CR80 and want measurable gains in throttle response and acceleration, the BOYESEN Pro Series Reeds deliver the quick spool-up and power band consistency that separates competitive riders from the rest. The dual-stage reed design...
    PRO60
    SKU:
    PRO60
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    $57.95
    Qty in Cart: 0
    Quantity:
    Price:
    $57.95
    Subtotal:
  • BOYESEN Pro Series Reeds - KX80 PRO-59

    BOYESEN Pro Series Reeds - KX80 PRO-59

    BOYESEN

    $57.95
    If you're serious about maximizing your KX80's acceleration and throttle responsiveness, reed quality directly impacts how quickly your engine responds to input. The BOYESEN Pro Series Reeds use a dual-stage carbon fiber and fiberglass design that tracks...
    PRO59
    SKU:
    PRO59
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    $57.95
    Qty in Cart: 0
    Quantity:
    Price:
    $57.95
    Subtotal:
  • BOYESEN Pro Series Reeds - YZ80 PRO-58

    BOYESEN Pro Series Reeds - YZ80 PRO-58

    BOYESEN

    $57.95
    If you're running a YZ80 and want measurable gains in throttle response and acceleration, reed quality directly impacts your engine's ability to breathe. The BOYESEN Pro Series Reeds use a precision dual-stage design with carbon fiber construction to...
    PRO58
    SKU:
    PRO58
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    BASE COLOR:
    YELLOW
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    $57.95
    Qty in Cart: 0
    Quantity:
    Price:
    $57.95
    Subtotal:
  • BOYESEN Pro Series Reed - CR500 PRO-56

    BOYESEN Pro Series Reed - CR500 PRO-56

    BOYESEN

    $69.95
    If you're running a CR500 at the edge of performance, your reed valve assembly directly impacts how quickly your engine responds to throttle input and how much power you're actually making. The Boyesen Pro Series Reed elevates both metrics by pairing...
    PRO56
    SKU:
    PRO56
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BASE COLOR:
    YELLOW
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    $69.95
    Qty in Cart: 0
    Quantity:
    Price:
    $69.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD-14XA PSR-54

    BOYESEN Pro Series Reed for RAD-14XA PSR-54

    BOYESEN

    $64.95
    If you're running a RAD-14XA PSR-54 and want measurable gains in throttle response and acceleration, the Boyesen Pro Series Reed delivers where it matters—on the track. The dual-stage carbon fiber design responds instantly to piston speed changes, giving...
    PRO54
    SKU:
    PRO54
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • BOYESEN Pro Series Reed - YZ125 PRO-53

    BOYESEN Pro Series Reed - YZ125 PRO-53

    BOYESEN

    $62.95
    Reed valve performance directly impacts throttle response and peak power delivery on high-revving two-stroke engines. The Boyesen Pro Series Reed uses a dual-stage carbon fiber and fiberglass construction that responds instantly to piston speed changes,...
    PRO53
    SKU:
    PRO53
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    TYPE:
    DUAL STAGE
    RIDING STYLE:
    OFF-ROAD
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - KX125 PRO-52

    BOYESEN Pro Series Reed - KX125 PRO-52

    BOYESEN

    $62.95
    If you're running a KX125 and want to unlock quicker throttle response with measurable gains in acceleration, the Boyesen Pro Series Reed is engineered to deliver. The dual-stage design responds instantly to piston speed changes, translating into the...
    PRO52
    SKU:
    PRO52
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD13 PSR-50

    BOYESEN Pro Series Reed for RAD13 PSR-50

    BOYESEN

    $66.95
    If you're serious about maximizing low-end response and acceleration on your RAD13, reed design matters—a lot. The Boyesen Pro Series Reed leverages carbon fiber construction with a dual-stage design that responds precisely to piston speed changes,...
    PRO50
    SKU:
    PRO50
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    $66.95
    Qty in Cart: 0
    Quantity:
    Price:
    $66.95
    Subtotal:
  • BOYESEN Pro Series Reed - YZ125 PRO-49

    BOYESEN Pro Series Reed - YZ125 PRO-49

    BOYESEN

    $62.95
    Stock reeds can't keep pace with your engine's demand for air, especially during aggressive throttle transitions. The Boyesen Pro Series Reed delivers instantaneous response to piston speed changes, translating into measurable gains in acceleration and...
    PRO49
    SKU:
    PRO49
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    BASE COLOR:
    YELLOW
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - KX500 PRO-45

    BOYESEN Pro Series Reed - KX500 PRO-45

    BOYESEN

    $69.95
    If you're running a KX500, your reed valve design directly controls how quickly your engine responds to throttle input and how much power you can extract at peak RPM. The Boyesen Pro Series Reed delivers measurably faster piston speed response through...
    PRO45
    SKU:
    PRO45
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    $69.95
    Qty in Cart: 0
    Quantity:
    Price:
    $69.95
    Subtotal:
  • BOYESEN Pro Series Reed - CR125 PRO-43

    BOYESEN Pro Series Reed - CR125 PRO-43

    BOYESEN

    $62.95
    If you're chasing faster acceleration and sharper throttle response on your CR125, reed quality directly impacts your power delivery. The Boyesen Pro Series Reed uses a proven dual-stage design that reacts instantly to piston speed changes, giving you...
    PRO43
    SKU:
    PRO43
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD30B PSR-173

    BOYESEN Pro Series Reed for RAD30B PSR-173

    BOYESEN

    $56.95
    Your engine's throttle response and acceleration depend entirely on reed valve performance, and the BOYESEN Pro Series Reed delivers the quick, precise action that separates competitive machines from the rest. The dual-stage carbon fiber design responds...
    PRO173
    SKU:
    PRO173
    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
    $56.95
    Qty in Cart: 0
    Quantity:
    Price:
    $56.95
    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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