Select Your Ride

1
2
3

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 - 63 mm OD - 63 n/mm - White 1312-0985

    MOOSE RACING Shock Spring - 63 mm OD - 63 n/mm - White 1312-0985

    MOOSE RACING

    $111.95
    A properly tuned suspension demands springs engineered to exact specifications, and this Moose Racing shock spring delivers the precision and durability required for consistent track performance. With a 63 n/mm rate and premium construction standards, it...
    13120985
    SKU:
    13120985
    Availability:
    Ships Same Business Day
    Weight:
    4.60 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 63 mm OD - 66 n/mm - White 1312-0986

    MOOSE RACING Shock Spring - 63 mm OD - 66 n/mm - White 1312-0986

    MOOSE RACING

    $111.95
    A shock spring is the foundation of your suspension's ability to absorb impacts and maintain control during hard cornering and aggressive acceleration. The MOOSE RACING 63 mm spring delivers consistent damping force across the full range of suspension...
    13120986
    SKU:
    13120986
    Availability:
    Ships Same Business Day
    Weight:
    4.40 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 42 n/mm - Red 1312-0987

    MOOSE RACING Shock Spring - 64/66 mm OD - 42 n/mm - Red 1312-0987

    MOOSE RACING

    $111.95
    A properly tuned shock spring is critical to your suspension's responsiveness and handling consistency, especially in high-stress racing conditions. This MOOSE RACING spring delivers the precise 42 n/mm rate you need for predictable compression and...
    13120987
    SKU:
    13120987
    Availability:
    Ships Same Business Day
    Weight:
    3.30 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 45 n/mm - Red 1312-0988

    MOOSE RACING Shock Spring - 64/66 mm OD - 45 n/mm - Red 1312-0988

    MOOSE RACING

    $111.95
    A properly tuned suspension spring is fundamental to consistent lap times and predictable handling characteristics. The MOOSE RACING 45 n/mm shock spring delivers the spring rate stability and material durability required for repetitive high-performance...
    13120988
    SKU:
    13120988
    Availability:
    Ships Same Business Day
    Weight:
    3.50 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 54 n/mm - Red 1312-0991

    MOOSE RACING Shock Spring - 64/66 mm OD - 54 n/mm - Red 1312-0991

    MOOSE RACING

    $111.95
    Moose Racing shock springs deliver consistent, predictable suspension performance through precision engineering and rigorous quality control. Whether you're fine-tuning your setup for track conditions or building a reliable daily driver, this 54 n/mm...
    13120991
    SKU:
    13120991
    Availability:
    Ships Same Business Day
    Weight:
    3.65 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 57 n/mm - Red 1312-0992

    MOOSE RACING Shock Spring - 64/66 mm OD - 57 n/mm - Red 1312-0992

    MOOSE RACING

    $111.95
    Suspension tuning demands precision, and this MOOSE RACING shock spring delivers exactly that with consistent spring rates and proven durability across demanding race conditions. Whether you're fine-tuning lap times or dialing in your setup for variable...
    13120992
    SKU:
    13120992
    Availability:
    Ships Same Business Day
    Weight:
    3.95 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 60 n/mm - Red 1312-0993

    MOOSE RACING Shock Spring - 64/66 mm OD - 60 n/mm - Red 1312-0993

    MOOSE RACING

    $111.95
    If you're tuning your suspension for consistent handling across varied track conditions, spring rate directly impacts your ability to dial in responsiveness without sacrificing stability. This MOOSE RACING shock spring delivers the precision engineering...
    13120993
    SKU:
    13120993
    Availability:
    Ships Same Business Day
    Weight:
    4.15 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 45 n/mm - Red 1312-0996

    MOOSE RACING Shock Spring - 64/66 mm OD - 45 n/mm - Red 1312-0996

    MOOSE RACING

    $111.95
    Shock spring performance directly impacts your suspension's ability to absorb impacts, maintain consistent ride height, and deliver predictable handling under load. The MOOSE RACING 64/66 mm shock spring offers a moderate 45 n/mm spring rate engineered...
    13120996
    SKU:
    13120996
    Availability:
    Ships Same Business Day
    Weight:
    3.90 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 47.5 n/mm - Red 1312-0997

    MOOSE RACING Shock Spring - 64/66 mm OD - 47.5 n/mm - Red 1312-0997

    MOOSE RACING

    $111.95
    Moose Racing shock springs deliver consistent, predictable suspension performance through precision engineering and premium materials—critical for maintaining vehicle control under aggressive driving conditions. Whether you're dialing in a race setup or...
    13120997
    SKU:
    13120997
    Availability:
    Ships Same Business Day
    Weight:
    3.80 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 50 n/mm - Red 1312-0998

    MOOSE RACING Shock Spring - 64/66 mm OD - 50 n/mm - Red 1312-0998

    MOOSE RACING

    $111.95
    Precision suspension tuning starts with a reliable shock spring that delivers consistent performance lap after lap. The MOOSE RACING 50 n/mm spring is engineered to exacting tolerances using premium chrome silicone wire, ensuring your suspension responds...
    13120998
    SKU:
    13120998
    Availability:
    Ships Same Business Day
    Weight:
    4.30 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 57.5 n/mm - Red 1312-1001

    MOOSE RACING Shock Spring - 64/66 mm OD - 57.5 n/mm - Red 1312-1001

    MOOSE RACING

    $111.95
    A quality shock spring is fundamental to suspension tuning—it directly affects how your chassis handles load transfer, body roll, and ride frequency. The MOOSE RACING 64/66 mm shock spring delivers consistent spring rate accuracy and longevity through...
    13121001
    SKU:
    13121001
    Availability:
    Ships Same Business Day
    Weight:
    4.40 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 65 n/mm - Red 1312-1004

    MOOSE RACING Shock Spring - 64/66 mm OD - 65 n/mm - Red 1312-1004

    MOOSE RACING

    $111.95
    A properly matched shock spring is fundamental to suspension tuning—it directly affects your vehicle's handling balance, ride height, and load transfer characteristics. The MOOSE RACING 65 n/mm spring delivers consistent performance across heat cycles...
    13121004
    SKU:
    13121004
    Availability:
    Ships Same Business Day
    Weight:
    4.40 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 45 n/mm - Blue 1312-1005

    MOOSE RACING Shock Spring - 64/66 mm OD - 45 n/mm - Blue 1312-1005

    MOOSE RACING

    $111.95
    Precision shock springs are foundational to consistent suspension performance, whether you're fine-tuning lap times or dialing in your setup for varying track conditions. The MOOSE RACING 45 n/mm spring delivers repeatable rate accuracy and durability...
    13121005
    SKU:
    13121005
    Availability:
    Ships Same Business Day
    Weight:
    4.25 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 54 n/mm - Blue 1312-1008

    MOOSE RACING Shock Spring - 64/66 mm OD - 54 n/mm - Blue 1312-1008

    MOOSE RACING

    $111.95
    A precision shock spring is the foundation of responsive, predictable suspension performance—whether you're chasing lap times or dialing in your setup. The MOOSE RACING 54 n/mm spring delivers consistent rate accuracy and durability through advanced...
    13121008
    SKU:
    13121008
    Availability:
    Ships Same Business Day
    Weight:
    4.40 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 57 n/mm - Blue 1312-1009

    MOOSE RACING Shock Spring - 64/66 mm OD - 57 n/mm - Blue 1312-1009

    MOOSE RACING

    $111.95
    Consistent spring rates are non-negotiable in high-performance suspension tuning, and this MOOSE Racing shock spring delivers ±2.5% accuracy across every unit you purchase. Whether you're dialing in a race-ready setup or replacing a worn component, you...
    13121009
    SKU:
    13121009
    Availability:
    Ships Same Business Day
    Weight:
    4.80 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 60 n/mm - Blue 1312-1010

    MOOSE RACING Shock Spring - 64/66 mm OD - 60 n/mm - Blue 1312-1010

    MOOSE RACING

    $111.95
    A precision shock spring is only as good as its consistency and durability under load. The MOOSE RACING 64/66 mm OD shock spring delivers reliable, predictable suspension performance with tight spring rate tolerance, ensuring your setup remains stable...
    13121010
    SKU:
    13121010
    Availability:
    Ships Same Business Day
    Weight:
    5.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 63 n/mm - Blue 1312-1011

    MOOSE RACING Shock Spring - 64/66 mm OD - 63 n/mm - Blue 1312-1011

    MOOSE RACING

    $111.95
    A shock spring's rate directly impacts your suspension's ability to handle cornering loads, absorb impacts, and maintain consistent ride height under dynamic conditions. This MOOSE Racing unit delivers precise 63 n/mm spring rate with the consistency you...
    13121011
    SKU:
    13121011
    Availability:
    Ships Same Business Day
    Weight:
    5.35 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 64/66 mm OD - 65 n/mm- Blue 1312-1012

    MOOSE RACING Shock Spring - 64/66 mm OD - 65 n/mm- Blue 1312-1012

    MOOSE RACING

    $111.95
    Moose Racing shock springs are engineered for racers and serious enthusiasts who demand precision damping performance without compromise. Built from premium chrome silicone wire and manufactured to strict DIN and ISO standards, these springs deliver...
    13121012
    SKU:
    13121012
    Availability:
    Ships Same Business Day
    Weight:
    5.65 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 59 mm OD - 54/57/60 n/mm - White 1312-1013

    MOOSE RACING Shock Spring - 59 mm OD - 54/57/60 n/mm - White 1312-1013

    MOOSE RACING

    $111.95
    Precision shock tuning demands springs engineered to exact specifications, and MOOSE Racing delivers exactly that with this 59mm OD unit. Whether you're dialing in suspension geometry for track days or fine-tuning your race setup, having access to...
    13121013
    SKU:
    13121013
    Availability:
    Ships Same Business Day
    Weight:
    3.65 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    Subtotal:
  • MOOSE RACING Shock Spring - 59 mm OD - 57/60/63 n/mm - White 1312-1014

    MOOSE RACING Shock Spring - 59 mm OD - 57/60/63 n/mm - White 1312-1014

    MOOSE RACING

    $111.95
    Moose Racing shock springs deliver the consistent spring rates and durability demanded by serious racers and high-performance builds. Whether you're fine-tuning suspension geometry for track days or building a competition-ready machine, these springs...
    13121014
    SKU:
    13121014
    Availability:
    Ships Same Business Day
    Weight:
    3.55 LBS
    $111.95
    Qty in Cart: 0
    Quantity:
    Price:
    $111.95
    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

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER