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
- Moose Offroad Lowering Pull Rod 0419-0022 – Adjustable aluminum rod for lowering rear suspension; fits Honda CRF and Yamaha YZ for improved ergonomics.
- Moose Racing Swingarm Bearing Kit 28-1231 – Complete sealed bearing kit for swingarms; smooth rotation on Kawasaki KX models.
- Factory Connection Shock Spring ANB-0034 – Progressive rear shock spring for Factory Connection shocks; tunes damping for KTM SX.
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
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SDI Bladder Cap - Orange SDESBCAKT11-ORG
SDI
$143.95If you're running a stock OEM floating piston accumulator, you're dealing with unnecessary friction and inconsistent damping that degrades shock performance over time. The SDI Bladder Cap converts your shock to a conventional bladder system—the same...13140710- SKU:
- 13140710
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$143.95Qty in Cart: 0Quantity:Price:$143.95Subtotal: -
SDI Bladder Cap - Blue SDESBCAKT17-BLU
SDI
$143.95If you're running a stock floating piston accumulator, you're dealing with unnecessary friction and inconsistent damping that degrades shock performance over time. The SDI Bladder Cap converts your system to a proven conventional bladder design,...13140715- SKU:
- 13140715
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
$143.95 -
SDI Bladder Cap - Black SDESBCH09B
SDI
$59.95If you're running a performance suspension setup, shock fluid temperature directly impacts damping consistency and longevity. The SDI Bladder Cap increases your shock's internal volume, delivering a more linear pressure curve while actively managing heat...13140717- SKU:
- 13140717
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
$59.95 -
SDI Bladder Cap - Black SDESBCH17B
SDI
$59.95If you're running a performance shock setup, your bladder cap is doing critical work—and an undersized or worn unit will compromise both feel and longevity. The SDI Bladder Cap increases usable volume in your shock, delivering a more linear damping curve...13140721- SKU:
- 13140721
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$59.95 -
SDI Bladder Cap - Red SDESBCH17R
SDI
$59.95If you're running a shock-dependent suspension setup, shock volume directly impacts your damping characteristics and thermal stability under sustained racing conditions. The SDI Bladder Cap increases effective shock volume to deliver a more linear...13140722- SKU:
- 13140722
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$59.95 -
On Sale
SDI Bladder Cap - Black SDESBCH250B
SDI
MSRP: $59.95Now: $38.00Was: $59.95Bladder caps are essential upgrades for any serious shock setup, directly impacting how your suspension responds under load. This precision-machined cap increases effective shock volume, delivering a more linear feel throughout your suspension travel...13140723- SKU:
- 13140723
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
MSRP: $59.95Now: $38.00Was: $59.95 -
On Sale
SDI Bladder Cap - Gray SDESBCH250G
SDI
MSRP: $59.95Now: $38.00Was: $59.95If you're running a performance shock setup, volume matters—and the SDI Bladder Cap directly impacts how your suspension feels on track. By increasing internal volume, this cap delivers a more linear damping curve throughout the stroke, reducing the...13140724- SKU:
- 13140724
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
MSRP: $59.95Now: $38.00Was: $59.95 -
SDI Bladder Cap - Black SDESBCK19-S
SDI
$62.95Shock performance depends on maintaining consistent damping characteristics and operating temperature—two areas where reservoir volume and thermal management make measurable differences. The SDI Bladder Cap increases your shock's internal volume for a...13140726- SKU:
- 13140726
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$62.95 -
SDI Bladder Cap - Blue SDESBCK19-BLU
SDI
$59.95If you're running coilovers or high-performance shocks, shock volume directly impacts your suspension's ability to handle sustained track sessions and aggressive driving. The SDI Bladder Cap increases that volume while maintaining precise pressure...13140727- SKU:
- 13140727
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal: -
SDI Bladder Cap - Black SDESBCY18-B
SDI
$61.95If you're running a performance suspension setup, shock bladder volume directly impacts your damper's ability to maintain consistent oil temperature and deliver predictable ride quality under sustained racing or aggressive driving. The SDI Bladder Cap...13140730- SKU:
- 13140730
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$61.95 -
SDI Bladder Cap - Blue SDESBCY18-BLU
SDI
$62.95Bladder caps are critical for maximizing shock performance, especially in high-demand racing and off-road applications. This SDI unit increases shock volume while delivering a more linear, predictable feel through the suspension stroke. The anodized blue...13140731- SKU:
- 13140731
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$62.95 -
SDI Adjuster Spring - High Speed - Long SDEHSAL
SDI
$33.95Square-edge bumps and abrupt track transitions can introduce unwanted suspension spike, throwing off your setup balance and compromising driver feedback. The SDI Adjuster Spring – High Speed – Long is engineered to smooth initial control response,...13140732- SKU:
- 13140732
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$33.95Qty in Cart: 0Quantity:Price:$33.95Subtotal: -
SDI Adjuster Spring - High Speed - Short SDEHSAS
SDI
$33.95Precision suspension tuning demands components that respond instantly to track conditions without introducing harshness into your chassis. The SDI Adjuster Spring – High Speed – Short delivers predictable initial control that keeps your setup dialed in...13140733- SKU:
- 13140733
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$33.95 -
SDI Shock Check Valve - M12 x 1.25 SDESCV125
SDI
$61.95Precise damping control separates a competitive setup from a mediocre one. The SDI Shock Check Valve adds low-speed compression control without sacrificing high-speed responsiveness, giving you the fine-tuning capability that dedicated racers demand. The...13140734- SKU:
- 13140734
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$61.95Qty in Cart: 0Quantity:Price:$61.95Subtotal: -
SDI Shock Check Valve - M12 x 1.50 SDESCV150
SDI
$61.95Fine-tuning your suspension's damping characteristics requires precision control at low speeds—this is where a quality check valve becomes essential. The SDI Shock Check Valve adds a secondary flow path with adjustable pilot pressure, giving you the...13140735- SKU:
- 13140735
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
$61.95 -
SDI Shock Lowering Stop Washer - Rear - Lowers 1 mm SDERCW-1
SDI
$14.95A 1 mm reduction in ride height can dramatically improve your bike's handling characteristics, especially through corners where geometry plays a critical role in grip and stability. This precision-engineered washer delivers that adjustment without...13140736- SKU:
- 13140736
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
$14.95 -
SDI Shock Lowering Stop Washer - Rear - Lowers 2 mm SDERCW-2
SDI
$14.95Fine-tuning your vehicle's ride height is essential for optimizing handling geometry, clearance, and overall performance. This SDI shock lowering stop washer delivers precise 2mm rear suspension adjustment without requiring extensive fabrication, making...13140737- SKU:
- 13140737
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$14.95Qty in Cart: 0Quantity:Price:$14.95Subtotal: -
SDI Shock Lowering Stop Washer - Rear - Lowers 3 mm SDERCW-3
SDI
$14.95Lowering your bike's ride height doesn't require permanent modifications or costly suspension work. The SDI Shock Lowering Stop Washer delivers a simple 3 mm drop through precision-machined chromoly construction, giving you the geometry adjustment you...13140738- SKU:
- 13140738
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$14.95 -
SDI Shock Lowering Stop Washer - Rear - Lowers 1 mm SDERLWK16-1
SDI
$24.95If you're looking to fine-tune your bike's geometry for better cornering performance or a more aggressive stance, a 1 mm rear ride-height reduction makes a measurable difference in handling dynamics. This precision-machined washer gives you exact control...13140739- SKU:
- 13140739
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$24.95 -
SDI Shock Lowering Stop Washer - Rear - Lowers 2 mm SDERLWK16-2
SDI
$24.95If you're looking to dial in your bike's geometry without committing to expensive suspension overhauls, lowering stop washers are the simplest path forward. This 2mm rear lowering solution adjusts your ride height precisely while maintaining shock...13140740- SKU:
- 13140740
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$24.95
