SDI
SDI Steering Knuckles, Hubs, and Suspension Parts at JJ Motorsports
SDI is a specialized brand in the powersports industry, focusing on heavy-duty steering and suspension components for UTVs such as Polaris RZR, Can-Am Maverick, Talon, and Commander. Emphasizing superior strength, lightweight designs, and race-proven performance, SDI products replace weak stock parts to improve safety, handling, and durability in off-road and racing environments.
At JJ Motorsports, we offer a wide range of SDI products, including the race-proven Steering Knuckle - Race Edition for reduced bump steer, the lightweight Heavy Duty Front Hub for Polaris RZR to minimize rotating mass, the adjustable Tie Rods for Talon R with flats for easy tuning, the modular Radius Rods - 64" for enhanced strength, the flexible Accessory Mount Clamp that rotates on impact, and the rigid Motor Mount for Polaris to reduce flex and wear. Whether you're prepping for races or rugged trails, SDI delivers reliable upgrades compatible with major UTV brands. Explore our selection to find the perfect additions for your vehicle.
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
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SDI Steering Knuckle - Race Edition UDCSTRK170
SDI
$136.95Precision steering geometry is non-negotiable at the track. The SDI Steering Knuckle - Race Edition eliminates the compliance and deflection inherent in stock hardware, giving you the responsive,...02130857- SKU:
- 02130857
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$136.95 -
SDI Steering Knuckle - Easy Steer Edition UDCSTRK170E
SDI
$136.95Bump steer and imprecise steering response can compromise both lap times and safety on track. The SDI Steering Knuckle – Easy Steer Edition delivers a lighter, geometrically optimized design that...02130858- SKU:
- 02130858
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$136.95 -
SDI Hub - Heavy Duty - Front - Polaris RZR UDCHR170F
SDI
$461.95Stock hubs are a common failure point under aggressive driving and high-speed operation, especially in performance applications. The SDI Heavy Duty Front Hub replaces that weak link with a reinforced...02130859- SKU:
- 02130859
- Availability:
- Ships Same Business Day
- Weight:
- 3.66 LBS
$461.95 -
SDI Hub - Heavy Duty - Rear - Polaris RZR UDCHR170R
SDI
$299.95The stock rear hub on your Polaris RZR can become a limiting factor when you're pushing performance—especially under high-speed cornering, acceleration, or aggressive terrain. The SDI Heavy Duty Rear...02130860- SKU:
- 02130860
- Availability:
- Ships Same Business Day
- Weight:
- 3.46 LBS
$299.95 -
SDI Tie Rods - Talon R UDCHTTR-R
SDI
$129.95Stock tie rods flex under hard cornering and braking, introducing slop into your steering response when you need precision most. The SDI Tie Rods for Talon R deliver race-proven rigidity and...04301156- SKU:
- 04301156
- Availability:
- Ships Same Business Day
- Weight:
- 2.06 LBS
$129.95 -
On Sale
SDI Tie Rods - Talon X UDCHTTR-X
SDI
MSRP: $129.95Now: $83.00Was: $129.95Stock tie rods are a weak point in any serious build—they flex under load, compromise steering precision, and can fail catastrophically at race speeds. The SDI Talon X tie rod kit replaces that...04301157- SKU:
- 04301157
- Availability:
- Ships Same Business Day
- Weight:
- 1.66 LBS
MSRP: $129.95Now: $83.00Was: $129.95Qty in Cart: 0Quantity:Price:MSRP: $129.95Now: $83.00Was: $129.95Subtotal: -
SDI Tie Rods - Commander UDCPZTR-COM
SDI
$272.95Stock tie rods are often the weak link in a performance steering system, introducing play and unpredictability under hard cornering or high-speed transitions. The SDI Commander Tie Rod Kit replaces...04301158- SKU:
- 04301158
- Availability:
- Ships Same Business Day
- Weight:
- 4.53 LBS
$272.95 -
SDI Tie Rods - 64" UDCPZTR-MX3
SDI
$129.95Stock tie rods flex under cornering loads and high-speed directional changes, introducing slop that degrades handling precision and tire wear consistency. The SDI UDCPZTR-MX3 replaces OEM hardware...04301160- SKU:
- 04301160
- Availability:
- Ships Same Business Day
- Weight:
- 2.71 LBS
$129.95Qty in Cart: 0Quantity:Price:$129.95Subtotal: -
SDI Tie Rods - 72" UDCPZTR-MX3E3
SDI
$129.95Stock tie rods are a weak link in any performance steering system—they flex under load, introduce play into your front end geometry, and limit your ability to dial in precise alignment adjustments...04301161- SKU:
- 04301161
- Availability:
- Ships Same Business Day
- Weight:
- 3.89 LBS
$129.95 -
SDI Tie Rods - Turbo S UDCPZTR-TS
SDI
$304.95Stock tie rods lack the precision and durability demanded by serious racers and high-performance builds. The SDI Tie Rods - Turbo S deliver race-proven strength with adjustability that lets you dial...04301162- SKU:
- 04301162
- Availability:
- Ships Same Business Day
- Weight:
- 7.40 LBS
$304.95 -
SDI Tie Rods - RZR UDCPZTR1000-14
SDI
$249.95Stock tie rods on your RZR compromise steering precision and fail under the demands of aggressive off-road riding. These SDI tie rods replace OEM components with heavy-duty construction that handles...04301163- SKU:
- 04301163
- Availability:
- Ships Same Business Day
- Weight:
- 5.40 LBS
$249.95 -
SDI Tie Rods - RZR UDCPZTR1000-15
SDI
$262.95Stock tie rods flex and wear under the extreme loads of high-performance RZR driving, compromising your steering precision and alignment stability when you need it most. The SDI Tie Rods replace weak...04301164- SKU:
- 04301164
- Availability:
- Ships Same Business Day
- Weight:
- 5.09 LBS
$262.95Qty in Cart: 0Quantity:Price:$262.95Subtotal: -
SDI Tie Rods - +4" UDCPZTR100015E4
SDI
$259.95OEM tie rods flex and wear under aggressive driving, leading to unpredictable steering response and dangerous play in your suspension geometry. These SDI +4" tie rods replace that compliance with...04301166- SKU:
- 04301166
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
$259.95 -
SDI Tie Rods - RZR UDCPZTR1000-17
SDI
$262.95Stock tie rods are a common failure point under aggressive driving conditions, leading to unpredictable steering and potential safety issues. The SDI Tie Rods for RZR deliver race-proven durability...04301167- SKU:
- 04301167
- Availability:
- Ships Same Business Day
- Weight:
- 5.91 LBS
$262.95 -
On Sale
SDI Tie Rods - +3" UDCPZTR100017E3
SDI
MSRP: $259.95Now: $166.00Was: $259.95Stock tie rods flex under cornering loads and limit your steering precision—a liability in competitive racing or aggressive driving. SDI's +3" tie rods replace that weakness with heavy-duty...04301168- SKU:
- 04301168
- Availability:
- Ships Same Business Day
- Weight:
- 5.80 LBS
MSRP: $259.95Now: $166.00Was: $259.95Qty in Cart: 0Quantity:Price:MSRP: $259.95Now: $166.00Was: $259.95Subtotal: -
On Sale
SDI Tie Rods - 50" UDCPZTR800
SDI
MSRP: $249.95Now: $160.00Was: $249.95Stock tie rods introduce compliance and flex under cornering loads, robbing you of precision steering input when it matters most. The SDI 50" Tie Rod Kit replaces that uncertainty with heavy-duty,...04301170- SKU:
- 04301170
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
MSRP: $249.95Now: $160.00Was: $249.95Qty in Cart: 0Quantity:Price:MSRP: $249.95Now: $160.00Was: $249.95Subtotal: -
On Sale
SDI Tie Rods - 60" UDCPZTR800-60
SDI
MSRP: $249.95Now: $160.00Was: $249.95Stock tie rods flex and wear under racing loads, robbing you of steering precision and feedback when you need it most. SDI's heavy-duty tie rods deliver the rigidity and durability that separates...04301171- SKU:
- 04301171
- Availability:
- Ships Same Business Day
- Weight:
- 4.05 LBS
MSRP: $249.95Now: $160.00Was: $249.95Qty in Cart: 0Quantity:Price:MSRP: $249.95Now: $160.00Was: $249.95Subtotal: -
SDI Tie Rods - YXZ1000R UDCYXTR1000
SDI
$291.95Stock tie rods on the YXZ1000R are a weak link when you're pushing hard on the track or in technical terrain. SDI's heavy-duty tie rods deliver the strength and precision adjustability you need to...04301174- SKU:
- 04301174
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
$291.95 -
SDI Swaybar Endlink - Rear - Heavy Duty UDCCMSB-X3
SDI
$167.95Stock swaybar endlinks are often the first component to wear under aggressive driving, leading to vague handling feedback and increased body roll. The SDI Heavy Duty Rear Swaybar Endlink replaces...04500592- SKU:
- 04500592
- Availability:
- Ships Same Business Day
- Weight:
- 3.21 LBS
$167.95Qty in Cart: 0Quantity:Price:$167.95Subtotal: -
SDI Swaybar Endlink - Rear - Heavy Duty UDCPZSBL1000
SDI
$139.95Stock swaybar endlinks flex and wear under performance driving, compromising your suspension's precision and responsiveness. The SDI Heavy Duty Rear Swaybar Endlink eliminates that compliance with a...04500593- SKU:
- 04500593
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
$139.95 -
SDI Accessory Mount - Clamp UDAMS-C
SDI
$29.95Building a race-ready roll cage setup shouldn't lock you into a single configuration. The SDI Accessory Mount - Clamp UDAMS-C gives you true modularity, allowing you to mount seven different...05211919- SKU:
- 05211919
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$29.95 -
SDI Accessory Mount - Sleeve - 1.5" Tube UDAMS-S15
SDI
$5.95If you're building a roll cage setup that demands versatility without compromise, the SDI Accessory Mount Sleeve gives you the modular platform to mount multiple accessories at any angle—all at a...05211920- SKU:
- 05211920
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$5.95 -
SDI Accessory Mount - Sleeve - 1.75" Tube UDAMS-S175
SDI
$5.95If you're building a roll cage setup that demands flexibility without compromise, the SDI Accessory Mount Sleeve eliminates the guesswork of custom fabrication. This modular system lets you position...05211921- SKU:
- 05211921
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$5.95 -
SDI Accessory Mount - Hook UDAMS-HA
SDI
$19.95If you're building a custom roll cage setup, you need a mounting solution that adapts to your specific layout without compromise. The SDI Accessory Mount Hook eliminates the guesswork with twenty...05211922- SKU:
- 05211922
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$19.95 -
SDI Accessory Mount - Light Bar - Large - 0.402 mm Diameter UDAMS-LBL
SDI
$19.95When you're running hard on track or trail, your auxiliary lighting and accessories need to stay exactly where you put them—without compromise. The SDI Accessory Mount delivers modular flexibility...05211923- SKU:
- 05211923
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$19.95 -
On Sale
SDI Accessory Mount - Light Bar - Medium - 0.323 mm Diameter UDAMS-LBM
SDI
MSRP: $19.95Now: $13.00Was: $19.95If you're running auxiliary lighting on a roll cage setup, you need a mount that won't compromise your safety or your sightlines. The SDI Accessory Mount delivers precision positioning with seven...05211924- SKU:
- 05211924
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
MSRP: $19.95Now: $13.00Was: $19.95 -
On Sale
SDI Accessory Mount - Light Bar - Small - 0.256 mm Diameter UDAMS-LBS
SDI
MSRP: $19.95Now: $13.00Was: $19.95If you're running auxiliary lighting or other accessories on your roll cage, mounting reliability matters. The SDI Accessory Mount gives you the flexibility to position lights exactly where you need...05211925- SKU:
- 05211925
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
MSRP: $19.95Now: $13.00Was: $19.95Qty in Cart: 0Quantity:Price:MSRP: $19.95Now: $13.00Was: $19.95Subtotal: -
SDI Accessory Mount - License Plate UDAMS-LP
SDI
$48.95If you're running a roll cage setup, you need a license plate mount that won't compromise your build's integrity or flexibility. The SDI Accessory Mount delivers true modularity—a single mounting...05211926- SKU:
- 05211926
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$48.95Qty in Cart: 0Quantity:Price:$48.95Subtotal: -
SDI Accessory Mount - Registration Sticker Plate UDAMS-SP
SDI
$34.95If you're running a race car with a roll cage, you need a registration sticker plate that won't compromise your setup or create installation headaches. The SDI Accessory Mount gives you a modular,...05211927- SKU:
- 05211927
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$34.95 -
On Sale
SDI Accessory Mount - Whip UDAMS-W
SDI
MSRP: $19.95Now: $13.00Was: $19.95If you're running safety equipment or accessories on a roll cage, you need a mount system that adapts to your setup without permanent modifications. The SDI Accessory Mount - Whip delivers modular...05211928- SKU:
- 05211928
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
MSRP: $19.95Now: $13.00Was: $19.95 -
SDI Motor Mount - Polaris UDMPRZRMP
SDI
$94.95Misalignment between your motor and transmission is a silent killer—it accelerates belt wear, introduces vibration, and compounds stress on connected components. The SDI Motor Mount for Polaris...09330142- SKU:
- 09330142
- Availability:
- Ships Same Business Day
- Weight:
- 1.11 LBS
$94.95Qty in Cart: 0Quantity:Price:$94.95Subtotal: -
SDI Transmission Mount - RZR 170 UDCTM170
SDI
$110.95The stock transmission mount on your RZR 170 is a known weak point that can fail under aggressive driving or high-torque conditions, leaving you stranded. This SDI replacement reinforces the critical...11050260- SKU:
- 11050260
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
$110.95Qty in Cart: 0Quantity:Price:$110.95Subtotal: -
SDI Radius Rod - 64" UDCCMRR-X3
SDI
$669.95Stock radius rods flex under aggressive driving conditions, compromising suspension geometry and handling precision. The SDI 64" Radius Rod replaces weak OEM components with heavy-duty construction...13020695- SKU:
- 13020695
- Availability:
- Ships Same Business Day
- Weight:
- 19.40 LBS
$669.95Qty in Cart: 0Quantity:Price:$669.95Subtotal: -
SDI Radius Rod - 72" UDCCRR-X3R5
SDI
$704.95Stock radius rods flex under load, compromising steering precision and alignment stability during aggressive driving. The SDI Radius Rod replaces that compliance with rigid, heavy-duty construction...13020697- SKU:
- 13020697
- Availability:
- Ships Same Business Day
- Weight:
- 23.00 LBS
$704.95 -
SDI Radius Rod - RZR XP Turbo/XP 1000 UDCPZRR-T17
SDI
$472.95Stock radius rods on your RZR XP Turbo or XP 1000 are a weak point under aggressive driving, especially in rough terrain where suspension articulation demands maximum durability. The SDI Radius Rod...13020701- SKU:
- 13020701
- Availability:
- Ships Same Business Day
- Weight:
- 12.53 LBS
$472.95 -
SDI Radius Rod - RZR Turbo S UDCPZRR-TS
SDI
$499.95Stock radius rods are a common failure point under aggressive driving conditions, compromising suspension geometry and handling precision. The SDI Radius Rod for RZR Turbo S replaces worn or damaged...13020702- SKU:
- 13020702
- Availability:
- Ships Same Business Day
- Weight:
- 16.29 LBS
$499.95 -
SDI Radius Rod - RZR 1000 UDCPZRR1000
SDI
$472.95Stock radius rods are a common failure point under aggressive driving, especially on lifted or modified RZR 1000s where suspension geometry demands higher precision. The SDI Radius Rod replaces weak...13020703- SKU:
- 13020703
- Availability:
- Ships Same Business Day
- Weight:
- 11.98 LBS
$472.95 -
SDI Radius Rod - RZT XP 900 UDCPSRR900
SDI
$472.95Stock radius rods on your RZT XP 900 are a weak link under aggressive driving conditions—flex, bind, and premature wear will compromise your suspension geometry and handling. The SDI Radius Rod...13020704- SKU:
- 13020704
- Availability:
- Ships Same Business Day
- Weight:
- 11.49 LBS
$472.95Qty in Cart: 0Quantity:Price:$472.95Subtotal: -
SDI Shock Spring - RZR XP1K Two Seater UDCSKP-1K2
SDI
$899.95Stock RZR XP1K springs compromise handling and comfort, forcing you to choose between plush ride quality and controlled body movement. The SDI Shock Spring delivers a true dual-rate setup that...13120908- SKU:
- 13120908
- Availability:
- Ships Same Business Day
- Weight:
- 33.65 LBS
$899.95 -
SDI Shock Spring - RZR XP1K Two Seater UDCSKP-1K217
SDI
$899.95If you're running a Walker Evans-equipped RZR XP1K Two Seater, suspension tuning separates a comfortable ride from a competent one. The SDI Shock Spring kit delivers true dual-rate geometry that...13120909- SKU:
- 13120909
- Availability:
- Ships Same Business Day
- Weight:
- 34.70 LBS
$899.95
