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Dirt Bike Rear Suspension

Dirt Bike Rear Suspension

Dirt Bike Rear Suspension

Dirt Bike Rear Suspension Parts: Lowering Rods, Swingarm Bearings & Shock Springs at JJ Motorsports

Upgrade your dirt bike's rear suspension with premium parts from JJ Motorsports, designed for better damping and durability in motocross, enduro, and trail riding. These components improve handling and reduce wear for reliable performance.

Shop Moose Offroad, Moose Racing, and Factory Connection rear suspension parts for durable, easy-to-install upgrades. Explore related categories such as dirt bike suspension for front forks and shocks, or dirt bike frame and body for guards and panels to complete your build and achieve balanced, responsive ride quality across all conditions, from high-speed jumps to technical singletrack.

Top Dirt Bike Rear Suspension Parts

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
  •  MOOSE RACING Shock Spring - 47 mm OD - 30 n/mm - White 1312-0942

    MOOSE RACING Shock Spring - 47 mm OD - 30 n/mm - White 1312-0942

    MOOSE RACING

    $99.95
    Precision shock tuning demands a spring that delivers consistent, predictable performance lap after lap. The MOOSE RACING 47mm shock spring combines superior material science with manufacturing tolerances tight enough for professional competition,...
    13120942
    SKU:
    13120942
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    $99.95
    Qty in Cart: 0
    Quantity:
    Price:
    $99.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 47 mm OD - 35 n/mm - White 1312-0943

    MOOSE RACING Shock Spring - 47 mm OD - 35 n/mm - White 1312-0943

    MOOSE RACING

    $99.95
    A quality shock spring is fundamental to your suspension's ability to handle cornering loads, absorb impacts, and maintain consistent ride height under varying conditions. The MOOSE RACING 47mm shock spring delivers a balanced 35 n/mm spring rate that...
    13120943
    SKU:
    13120943
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $99.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 47 mm OD - 40 n/mm - White 1312-0944

    MOOSE RACING Shock Spring - 47 mm OD - 40 n/mm - White 1312-0944

    MOOSE RACING

    $99.95
    A properly matched shock spring is fundamental to suspension tuning—it directly affects your bike's ride height, handling balance, and overall performance on the track or trail. This Moose Racing spring delivers the consistency and durability you need...
    13120944
    SKU:
    13120944
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    $99.95
    Qty in Cart: 0
    Quantity:
    Price:
    $99.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 47 mm OD - 45 n/mm - White 1312-0945

    MOOSE RACING Shock Spring - 47 mm OD - 45 n/mm - White 1312-0945

    MOOSE RACING

    $99.95
    A properly matched shock spring is critical for maintaining suspension geometry and handling characteristics under racing conditions. The MOOSE RACING 47mm shock spring delivers consistent spring rates with tight tolerance control, ensuring your...
    13120945
    SKU:
    13120945
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $99.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 47 mm OD - 25 n/mm - White 1312-0946

    MOOSE RACING Shock Spring - 47 mm OD - 25 n/mm - White 1312-0946

    MOOSE RACING

    $111.95
    A properly matched shock spring is critical to suspension tuning—it directly influences your vehicle's handling, ride comfort, and overall stability under load. This MOOSE RACING spring delivers consistent spring rates with tight tolerances, ensuring...
    13120946
    SKU:
    13120946
    Availability:
    Ships Same Business Day
    Weight:
    1.54 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 47 mm OD - 30 n/mm - White 1312-0947

    MOOSE RACING Shock Spring - 47 mm OD - 30 n/mm - White 1312-0947

    MOOSE RACING

    $111.95
    A properly matched shock spring is fundamental to suspension tuning—it directly affects your bike's handling responsiveness, rider comfort, and overall chassis stability. The MOOSE RACING 47mm shock spring delivers consistent spring rates within...
    13120947
    SKU:
    13120947
    Availability:
    Ships Same Business Day
    Weight:
    1.85 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 47 mm OD - 35 n/mm - White 1312-0948

    MOOSE RACING Shock Spring - 47 mm OD - 35 n/mm - White 1312-0948

    MOOSE RACING

    $111.95
    A properly tuned shock spring is fundamental to suspension geometry and vehicle handling—this MOOSE RACING unit delivers consistent damping characteristics across your suspension travel without fade or performance degradation. Whether you're tuning a...
    13120948
    SKU:
    13120948
    Availability:
    Ships Same Business Day
    Weight:
    1.85 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 47 mm OD - 45 n/mm - White 1312-0949

    MOOSE RACING Shock Spring - 47 mm OD - 45 n/mm - White 1312-0949

    MOOSE RACING

    $111.95
    A quality shock spring is fundamental to suspension geometry, directly affecting how your vehicle handles load transfer, body roll, and overall ride quality. This MOOSE RACING unit delivers consistent spring rate performance without the compliance issues...
    13120949
    SKU:
    13120949
    Availability:
    Ships Same Business Day
    Weight:
    2.20 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 47 mm OD - 50 n/mm - White 1312-0950

    MOOSE RACING Shock Spring - 47 mm OD - 50 n/mm - White 1312-0950

    MOOSE RACING

    $111.95
    Precision suspension tuning demands a spring that delivers consistent, predictable performance lap after lap. The MOOSE RACING 47mm shock spring combines high-grade materials with strict manufacturing tolerances to give you the reliability and...
    13120950
    SKU:
    13120950
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 55 mm OD - 25 n/mm - Blue 1312-0951

    MOOSE RACING Shock Spring - 55 mm OD - 25 n/mm - Blue 1312-0951

    MOOSE RACING

    $111.95
    Proper spring rates are critical to suspension tuning—too soft and your chassis loses responsiveness, too stiff and you sacrifice traction. The MOOSE RACING 55 mm shock spring delivers precise 25 n/mm rate specifications with ±2.5% accuracy, ensuring...
    13120951
    SKU:
    13120951
    Availability:
    Ships Same Business Day
    Weight:
    1.55 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 55 mm OD - 30 n/mm - Blue 1312-0952

    MOOSE RACING Shock Spring - 55 mm OD - 30 n/mm - Blue 1312-0952

    MOOSE RACING

    $111.95
    Moose Racing shock springs deliver consistent, predictable suspension response through precision engineering and premium materials—critical for maintaining setup stability across multiple heat cycles and track sessions. Whether you're dialing in a...
    13120952
    SKU:
    13120952
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 55 mm OD - 35 n/mm - Blue 1312-0953

    MOOSE RACING Shock Spring - 55 mm OD - 35 n/mm - Blue 1312-0953

    MOOSE RACING

    $111.95
    Moose Racing shock springs deliver consistent, predictable suspension geometry across extreme racing conditions—critical when thousandths of a second separate victory from the field. Built with premium chrome silicone wire and precision heat-treating,...
    13120953
    SKU:
    13120953
    Availability:
    Ships Same Business Day
    Weight:
    2.05 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 55 mm OD - 45 n/mm - Blue 1312-0954

    MOOSE RACING Shock Spring - 55 mm OD - 45 n/mm - Blue 1312-0954

    MOOSE RACING

    $111.95
    Precision suspension tuning demands a shock spring that matches your exact performance requirements—and this MOOSE Racing unit delivers the consistency professional racers and serious enthusiasts depend on. With a 45 n/mm spring rate and 55 mm outer...
    13120954
    SKU:
    13120954
    Availability:
    Ships Same Business Day
    Weight:
    2.40 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 59 mm OD - 30 n/mm - White 1312-0955

    MOOSE RACING Shock Spring - 59 mm OD - 30 n/mm - White 1312-0955

    MOOSE RACING

    $111.95
    Precision shock tuning demands a spring that maintains consistent performance lap after lap. The MOOSE RACING 59mm shock spring delivers the reliability and spring rate accuracy your suspension setup requires, whether you're dialing in a race-ready setup...
    13120955
    SKU:
    13120955
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 35 n/mm OD - White 1312-0956

    MOOSE RACING Shock Spring - 35 n/mm OD - White 1312-0956

    MOOSE RACING

    $111.95
    Suspension geometry demands precision, and this MOOSE RACING shock spring delivers it with uncompromising accuracy. Whether you're fine-tuning lap times or dialing in your setup for competition, a properly-rated spring is fundamental to predictable...
    13120956
    SKU:
    13120956
    Availability:
    Ships Same Business Day
    Weight:
    2.05 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 59 mm OD - 45 n/mm - White 1312-0957

    MOOSE RACING Shock Spring - 59 mm OD - 45 n/mm - White 1312-0957

    MOOSE RACING

    $111.95
    Precise suspension tuning demands a shock spring that delivers consistent performance lap after lap. The MOOSE RACING 59 mm OD shock spring with a 45 n/mm rate combines high-grade materials and strict manufacturing tolerances to keep your setup...
    13120957
    SKU:
    13120957
    Availability:
    Ships Same Business Day
    Weight:
    2.35 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 59 mm OD - 50 n/mm - White 1312-0958

    MOOSE RACING Shock Spring - 59 mm OD - 50 n/mm - White 1312-0958

    MOOSE RACING

    $111.95
    A shock spring's rate directly determines your suspension's ability to control weight transfer and maintain consistent ride height under load. This MOOSE RACING spring delivers the precision consistency you need for repeatable handling—whether you're...
    13120958
    SKU:
    13120958
    Availability:
    Ships Same Business Day
    Weight:
    2.85 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 59 mm OD - 55 n/mm - White 1312-0959

    MOOSE RACING Shock Spring - 59 mm OD - 55 n/mm - White 1312-0959

    MOOSE RACING

    $111.95
    Shock spring performance directly impacts your suspension's ability to absorb energy, maintain chassis control, and transfer power to the track. A properly matched spring rate ensures consistent handling across varying track conditions and load...
    13120959
    SKU:
    13120959
    Availability:
    Ships Same Business Day
    Weight:
    2.85 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 59 mm OD - 60 n/mm - White 1312-0960

    MOOSE RACING Shock Spring - 59 mm OD - 60 n/mm - White 1312-0960

    MOOSE RACING

    $111.95
    A shock spring's rate directly impacts your suspension's ability to manage weight transfer and maintain consistent chassis geometry under load. This MOOSE Racing spring delivers the precise 60 n/mm rate needed for predictable handling and improved tire...
    13120960
    SKU:
    13120960
    Availability:
    Ships Same Business Day
    Weight:
    3.00 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  •  MOOSE RACING Shock Spring - 59/62 mm OD - 40 n/mm - Red 1312-0961

    MOOSE RACING Shock Spring - 59/62 mm OD - 40 n/mm - Red 1312-0961

    MOOSE RACING

    $111.95
    A precision shock spring is the foundation of suspension tuning—get the spring rate wrong, and you're fighting chassis balance, poor feedback, and inconsistent lap times. The MOOSE RACING 59/62 mm shock spring delivers the 40 n/mm rate with the...
    13120961
    SKU:
    13120961
    Availability:
    Ships Same Business Day
    Weight:
    3.75 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • Total: items /

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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.

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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!

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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!

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