Products > White Brothers Cycling

White Brothers Cycling is a division of Mountain Racing Products, a performance bicycle component manufacturing company, located in Grand Junction, Colorado. We have been innovating suspension technology since 1996. From our early fork upgrades to our original 32mm oversized stanchion forks, cutting edge Downhill advancements, and our revolutionary IMV damping technology, White Brothers has continually focused on improving bicycle suspension.

Today, we are proud to offer a diverse line of innovative, high quality suspension products. We continue to use the highest quality, best performing materials for each application, such as 7075 T-6 series aluminum for our fork crowns and 32mm aluminum stanchions, to give you the performance you demand.

We design, test and manufacture our products in our own state of the art manufacturing facility in Grand Junction, CO, surrounded by some of the best riding in the country. This allows us to control the quality and attention to detail that makes White Brothers the finest performing suspension products on the market!

Suspension Fork
Fluid-29 135	Designed for the fast growing “all mountain” segment, the 135 is a serious tool for a serious rider. Features like a beefy crown and re-inforced steerer tube coupled with a coil spring with air-adjust and our full open bath damper make the 135 our plushest 29er fork yet. *135mm Travel *20mm thru-axle only *Disc only Specifications: Fluid 29 - 135 Dropout 20mm Thru-axle Brake mount Disc only Travel 135mm Wheel Size 29" Damping Open Oil Bath Adjustments: (external and/or internal) Rebound, Compression, Spring Preload, Air Pressure Spring Coil with Air Assist Stanchions 32mm Crown beefy single Weight 4.5lbs/2.0kg Color(s) Black Steerer Tube 250mm x 1 1/8" Axle-to-Crown 535mm
Magic-650b 100	All the same great features and performance of our light 80mm travel model but with 20mm more travel. *100mm Travel *Disc only *Available with QR or 20mm thru-axle Specifications: Magic 650b - 100 Dropout Quick Release Brake mount Disc only Travel 100mm Wheel Size 650b Damping IMV Adjustments: (external and/or internal) Threshhold, Rebound, Air Pressure Spring Linear Air Spring Stanchions 32mm Crown standard Weight 3.9lbs/1770g Color(s) Black Steerer Tube 250mm x 1 1/8" Axle-to-Crown 485mm
Magic 100 26"	For those looking for 4" of travel in a light, race ready platform, our Magic 100 features White Brothers’ cutting edge Intelligent Magnetic Valve “IMV” damping technology in our super stiff, lightweight 32mm chassis. Externally adjustable by simply turning a knob, just set the IMV where you want it and then sprint or climb with no bob and float over bumps with full active travel. *100mm travel *Available in QR or 20mm thru-axle *V-brake/Disc or Disc only Specifications: Magic 100 Dropout 20mm Thru-axle or Quick Release (can be purchased either way) Brake mount V-Brake/Disc or Disc only (can be purchased either way, disc only with 20mm thru-axle model) Travel 100mm Wheel Size 26" Damping IMV Adjustments: (external and/or internal) Threshhold, Rebound, Air Pressure Spring Linear Air Spring Stanchions 32mm Crown Standard; Beefy (for 20mm Thru-axle models) Weight 3.8lbs/1.7kg (quick release); 4.5lbs/2.0kg (thru-axle) Color(s) Black Steerer Tube 250mm x 1 1/8" Axle-to-Crown 475mm (100mm)
Groove 180	Building up a new race bike? Deck it out with a Groove 180 and get ready to stand on top of the box! Utilizing the same oil separator damper as it’s big brother, the 180 delivers the same performance with 180mm of travel and a pound less weight. Specifications: Groove 180 Dropout 20mm Thru-axle Brake mount Disc only Travel 180mm/7.1" Wheel Size 26" Damping Gas Charged Oil Adjustments: (external and/or internal) Rebound, Compression, External Preload Spring Coil Stanchions 32mm Crown dual Weight 7.6lbs/3.4kg Color(s) Black w/ Silver crowns Steerer Tube NA Axle-to-Crown 554mm
Recumbent: 20" Suspension	White Brothers is the only option for high quality suspension for your recumbent, or recumbent tandem. We use the same stiff, strong 32mm chassis but have custom tuned the spring and damping systems to accommodate for the different weighting applications these disciplines require. Specifications: RC80 Dropout Quick Release Brake mount V-Brake/Disc Travel 80mm Wheel Size 20" Damping Air Adjustments: (external and/or internal) Internal Rebound, Compression, Air pressure Spring High Pressure Air Stanchions 32mm Crown standard Weight 3.1lbs/1.4kg Color(s) Black Steerer Tube 1 1/8" Aluminum; 1" Threadless; 1" Threaded Axle-to-Crown 374mm
Rigid Fork
Rock Solid Rigid	Lightweight, stiff, compliant, and available in 3 sizes to give you more choices for converting your bike over to rigid. With 34mm carbon legs and forged aluminum crowns and dropouts, the Rock Solid family of forks will make your machine a precise, feather-weight, singletrack screamer. 465mm, 445mm, and 425mm models available. *74mm Post Mount Disc-brake only *Max Rotor Size 160mm Specifications: Rock Solid Rigid Dropout Quick Release Brake mount Disc only - 74mm Post Mount ( *Max Rotor Size 160mm or may void warranty) Wheel Size All wheel sizes fit all models. Stanchions 34mm Carbon Crown alloy Weight 1.6lbs/.7kg Color(s) Black Steerer Tube 250mm x 1 1/8" Axle-to-Crown 425mm; 445mm; 465mm

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