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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 - RM125 '99-'00 PRO125

    BOYESEN Pro Series Reed - RM125 '99-'00 PRO125

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    PRO125
    SKU:
    PRO125
    Availability:
    Ships Same Business Day
    Weight:
    0.08 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
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - KX250 '99 PRO124

    BOYESEN Pro Series Reed - KX250 '99 PRO124

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    PRO124
    SKU:
    PRO124
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    TYPE:
    DUAL STAGE
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD-24F PSR122

    BOYESEN Pro Series Reed for RAD-24F PSR122

    BOYESEN

    $64.95
    The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design, Responds quickly and accurately to changes in piston speed for smooth, dependable throttle response, Offers the quickest acceleration any reed can...
    PRO122
    SKU:
    PRO122
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD-01D PSR121

    BOYESEN Pro Series Reed for RAD-01D PSR121

    BOYESEN

    $64.95
    The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design, Responds quickly and accurately to changes in piston speed for smooth, dependable throttle response, Offers the quickest acceleration any reed can...
    PRO121
    SKU:
    PRO121
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    REPLACEMENT REED FOR RAD01D/01E
    $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD-02C PSR120

    BOYESEN Pro Series Reed for RAD-02C PSR120

    BOYESEN

    $64.95
    The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design, Responds quickly and accurately to changes in piston speed for smooth, dependable throttle response, Offers the quickest acceleration any reed can...
    PRO120
    SKU:
    PRO120
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD01B PSR12

    BOYESEN Pro Series Reed for RAD01B PSR12

    BOYESEN

    $64.95
    The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design, Responds quickly and accurately to changes in piston speed for smooth, dependable throttle response, Offers the quickest acceleration any reed can...
    PRO12
    SKU:
    PRO12
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL STAGE
    $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD-34E PSR119

    BOYESEN Pro Series Reed for RAD-34E PSR119

    BOYESEN

    $64.95
    The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design, Responds quickly and accurately to changes in piston speed for smooth, dependable throttle response, Offers the quickest acceleration any reed can...
    PRO119
    SKU:
    PRO119
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    TYPE:
    DUAL STAGE
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD-33D PSR118

    BOYESEN Pro Series Reed for RAD-33D PSR118

    BOYESEN

    $64.95
    The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design, Responds quickly and accurately to changes in piston speed for smooth, dependable throttle response, Offers the quickest acceleration any reed can...
    PRO118
    SKU:
    PRO118
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    REED PETAL
    $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD-12D PSR116

    BOYESEN Pro Series Reed for RAD-12D PSR116

    BOYESEN

    $64.95
    The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design, Responds quickly and accurately to changes in piston speed for smooth, dependable throttle response, Offers the quickest acceleration any reed can...
    PRO116
    SKU:
    PRO116
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • BOYESEN Pro Series Reed for RAD-11F PSR115

    BOYESEN Pro Series Reed for RAD-11F PSR115

    BOYESEN

    $64.95
    The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design, Responds quickly and accurately to changes in piston speed for smooth, dependable throttle response, Offers the quickest acceleration any reed can...
    PRO115
    SKU:
    PRO115
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • BOYESEN Pro Series Reed - KTM PRO114

    BOYESEN Pro Series Reed - KTM PRO114

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    PRO114
    SKU:
    PRO114
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MODEL:
    PRO SERIES
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - KTM125/200 PRO113

    BOYESEN Pro Series Reed - KTM125/200 PRO113

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    PRO113
    SKU:
    PRO113
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - KTM 65 PRO112

    BOYESEN Pro Series Reed - KTM 65 PRO112

    BOYESEN

    $52.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    PRO112
    SKU:
    PRO112
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    PRODUCT NAME:
    REED PETAL
    MATERIAL:
    CARBON FIBER
    BASE COLOR:
    YELLOW
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    $52.95
    Qty in Cart: 0
    Quantity:
    Price:
    $52.95
    Subtotal:
  • BOYESEN Pro Series Reed - CR250 '99-'00 PRO111

    BOYESEN Pro Series Reed - CR250 '99-'00 PRO111

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    PRO111
    SKU:
    PRO111
    Availability:
    Ships Same Business Day
    Weight:
    0.10 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
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - KTM 250 PRO11

    BOYESEN Pro Series Reed - KTM 250 PRO11

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    PRO11
    SKU:
    PRO11
    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 - CR250 PRO02

    BOYESEN Pro Series Reed - CR250 PRO02

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    PRO02
    SKU:
    PRO02
    Availability:
    Ships Same Business Day
    Weight:
    0.75 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 Reed - CR125 PRO01

    BOYESEN Pro Series Reed - CR125 PRO01

    BOYESEN

    $62.95
    Respond quickly and accurately to piston speed changes for smooth, dependable throttle response, High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design, Offer the quickest acceleration any reed can offer; maximizes...
    PRO01
    SKU:
    PRO01
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    UNITS:
    SET
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    RIDING STYLE:
    OFF-ROAD
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Racing Reed - RM250 '01 699

    BOYESEN Racing Reed - RM250 '01 699

    BOYESEN

    $39.95
    Laboratory flow analysis proves Boyesen® dual-stage reeds out-perform standard reeds, They permit greater flow velocity over the entire range of operating pressures, Increased performance from start-up to top acceleration
    699
    SKU:
    699
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    MODEL:
    POWER REED
    TYPE:
    DUAL STAGE
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Racing Reed - RM125 '01-'02 698

    BOYESEN Racing Reed - RM125 '01-'02 698

    BOYESEN

    $39.95
    Laboratory flow analysis proves Boyesen® dual-stage reeds out-perform standard reeds, They permit greater flow velocity over the entire range of operating pressures, Increased performance from start-up to top acceleration
    698
    SKU:
    698
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    MODEL:
    POWER REED
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    OFF-ROAD
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Racing Reed - YZ125 '01-'02 697

    BOYESEN Racing Reed - YZ125 '01-'02 697

    BOYESEN

    $39.95
    Laboratory flow analysis proves Boyesen® dual-stage reeds out-perform standard reeds, They permit greater flow velocity over the entire range of operating pressures, Increased performance from start-up to top acceleration
    697
    SKU:
    697
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    TYPE:
    DUAL STAGE
    MODEL:
    POWER REED
    RIDING STYLE:
    OFF-ROAD
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    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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