Motorcycle Forks & Components
![Motorcycle Forks & Components](https://ic.motorcycleid.com/motorcycle/pages/forks-components/motorcycle-forks-components_collage_0.jpg)
- Progressive Suspension®Fork Spring Kit (11-1124)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1125)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1127)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1129)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1104)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1108)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1109)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1110)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1111)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1112)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1114)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1115)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1102)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Fork Spring Kit (11-1103)Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive" during...Progressive RateHigh Quality Chrome Silicon wire$111.95
- Progressive Suspension®Front Drop-In Fork Lowering System (10-2008)Front Drop-In Fork Lowering System by Progressive Suspension®. These kits, when combined with shorter than stock rear shocks, will give you that low, custom look. Comes complete with Fork Springs, spacers, and instructions. Available in...High grade materials paired with the innovative designExceptional quality at an affordable price$149.95
- Progressive Suspension®Front Fork Lowering Kit (10-2009)Front Fork Lowering Kit by Progressive Suspension®. These kits, when combined with shorter than stock rear shocks, will give you that low, custom look. Comes complete with Fork Springs, spacers, and instructions. Available in a 1"...High grade materials paired with the innovative designExceptional quality at an affordable price$149.95
- Progressive Suspension®Front Fork Lowering Kit (10-1572)Front Fork Lowering Kit by Progressive Suspension®. These kits, when combined with shorter than stock rear shocks, will give you that low, custom look. Comes complete with Fork Springs, spacers, and instructions. Available in a 1"...High grade materials paired with the innovative designExceptional quality at an affordable price$143.95
- Progressive Suspension®Front Fork Spring Kit (11-1156)Front Fork Spring Kit by Progressive Suspension®. The Original Progressive Rate Fork Springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end "dive"...Progressive RatePrecision-wound$126.95
- Progressive Suspension®Monotube Cartridge Fork Kit Lowering (31-2542)Monotube Cartridge Fork Kit Lowering by Progressive Suspension®. True high performance front suspension has made its way to the Harley aftermarket. Progressive Suspension’s state of the art Fork Cartridge Kit represents the peak of...Improved Resistance to Front brake diveImproved front end stability$574.95
- Progressive Suspension®Monotube Cartridge Kit (31-2511)Monotube Cartridge Kit by Progressive Suspension®. Type: Stock. Affordable high performance front suspension has finally made its way to the Honda. Progressive Suspension's state of the art Monotube Cartridge Fork Kit represents a high...Engineered around your bike’s suspension needsCutting-edge technology for an ultimately comfortable ride$459.95
- Progressive Suspension®Monotube Cartridge Kit with External Preload Adjust (31-2519)Monotube Cartridge Kit with External Preload Adjust by Progressive Suspension®. True high performance front suspension is finally available for the HD 49mm front ends. Progressive Suspension has gone back to the drawing board and...Adjustable PreloadImproved Resistance to Front brake dive$574.95
- Progressive Suspension®Monotube Cartridge Kit with External Preload Adjust (31-2521)Monotube Cartridge Kit with External Preload Adjust by Progressive Suspension®. True high performance front suspension is finally available for the HD 49mm front ends. Progressive Suspension has gone back to the drawing board and...Adjustable PreloadImproved Resistance to Front brake dive$574.95
- Progressive Suspension®Monotube Fork Cartridge Kit (31-2543)Monotube Fork Cartridge Kit by Progressive Suspension®. True high performance front suspension has made its way to the Harley aftermarket. Progressive Suspension's state of the art Fork Cartridge Kit represents the peak of performance...Improved Resistance to Front brake diveImproved front end stability$390.95
- Progressive Suspension®Monotube Fork Cartridge Kit (31-2541)Monotube Fork Cartridge Kit by Progressive Suspension®. True high performance front suspension has made its way to the Harley aftermarket. Progressive Suspension’s state of the art Fork Cartridge Kit represents the peak of performance...Engineered around your bike’s suspension needsCutting-edge technology for an ultimately comfortable ride$574.95
- Progressive Suspension®Monotube Fork Cartridge Kit (31-2540)Monotube Fork Cartridge Kit by Progressive Suspension®. True high performance front suspension has made its way to the Harley aftermarket. Progressive Suspension’s state of the art Fork Cartridge Kit represents the peak of performance...Engineered around your bike’s suspension needsCutting-edge technology for an ultimately comfortable ride$574.95
- Progressive Suspension®Touring Monotube Cartridge Kit with FST (31-4007)Touring Monotube Cartridge Kit with FST by Progressive Suspension®. Type: Lowered. True high performance front suspension is finally available for the HD Touring line. Progressive Suspension has combined their road smoothing Frequency...Stock Height or LoweredFrequency Sensing Technology (FST) damper$574.95
- Progressive Suspension®Touring Monotube Cartridge Kit with FST (31-4002)Touring Monotube Cartridge Kit with FST by Progressive Suspension®. Type: Stock. True high performance front suspension is finally available for the HD Touring line. Progressive Suspension has combined their road smoothing Frequency...Stock Height or LoweredFrequency Sensing Technology (FST) damper$574.95
- Progressive Suspension®Touring Monotube Cartridge Kit with FST (31-4004)Touring Monotube Cartridge Kit with FST by Progressive Suspension®. Type: Stock. True high performance front suspension is finally available for the HD Touring line. Progressive Suspension has combined their road smoothing Frequency...Stock Height or LoweredFrequency Sensing Technology (FST) damper$574.95
- Progressive Suspension®Touring Monotube Cartridge Kit with FST (31-4005)Touring Monotube Cartridge Kit with FST by Progressive Suspension®. Type: Lowered. True high performance front suspension is finally available for the HD Touring line. Progressive Suspension has combined their road smoothing Frequency...Stock Height or LoweredFrequency Sensing Technology (FST) damper$574.95
- Race Tech®Fork Springs 0.26 kg/mm (FRSP 384226)Fork Springs 0.26 kg/mm by Race Tech®. Quantity: 2 per Pack. Spring Rate: 0.26 kg/mm. High-performance spring with extremely accurate rates. This top-grade product is expertly made in compliance with stringent industry standards to...High qualityThese springs are made from chrome silicon wire$155.28
The front wheels of almost all types of motorcycles are connected to their frames using forks via triple clamps or yokes. The majority of motorcycle forks are designed to incorporate the front suspension and braking system while allowing the front wheel to rotate about the steering axis during maneuvering. Besides dampening the shocks from road irregularities, your fork can define the handling and style of your machine. You can always upgrade your front suspension and improve the appearance of the front end of your bike to match your style and meet your needs with high-quality products offered in our selection of motorcycle forks and components.
The most popular type of front motorcycle suspension uses a telescopic fork arrangement with a shock-absorbing mechanism. It is a relatively simple, efficient, and reliable construction that offers a perfect combination of handling and cushioning. A steering stem holds both top and lower triple clams creating a steering axis. These clamps keep fork leg tubes parallel and perfectly aligned. At the bottom, fork leg tubes are connected via the wheel axle. Inside a standard fork tube, you can find a damping system with a coil spring. A spring compresses absorbing the energy of impact but rushes to release it immediately. A damper reduces spring oscillations transforming kinetic energy into heat.
Older motorcycle models came from the factory equipped with so-called damper-rod forks where damping is performed by oil that is forced into tiny openings in a fork leg every time the wheel hits a bump. The outer fork tube reacts to road irregularities, while inner tube with a spring performs the role of a plunger that presses oil into the leg. In systems with fixed fork leg orifices, if the wheel moves up and down slowly on minor bumps or at low speed, oil flows through holes without much resistance, which means that such a suspension becomes too soft at lower speeds and too hard at higher speeds or larger bumps.
A cartridge fork was introduced to solve this problem. Instead of fixed orifices, oil flows through a series of shims stacked against the face of the piston. They deflect more at higher speeds allowing for less restricted oil flow. In such a system, valves are enclosed into a cylinder cartridge attached to the bottom of the outer fork tube, so it moves up and down when the fork compresses and rebounds. In the cartridge, one piston with a check valve is fixed to the end of a damping rod and allows oil to pass through during rebound strokes while the check valve on the lower piston traps oil in the cartridge. As the fork compresses, the two pistons change roles providing effective damping.
Besides telescopic architecture, there are few variations of motorcycle forks, including leading and trailing links, telelever, duolever, springer, and others. Springer forks with outer, chrome-plated coil springs give motorcycles a classic or vintage look. For those who want to change the style of their bikes, we can offer a wide range of lower fork covers, fork boots, fork tube covers, fork guards, and much more. On the digital shelves of our online store, you can find a variety of complete regular and inverted front end kits, fork legs, springer fork kits, oil lock collars, fork springs, seal bullets, monotube cartridge fork kits, seals, bushings, and so on.
Featured Brands
Related Categories
Shock Absorbers & Struts
Suspension Springs
Lowering & Lift Kits
Air Shocks & Components
Linkage Arms
Suspension Gaskets, Seals & Dusts
Suspension Bearings
Suspension Mounts & Hardware
Suspension Arms & Ball Joints
Fork Custom Accessories
Fork & Shock Protectors
Suspension Oils
Swingarms & Components
Suspension Tools