Dirt Bike Suspension
Dirt Bike Suspension Parts at JJ Motorsports
Fine-tune your ride with advanced suspension components from JJ Motorsports. From rear suspension upgrades to precision-manufactured forks, these products ensure improved handling and shock absorption. Find complementary off-road dirt bike parts to optimize every ride on the track or trail.
Shop trusted brands like Progressive Suspension for adjustable shocks and Fox for high-performance forks. Explore related categories such as Dirt Bike Braking for stopping power or Dirt Bike Tires and Wheels for complete setups.
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
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SDI Fork Preload Spacer - 5 mm SDEFSP25-05
SDI
$6.37Twin chamber forks demand precise preload adjustment to dial in the perfect ride height and spring rate for your specific setup. The SDI Fork Preload Spacer eliminates guesswork and eliminates the need for expensive machine shop work—simply stack spacers...04500604- SKU:
- 04500604
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$6.37 -
SDI Fork Preload Spacer - 10 mm SDEFSP25-10
SDI
$7.44Adjusting fork preload shouldn't require special tools or disassembly of your suspension. The SDI Fork Preload Spacer gives you precise, repeatable preload adjustments on twin-chamber forks with a simple bolt-on installation. Fine-tune your suspension's...04500605- SKU:
- 04500605
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$7.44 -
SDI Spring Perch Set - CRF SDETCV23SET
SDI
$155.10If you're running a CRF and hitting the limits of stock suspension geometry, this spring perch set transforms how your bike handles deep compressions and aggressive riding. By allowing you to dial in ride height and spring preload independently, you'll...04500607- SKU:
- 04500607
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$155.10 -
SDI Spring Perch Set - YZ250F/450F SDETCV24-MX-SET
SDI
$104.95If your YZ250F or YZ450F is bottoming out on bigger hits or washing out through rough terrain, a properly tuned spring perch directly impacts how your suspension responds under load. This set lets you dial in the perfect balance between initial support...04500608- SKU:
- 04500608
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$104.95Qty in Cart: 0Quantity:Price:$104.95Subtotal: -
SDI Spring Perch Set SDETCV24-SET
SDI
$112.30Suspension geometry directly impacts how your bike handles under load and through the stroke. The SDI Spring Perch Set SDETCV24-SET gives you the tuning capability to dial in optimal bottoming resistance and extract deeper performance from your...04500609- SKU:
- 04500609
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$112.30 -
SDI Spring Perch Set SDETCV25-SET
SDI
$118.72Fine-tuning suspension geometry is critical for maximizing both comfort and control across varied terrain, and the SDI Spring Perch Set SDETCV25-SET delivers the adjustability you need without expensive re-valving or complete shock replacement. By...04500610- SKU:
- 04500610
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$118.72 -
SDI Spring Perch Set - KTM/Husqvarna SDETCVWP
SDI
$112.30If you're running out of suspension travel on aggressive terrain or experiencing harsh bottoming on deep compressions, the SDI Spring Perch Set addresses these issues directly by optimizing your shock's geometry and stroke characteristics. This U.S.-made...04500611- SKU:
- 04500611
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$112.30 -
SDI Spring Perch Set - YZ250F/450F SDETCV18-MXSET
SDI
$118.72Suspension geometry directly impacts how your YZ handles across different terrains—and a quality spring perch set is essential for dialing in the performance you need. The SDI Spring Perch Set gives you the adjustability to tune your bike's bottoming...04500612- SKU:
- 04500612
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$118.72 -
SDI Spring Perch Set - YZ250F/450F SDETCVY18-SET
SDI
$118.72Suspension geometry directly impacts your bike's stability and comfort, especially during aggressive riding or rough terrain. The SDI Spring Perch Set lets you dial in your YZ250F/450F's suspension characteristics without replacing major components,...04500613- SKU:
- 04500613
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$118.72 -
SDI DU Piston Bushing Conversion Kit - 50 mm DRPBK-KTB50
SDI
$21.35Stock piston wear bands deteriorate rapidly under damping cycles, causing friction buildup and inconsistent suspension response within the first few hours of use. The SDI DU Piston Bushing Conversion Kit replaces this wear band with a DU composite...04500615- SKU:
- 04500615
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$21.35 -
SDI DU Piston Bushing Conversion Kit - 40 mm DRPBK-SH40
SDI
$21.35Stock piston rings are a compromise between cost and performance—they wear rapidly during initial operation, causing your damping characteristics to shift unpredictably within the first five hours. The SDI DU Piston Bushing Conversion Kit replaces that...04500616- SKU:
- 04500616
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$21.35 -
SDI DU Piston Bushing Conversion Kit - 50 mm DRPBK-SH50
SDI
$21.35Stock piston rings shed their wear band rapidly, often within the first five hours of operation, causing unpredictable low-speed damping and performance loss. The SDI DU Piston Bushing Conversion Kit eliminates this inconsistency by replacing that wear...04500617- SKU:
- 04500617
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$21.35Qty in Cart: 0Quantity:Price:$21.35Subtotal: -
SDI DU Piston Bushing Conversion Kit - 36 mm DRPBK-WP36
SDI
$21.35Stock piston wear bands degrade rapidly, causing inconsistent damping within the first five hours of operation and compromising your suspension's performance throughout the oil's service life. The SDI DU Piston Bushing Conversion Kit replaces this wear...04500618- SKU:
- 04500618
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$21.35 -
SDI DU Piston Bushing Conversion Kit - 46 mm DRPBK-WP46XPL
SDI
$21.35Stock piston rings wear dramatically within the first five hours of operation, degrading low-speed damping and compromising suspension consistency when you need it most. This DU Piston Bushing Conversion Kit eliminates that performance loss by replacing...04500619- SKU:
- 04500619
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$21.35Qty in Cart: 0Quantity:Price:$21.35Subtotal: -
SDI DU Piston Bushing Conversion Kit - 50 mm DRPBK-WP50
SDI
$21.35Stock wear bands degrade rapidly under damping loads, causing inconsistent performance and accelerated component wear within the first five hours of operation. The SDI DU Piston Bushing Conversion Kit replaces that compromised design with a low-friction...04500620- SKU:
- 04500620
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$21.35 -
SDI DU Piston Bushing Conversion Kit - 50 mm DRPBK-WP5016
SDI
$21.35Stock piston wear bands degrade rapidly, causing inconsistent damping and unpredictable handling within the first five hours of operation. The SDI DU Piston Bushing Conversion Kit eliminates this performance loss by replacing the wear band with a...04500621- SKU:
- 04500621
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$21.35 -
SDI DU Piston Bushing Conversion Kit - 50 mm DRPBK-WP50PDS
SDI
$21.35Stock piston wear bands typically degrade within the first five hours of use, compromising damping consistency and forcing premature rebuilds. The SDI DU Piston Bushing Conversion Kit replaces this wear point with a durable alternative that maintains...04500622- SKU:
- 04500622
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$21.35 -
SDI DU Piston Bushing Conversion Kit - 40 mm DRPBK-KYB40
SDI
$21.35Stock piston rings wear rapidly during initial operation, compromising your damper's low-speed performance within just five hours of use. The SDI DU Piston Bushing Conversion Kit replaces that stock wear band with a precision-engineered bushing that...04500623- SKU:
- 04500623
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$21.35 -
On Sale
SDI Fork Service Kit - 43 mm KFSK43
SDI
MSRP: $79.95Now: $51.00Was: $79.95Proper fork maintenance directly impacts suspension responsiveness, damping consistency, and overall ride quality—neglecting service leads to performance degradation and premature wear. The SDI Fork Service Kit for 43mm forks consolidates every component...04500625- SKU:
- 04500625
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
MSRP: $79.95Now: $51.00Was: $79.95Qty in Cart: 0Quantity:Price:MSRP: $79.95Now: $51.00Was: $79.95Subtotal: -
SDI Fork Service Kit - 46 mm KFSK46
SDI
$85.55Proper fork maintenance is critical to preserving your suspension's responsiveness, damping characteristics, and structural integrity—especially if you're pushing performance limits on track or trail. This comprehensive service kit eliminates the...04500626- SKU:
- 04500626
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$85.55
