The Trek Roscoe 9 is our best all-mountain alloy hardtail, built for lap after lap of grin-inducing fun. A 140 mm FOX Rhythm 36 fork, powerful 4-piston brakes and a fast-and-grippy wheel and tyre combo deliver incredible capability whether you're nailing jumps or picking through gnarly rock gardens.
If you love the serious fun and connected feel a hardtail brings to the trail, and you want one that’s spec’d with top-notch parts that love rough and tumble runs as much as you do.
You get a lightweight aluminium frame, a 140 mm FOX Rhythm fork with beefy 36 mm stanchions, a Shimano SLX/XT 1x12 drivetrain with a wide range of gears for climbing, powerful 4-piston brakes and a dropper post for room to move around on the bike on descents, corners and jumps. Plus, fast-rolling 29er wheels and wide, grippy 2.6" tyres.
Rip laps, catch air and crush techy descents on our best hardtail. Of all the rad parts on this bike, the FOX Rhythm 36 fork is the best upgrade – it’s capable of soaking up even the roughest lines.
- 29er wheels and wide 2.6" tyres make for a grippy, confident and fast-rolling ride
- Bigger, stiffer 36 mm fork stanchions won't flex, so you can push harder with more precise, confident steering that helps you stay on your line
- The FOX fork's air spring can easily be adjusted for a specific rider weight, and it's lighter than a coil spring
- The dropper post lets you lower your saddle on the fly so it's out of the way on descents
- Frame - Alpha Gold Aluminium, tapered head tube, internal derailleur & dropper post routing, ISCG 05, threaded BB, Boost148, 12 mm thru axle
- Fork - Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 140 mm travel
- Max compatible fork travel - 150mm
- Hub front - Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle
- Hub rear - Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12 mm thru axle
- Skewer rear - Bontrager Switch thru-axle, removable lever
- Rim - Bontrager Line Comp 30, Tubeless Ready, 28-hole, Presta valve
- Size: XS - Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.60"
- Size: S, M, M/L, L, XL - Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60"
- Tyre part - Bontrager TLR sealant, 180 ml/6 oz
- Rim strip - Bontrager TLR
- Max tyre size - Frame: 29x2.60" (XS - 27.5x2.60") Fork: see manufacturer
- Shifter - Shimano SLX M7100, 12-speed
- Rear derailleur - Shimano XT M8100, long cage
- Size: XS, S, M, M/L, L - E*thirteen Helix, 30T steel ring, 73 mm spindle length, 52 mm chainline, 170 mm length
- Size: XL - E*thirteen Helix, 30T steel ring, 73 mm spindle length, 52 mm chainline, 175 mm length
- Bottom bracket - Shimano SM-BB52, 73 mm, threaded external bearing
- Cassette - Shimano SLX M7100, 10-51, 12-speed
- Chain - Shimano Deore M6100, 12-speed
- Max. chainring size - 52mm chainline: 32T, 55mm chainline: 34T
- Saddle - Bontrager Arvada, hollow chromoly rails, 138 mm width
- Size: XS, S - TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length
- Size: M - TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm length
- Size: M/L, L, XL - TranzX JD-YSP18, 150 mm travel, internal routing, 31.6 mm, 470 mm length
- Size: XS, S - Bontrager Line, alloy, 35 mm, 27.5 mm rise, 750 mm width
- Size: M, M/L, L, XL - Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
- Grips - Bontrager XR Trail Comp, nylon lock-on
- Size: XS, S - Bontrager Elite, 35 mm, 0-degree, 35 mm length
- Size: M, M/L, L, XL - Bontrager Elite, 35 mm, 0-degree, 45 mm length
- Head set - FSA IS-2, 1-1/8" top, 1.5" bottom
- Size: XS, S, M, M/L, L, XL - Shimano M6120 4-piston hydraulic disc
- Size: XS, S, M, M/L, L, XL - Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper
- Brake Rotor
- Size: XS, S, M, M/L, L, XL - Shimano RT66, 6-bolt, 180mm
- Size: XS, S, M, M/L, L, XL - Shimano RT66, 6-bolt, 203 mm
- weight - M – 28.95 lb / 13.13 kg (with TLR sealant, no tubes)
- Weight limit - This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).