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Trek Rumblefish Pro (2012)


Product Category
Brand Trek
ModelRumblefish Pro
Size17.5, 19, 21"
ColorMatte Sepia


Bottom bracketPress Fit
BrakesShimano Deore XT M785 hydraulic disc brakes
CassetteShimano Deore XT M771-10 11-36, 10 speed
CranksetShimano Deore XT M780, 44/32/24
FeaturesGary Fisher Collection Innovative bikes imagined by Gary Fisher, built by Trek. More momentum - 29 Inch Wheels A bigger wheel holds its momentum better. So you stay rolling over rough stuff and maintain your speed through the corners. Alpha Platinum: Best Our high-performance lightweight aluminum alloy is continuously cold extruded and butted at multiple points for ultimate weight reduction and superior strength. Frames built with Alpha Platinum feature a high degree of hydroforming to create the most complex industrial designs for the lightest weight, and are finished using Trek's smooth-weld finishing process. You choose, with ABP Convert ABP Convert offers all the benefits of our original ABP, and comes with interchangeable wheel interface options so you can swap from a 142x12mm rear wheel back to a traditional style 135x5mm wheel. Thru-axle stiff, QR quick Our robust, confidence-inspiring 142mm hub + 12mm thru-axle system is about 35% stiffer than an open dropout design. The wider hub is easier to install than a conventional 135x5mm system, thanks to a tabbed guide in the frame's dropout. And for those riders who still want to use their 135mm thru-axle wheels, we include hardware adapters for an easy interchange. But this new system is so easy to use, we’re confident you’ll stick with it. Can't use full Fork travel? We solved that. Ever notice how your fork only really uses about 90% of the travel? A couple years ago, we noticed that too—almost every rider we saw on the trail had an O-ring that just wouldn’t hit the fork’s crown. So we dug a little deeper, strapped on the data acquisition device and turned on the dyno. We found that different types of terrain require different things from a fork. Ride bigger lines, flow through braking bumps with ease, and ride with more control. More control, all the time The dual chambers in a DRCV fork seamlessly trade off to give you exactly the suspension you need for every inch of your ride. • Small bumps are easily absorbed. No more jarring high-frequency vibrations. • Uses more mid-stroke travel more often, so you can carry more speed through braking bumps, flow through rock gardens, hold your line at speed. • Awesome big hit control. With DRCV in the fork, you get consistent use of full travel. That’s more control, all the time. Can't control big hits? We solved that. Most full suspension air-shock bikes use a small-volume canister. A small-volume shock is efficient, because it doesn't move up and down excessively when you pedal. But it doesn't have the best big-hit control. To compensate, some companies use a less-efficient larger-volume shock. Others try to strike a balance with cumbersome manual controls or with fussy, overly complex shock systems. So to gain control, you either lose efficiency, or you lose simplicity. DRCV shocks solve that.DRCV seamlessly adjusts its air volume based on the size bump you encounter. You get supple feel on the small bumps, seamless control over midsize bumps and harsh hits, with less rear-wheel hang-up. Seemingly bottomless travel on the rough stuff. Big hits seem to disappear. All this, with the pedaling efficiency of a small-volume shock. Small Bumps: DRCV is supple and controlled like any other Fox RP2 or RP23 rear shock at sag and over small bumps. Midsize bumps: This is where DRCV shines. At 50% of compression, the shock opens up more air volume. Where other shocks wallow and stick, DRCV offers seamless control through the nastiest terrain you can find. Finish: Throughout the final stages of compression, DRCV behaves like a larger- volume air shock. Return: As the shock returns to its idle state, the shock closes the secondary air chamber to return to its small-bump compliance. Slow-handling 29ers? Gary solved that. The many advantages of bigger wheels can come with a price: sleepy handling. Gary solved that, with G2. G2 Geometry is our system-wide solution to slow 29er handling. We've optimized frame geometry and fork geometry in tandem to create a bike that handles nimbly in tight, twisty singletrack without compromising high-speed stability. It's why our Fisher Collection 29ers handle better than any others. 29ers don't fit? We solved that. Many Trek models feature a wider range of sizes than the industry standard, to give a better fit to more riders. 29er too flexy? We solved that. Bigger is better. Oversized hub, flanges, and end caps create a flex-free 29" wheel capable of chewing through technical terrain, for more confidence in rough stuff and in the corners. 15QR A 15mm front thru axle makes steering more precise for more control, and the quick release feature allows for easy wheel removal. Robust = heavy? We solved that. E2 is the evolution of the traditional 1-1/8" headset to a tapered head tube, fork, and headset system. E2 tapers from a 1.5" lower to a 1-1/8" upper headset to provide more material where it matters most, resulting in a stronger, lighter frame with point-and-shoot control. Press-fit bottom bracket Press-fit BB is a bottom bracket shell that allows the bearings to press into the frame rather than thread in like standard bottom brackets. This provides a wider stance for the frame’s tubing juncture, resulting in a stronger frame. This wider stance also simulates benefits of an OCLV Carbon-only technology, BB95. 3x10 With a 10-speed cassette and a 3-ring crankset, 3x10 delivers a closer-ratio drivetrain, a wider range of gears, and increased efficiency and durability.
Fork typeFox 32 Float RLC, Trek DRCV air spring, Kashima coat, lockout, rebound, compression, custom G2 Geometry, 51mm offset crown, E2 tapered steerer, 15QR thru axle, 120mm travel, tuned by Trek in California
Frame typeAlpha Platinum Aluminum main frame & stays w/ABP Convert, magnesium swing link, G2 Geometry, E2 tapered head tube, replaceable derailleur hanger, 120mm travel
Front derailleurShimano Deore XT, direct mount
HeadsetFSA NO.57, E2, ACB sealed bearings
Hub frontBontrager FCC 15mm thru-axle front hub
Hub rearBontrager FCC 142x12mm rear hub
Rear derailleurShimano XTR M980 Shadow
Recommended forMountain, XC Mountain, All Mountain
Rims typeBontrager Rhythm Pro TLR Disc wheel system, 28 hole, Tubeless Ready
SaddleBontrager Evoke 3, titanium rails
ShiftersShimano Deore XT M780, 10 speed
Shock typeFox Performance Series Float RP-3 w/DRCV, Boost Valve, 3-position Climb-Ride-Descend ProPedal, rebound; 7.25x1.875", tuned by Trek in California
StemBontrager Rhythm Pro, 31.8mm
TiresBontrager 29-4 Team, 29x2.3"
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