Dirt Bike Front Suspension
Dirt Bike Front Suspension Parts: Fork Springs, Guards & Launch Devices for Yamaha at JJ Motorsports
Enhance your dirt bike's front suspension with premium parts from JJ Motorsports, designed for smoother damping and protection in motocross, enduro, and trail riding. These components improve handling and reduce wear for reliable performance.
Shop Works Connection, Moose Racing, and Polisport front suspension parts for durable, easy-to-install upgrades. Explore related categories such as dirt bike suspension for shocks and bushings, or dirt bike for full builds to complete your setup and achieve balanced, responsive handling across all conditions, from high-speed jumps to technical singletrack.
Top Dirt Bike Front Suspension Parts
- Works Connection Pro Launch Start Device Yamaha 12-416 – Adjustable launch device for Yamaha YZ; reduces fork compression for better starts.
- Moose Racing Fork Springs 31 mm 2.4 N/mm 0405-1120 – Progressive fork springs for 31mm tubes; improves damping on Kawasaki KX models.
- Polisport Fork Guard Cover Black 8398100002 – Black plastic fork guards; protects stanchions from rocks on Honda CRF.
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 Replacement Boot Kit - Front Left/Right 51-3003
MOOSE RACING
$31.26Replacement boot kit04300751- SKU:
- 04300751
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MATERIAL:
- POLYURETHANE
- TYPE:
- STEERING RACK
- DUTY:
- HEAVY DUTY
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- BOOT KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- UTV
- UNITS:
- KIT
$31.26 -
LONE STAR RACING/TECH 5 IND. Replacement Ball Joint for LSR A-Arms - Honda Taper 21P00500H
LONE STAR RACING/TECH 5 IND.
$34.65Stainless steel ball joint, Replacement part for LSR A-Arms04300297- SKU:
- 04300297
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- RIDING STYLE:
- UTV
- TYPE:
- A-ARM
- PRODUCT NAME:
- BALL JOINT KIT
- COLOR/FINISH:
- BLACK
- STYLE:
- FOR HONDA TAPER
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$34.65Qty in Cart: 0Quantity:Price:$34.65Subtotal: -
LONE STAR RACING/TECH 5 IND. Replacement Ball Joint for LSR A-Arms - Yamaha Taper 21P00500Y
LONE STAR RACING/TECH 5 IND.
$34.65Stainless steel ball joint, Replacement part for LSR A-Arms04300298- SKU:
- 04300298
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- STYLE:
- FOR YAMAHA TAPER
- TYPE:
- A-ARM
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- PRODUCT NAME:
- BALL JOINT KIT
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
$34.65 -
LONE STAR RACING/TECH 5 IND. Replacement Heim Joint for all LSR A-Arms 21P00501
LONE STAR RACING/TECH 5 IND.
$19.95Stainless steel ball joint, Replacement part for LSR A-Arms04300299- SKU:
- 04300299
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- STYLE:
- FOR LSR
- TYPE:
- A-ARM
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- HEIM JOINT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$19.95 -
LONE STAR RACING/TECH 5 IND. Sport A-Arms - Extends 2" - Forward 1" 17-201807
LONE STAR RACING/TECH 5 IND.
$787.50Substantially improve stability and handling, 4130 chromoly steel construction for increased strength at a light weight, Adjustable camber and caster, Delrin pivot bushings, Include stainless steel tie-rods and pre-greased, sealed ball joints, Compatible...04300574- SKU:
- 04300574
- Availability:
- Ships Same Business Day
- Weight:
- 19.90 LBS
- EXTENSION IMPERIAL:
- EXTENDS 2.00'
- MODEL:
- SPORT
- MOUNTING POSITION:
- RIGHT
- PRODUCT NAME:
- COMPLETE A-ARM SET
- RIDING STYLE:
- ATV
- TYPE:
- ADJUSTABLE CAMBER AND CASTER
- UNITS:
- PAIR
- COLOR/FINISH:
- BLACK
- MOUNTING POSITION:
- LEFT
- OFFSET IMPERIAL:
- +1.00'
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- GLOSS
$787.50Qty in Cart: 0Quantity:Price:$787.50Subtotal: -
LONE STAR RACING/TECH 5 IND. Sport A-Arms - Extends 2" - Forward 1" 17-411807
LONE STAR RACING/TECH 5 IND.
$787.50Substantially improve stability and handling, 4130 chromoly steel construction for increased strength at a light weight, Adjustable camber and caster, Delrin pivot bushings, Include stainless steel tie-rods and pre-greased, sealed ball joints, Compatible...04300580- SKU:
- 04300580
- Availability:
- Ships Same Business Day
- Weight:
- 20.10 LBS
- EXTENSION IMPERIAL:
- EXTENDS 2.00'
- PRODUCT NAME:
- COMPLETE A-ARM SET
- TYPE:
- ADJUSTABLE CAMBER AND CASTER
- UNITS:
- PAIR
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- SPORT
- MOUNTING POSITION:
- RIGHT
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GLOSS
- OFFSET IMPERIAL:
- +1.00'
- RIDING STYLE:
- ATV
- MOUNTING POSITION:
- LEFT
$787.50Qty in Cart: 0Quantity:Price:$787.50Subtotal: -
LONE STAR RACING/TECH 5 IND. Sport A-Arms - Extends 2" - Forward 1" 17-421807
LONE STAR RACING/TECH 5 IND.
$787.50Substantially improve stability and handling, 4130 chromoly steel construction for increased strength at a light weight, Adjustable camber and caster, Delrin pivot bushings, Include stainless steel tie-rods and pre-greased, sealed ball joints, Compatible...04300581- SKU:
- 04300581
- Availability:
- Ships Same Business Day
- Weight:
- 22.00 LBS
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- COMPLETE A-ARM SET
- TYPE:
- ADJUSTABLE CAMBER AND CASTER
- COLOR/FINISH:
- BLACK
- MOUNTING POSITION:
- LEFT
- OFFSET IMPERIAL:
- +1.00'
- UNITS:
- PAIR
- EXTENSION IMPERIAL:
- EXTENDS 2.00'
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- SPORT
- MOUNTING POSITION:
- RIGHT
- RIDING STYLE:
- ATV
$787.50Qty in Cart: 0Quantity:Price:$787.50Subtotal: -
LONE STAR RACING/TECH 5 IND. DC-4 Long Travel A-Arms - Extends 2" - Forward 1" - 18.25" Shock Length - YFZ450/Raptor 17-421507
LONE STAR RACING/TECH 5 IND.
$1,101.45Strong, yet lightweight, A-arms that noticeably improve stability and handling, Made of TIG-welded, 4130 chromoly tubing with gloss black finish, Adjustable camber and caster, Delrin pivot bushings, Include stainless steel tie-rods and pre-greased,...04300592- SKU:
- 04300592
- Availability:
- Ships Same Business Day
- Weight:
- 19.90 LBS
- MATERIAL:
- STAINLESS STEEL
- MOUNTING POSITION:
- LEFT
- OFFSET IMPERIAL:
- +1.00'
- MODEL:
- DC-4
- MOUNTING POSITION:
- RIGHT
- STYLE:
- COMPLETE
- UNITS:
- PAIR
- EXTENSION IMPERIAL:
- EXTENDS 2.00'
- PRODUCT NAME:
- A-ARM SET
- RIDING STYLE:
- ATV
- TYPE:
- FRONT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- UTV
$1,101.45 -
LONE STAR RACING/TECH 5 IND. Steering Stems without Handlebar Clamps - LSR Handlebar C/D 19-4210107
LONE STAR RACING/TECH 5 IND.
$302.40Steering stem is 4130 chromoly, far stronger and much lighter than most stock units, Handlebar clamps are not included so the rider can choose a clamp that suits his or her particular preference, All mounting hardware included04100150- SKU:
- 04100150
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- PRODUCT NAME:
- STEERING STEM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$302.40 -
LONE STAR RACING/TECH 5 IND. Steering Stems without Handlebar Clamps - LSR Handlebar A/B 19-4300107
LONE STAR RACING/TECH 5 IND.
$302.40Steering stem is 4130 chromoly, far stronger and much lighter than most stock units, Handlebar clamps are not included so the rider can choose a clamp that suits his or her particular preference, All mounting hardware included04100151- SKU:
- 04100151
- Availability:
- Ships Same Business Day
- Weight:
- 2.98 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- STEERING STEM
- RIDING STYLE:
- UTV
- UNITS:
- EACH
$302.40Qty in Cart: 0Quantity:Price:$302.40Subtotal: -
LONE STAR RACING/TECH 5 IND. Steering Stems without Handlebar Clamps - LSR Handlebar A/B 19-5000107
LONE STAR RACING/TECH 5 IND.
$323.57Steering stem is 4130 chromoly, far stronger and much lighter than most stock units, Handlebar clamps are not included so the rider can choose a clamp that suits his or her particular preference, All mounting hardware included04100153- SKU:
- 04100153
- Availability:
- Ships Same Business Day
- Weight:
- 3.42 LBS
- PRODUCT NAME:
- STEERING STEM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$323.57Qty in Cart: 0Quantity:Price:$323.57Subtotal: -
LONE STAR RACING/TECH 5 IND. Stainless Steel Tie-Rods - Extends 2" 22-11202
LONE STAR RACING/TECH 5 IND.
$88.95Constructed of stainless steel, Superior in strength to OEMLS22112- SKU:
- LS22112
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- EXTENSION IMPERIAL:
- EXTENDS 2.00'
- UNITS:
- PAIR
- PRODUCT NAME:
- TIE ROD
- RIDING STYLE:
- ATV
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- UTV
$88.95 -
LEAKPROOF SEALS Pro-Moly Fork Seals - 47 mm ID x 58 mm OD x 10 mm T 5260
LEAKPROOF SEALS
$33.95Stock fork seals wear quickly under aggressive riding, causing oil leakage, reduced damping performance, and increased maintenance costs. The LEAKPROOF SEALS Pro-Moly Fork Seals deliver superior pressure handling and dramatically lower stiction, keeping...5260- SKU:
- 5260
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- FORK SEAL
- THICKNESS METRIC:
- 10.00 MM
- TYPE:
- PRO-MOLY
- MODEL:
- FOR STANDARD FORKS
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- INSIDE DIAMETER METRIC:
- 47.00 MM
$33.95Qty in Cart: 0Quantity:Price:$33.95Subtotal: -
LEAKPROOF SEALS Classic Leak Proof Fork Seals - 48 mm ID x 58 mm OD x 8.5/10 mm T 7263
LEAKPROOF SEALS
$28.95Fork seal degradation leads to oil leakage, compromised suspension performance, and costly damage to internals—LEAKPROOF SEALS Classic Leak Proof Fork Seals eliminate these issues with a pressure-balanced design that outperforms OEM standards. Built from...04070041- SKU:
- 04070041
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- INSIDE DIAMETER METRIC:
- 37.00 MM
- THICKNESS IMPERIAL:
- 0.39'
- MODEL:
- FOR KAYABA FORKS
- TYPE:
- STANDARD
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- PRODUCT NAME:
- FORK SEAL
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 10.00 MM
- UNITS:
- PAIR
$28.95 -
LEAKPROOF SEALS Pro-Moly Fork Seals - 48 mm ID x 58 mm OD x 8.5/10 mm T - Kayaba Forks 5263
LEAKPROOF SEALS
$33.95Standard OEM fork seals degrade quickly under racing conditions, leading to oil weeping, inconsistent damping, and premature fork failure. The LEAKPROOF SEALS Pro-Moly Fork Seals eliminate these issues with a pressure-balanced design and premium Buna-N...04070043- SKU:
- 04070043
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MODEL:
- FOR KAYABA FORKS
- INSIDE DIAMETER METRIC:
- 48.00 MM
- PRODUCT NAME:
- FORK SEAL
- THICKNESS METRIC:
- 10.00 MM
- TYPE:
- PRO-MOLY
- UNITS:
- PAIR
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- RIDING STYLE:
- OFF-ROAD
$33.95 -
LEAKPROOF SEALS Classic Leak Proof Fork Seals - 47 mm ID x 58 mm OD x 10 mm T 7260
LEAKPROOF SEALS
$28.95Stock fork seals degrade quickly under racing conditions, leading to oil weeping, contaminated bushings, and unpredictable suspension performance. The LEAKPROOF SEALS Classic Fork Seals eliminate this problem with a pressure-balanced design and premium...7260- SKU:
- 7260
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- INSIDE DIAMETER METRIC:
- 47.00 MM
- MODEL:
- FOR STANDARD FORKS
- TYPE:
- STANDARD
- UNITS:
- PAIR
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- PRODUCT NAME:
- FORK SEAL
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 10.00 MM
- THICKNESS IMPERIAL:
- 0.39'
$28.95Qty in Cart: 0Quantity:Price:$28.95Subtotal: -
LEAKPROOF SEALS Classic Leak Proof Fork Seals - 49 mm ID x 60 mm OD x 10 mm T 7261
LEAKPROOF SEALS
$28.95Fork seal failure leads to oil weeping, loss of damping control, and premature wear on your stanchions—all problems that compromise handling and safety. The LEAKPROOF SEALS Classic Leak Proof Fork Seals (49mm ID x 60mm OD x 10mm T) deliver a...7261- SKU:
- 7261
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- OUTSIDE DIAMETER METRIC:
- 60.00 MM
- RIDING STYLE:
- OFF-ROAD
- THICKNESS IMPERIAL:
- 0.39'
- PRODUCT NAME:
- FORK SEAL
- THICKNESS METRIC:
- 10.00 MM
- INSIDE DIAMETER METRIC:
- 49.00 MM
- TYPE:
- STANDARD
- MODEL:
- FOR SHOWA FORKS
- UNITS:
- PAIR
$28.95 -
LEAKPROOF SEALS Classic Leak Proof Fork Seals - 40 mm ID x 52 mm OD x 10.5 mm T 7234
LEAKPROOF SEALS
$28.95Fork seal degradation doesn't just cause messy leaks—it compromises suspension performance and accelerates wear on internal components. The LEAKPROOF SEALS Classic Leak Proof Fork Seals deliver a 20% reduction in stiction compared to stock OEM seals...7234- SKU:
- 7234
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- INSIDE DIAMETER METRIC:
- 40.00 MM
- OUTSIDE DIAMETER METRIC:
- 52.00 MM
- PRODUCT NAME:
- FORK SEAL
- RIDING STYLE:
- STREET
- THICKNESS IMPERIAL:
- 0.41'
- THICKNESS METRIC:
- 10.50 MM
- TYPE:
- STANDARD
- MODEL:
- FOR STANDARD FORKS
- UNITS:
- PAIR
$28.95Qty in Cart: 0Quantity:Price:$28.95Subtotal: -
KYB Fork Piston Bushing Set - 41 mm - Metal 110034100102
KYB
$14.95Fork piston bushings are critical wear items that directly impact suspension responsiveness and damping consistency. Over time, these bushings degrade under compression cycles, leading to sluggish damping response and unpredictable handling...04130018- SKU:
- 04130018
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FOR FORK TUBE DIAMETER METRIC:
- 41.00 MM
- PRODUCT NAME:
- RING PISTON
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$14.95 -
KYB Fork Piston Bushing Set - 43 mm - Metal 110034300102
KYB
$14.95Fork piston bushings are critical wear items that directly impact suspension responsiveness and damping consistency. A worn or degraded bushing creates excessive play in the fork internals, leading to a vague, unpredictable ride and compromised braking...04130019- SKU:
- 04130019
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- PRODUCT NAME:
- RING PISTON
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- FOR FORK TUBE DIAMETER METRIC:
- 43.00 MM
$14.95
