It's right for you if...
You want to have fun. You're searching for a playful trail bike with high-quality parts and plus-sized tires so that when you're out on the trail, the only thing you have to worry about is your face hurting from smiling too much.
The tech you get
A strong aluminum frame, confidence-inspiring 27.5+ wheels with wide, grippy tires, and an upgraded 120mm RockShox 35 Gold fork with a lockout. Plus, a SRAM NX Eagle 1x12 drivetrain with a wide range of gears for climbing, powerful hydraulic disc brakes, and a dropper post for room to get low on descents, corners, and jumps.
The final word
High-quality components for high-quality trail days. It's all about fun, but it's also all about performance. With an upgraded fork, a wide range of gears, hydraulic disc brakes, and 27.5+ wheels, this bike takes trail riding shenanigans seriously.
favorite_borderWhy you'll love it
- It's more fun to be a better rider: Roscoe is so stable and forgiving, it's like an instant ability upgrade
- Even when the trail gets rough, the wide 27.5+ tires deliver more confidence, traction, and stability
- The dropper post lets you lower your saddle on the fly so it's out of the way on descents
- The RockShox fork's Solo Air spring can easily be adjusted for a specific rider weight, and it's lighter than a coil spring
- The fork’s lockout feature lets you temporarily lock the suspension for better efficiency on flat stretches
"A total ripper"
"Roscoe is a plus-tired hardtail that's decked out with all the modern luxuries you could want. Trek has done a stand-out job with the build kit - positive feedback from the key contact points and a thumbs-up from us. Not only were we impressed by its handling, it featured all the modern conveniences, including chunky 2.8 tires and a dropper post."Read more
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Built for fun
Roscoe is a confidence-inspiring trail hardtail with stable handling, robust parts, and a longer-travel fork that gives you more control over bigger hits. Built to party with 1x drivetrains and dropper posts, these models are perfect for anyone who values fun over fast.
27.5 Plus traction
Better traction gives you more confidence. Roscoe's extra-wide 27.5 Plus tires give you more grip and overall stability so you can roll over anything with confidence.
High tech frame
The Alpha Gold Aluminum frame is packed with features that make your ride better. A tapered head tube gives you more precise, confident handling on the front end, while Boost 141 rear hub spacing gives you shorter chainstays for more nimble handling out back.
Air spring fork
Air springs are a lot lighter and more adjustable than coil springs. You can adjust the air pressure to match your rider weight, so you get the best ride.
Tubeless Ready rims and tires make it easy to ditch the tubes so you get better traction, fewer flats, and less weight. The rim strips are already installed; just add TLR valves and sealant.
Use the remote lever to lower your saddle so it's out of your way when you're descending and cornering.
Locked suspension means your fork remains inactive, increasing pedaling efficiency. Perfect for extended road sections where efficiency is more important than bump absorption.
Internal cable routing
We route shift and brake cables through the frame to keep things clean and simple. And it looks great, too.
Going for a long ride? Rack mounts make carrying accessories a breeze.
Rear kickstand mount
Chainstay mounts make it easy to install a rear kickstand that stays out of your way and supports bikes of all sizes. No more laying or leaning.
*spec applies to all sizes unless otherwise noted
|Frame||Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141, 5mm QR|
RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 100mm travel
S, M, M/L, L, XL
RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
|Max compatible fork travel||120mm (XS: 100mm)|
|Front hub||Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle|
|Rear hub||Formula DCL-141Q, sealed bearing, 6-bolt, Shimano 10 freehub, Boost141, 5mm QR|
|Rim||Bontrager Line 40, Tubeless Ready, 28-hole, 40mm width, presta valve|
XS, S, M, M/L, L, XL
S, M, M/L, L, XL, XXL
14g, stainless steel, black
|Tire||Maxxis Rekon, tubeless, 60 tpi, 27.5x2.80''|
|Rim strip||Bontrager TLR|
|Max tire size||27.5x2.80" or 29x2.40"|
|Shifter||SRAM NX Eagle, 12 speed|
|Rear derailleur||SRAM NX Eagle|
Truvativ Descendant 6k Eagle, GXP, 30T alloy ring, Boost, 170mm length
M, M/L, L, XL, XXL
Truvativ Descendant 6k Eagle, GXP, 30T alloy ring, Boost, 175mm length
|Bottom bracket||Truvativ Powerspline, 73mm, threaded cartridge, 118mm spindle|
|Cassette||SRAM PG-1230 Eagle, 11-50, 12 speed|
|Chain||SRAM NX Eagle, 12 speed|
|Pedal||VP-536 nylon platform|
|Max chainring size||32T|
|Saddle||Bontrager Arvada, steel rails, 138mm width|
XS, S, M
TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
M/L, L, XL, XXL
TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length
Bontrager alloy, 31.8mm, 15mm rise, 720mm width
S, M, M/L, L, XL, XXL
Bontrager alloy, 31.8mm, 15mm rise, 750mm width
|Grips||Bontrager XR Trail Comp, nylon lock-on|
XS, S, M
Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 50mm length
M/L, L, XL, XXL
Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 60mm length
|Headset||Semi-integrated, loose ball bearing, 1-1/8'' top, 1.5'' bottom|
|Brake||Shimano hydraulic disc, MT501 lever, MT500 caliper|
|Brake rotor||Shimano RT56, 180mm, 6-bolt|
|Weight||M - 14.65 kg / 32.30 lbs (with tubes)|
|Weight limit||This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).|
Sizing & fit
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local Trek retailer.
137.0 - 155.0 cm
4'5.9" - 5'1.0"
64.0 - 73.0 cm
25.2" - 28.7"
153.0 - 166.5 cm
5'0.2" - 5'5.6"
72.0 - 79.0 cm
28.3" - 31.1"
161.0 - 172.0 cm
5'3.4" - 5'7.7"
76.0 - 81.0 cm
29.9" - 31.9"
165.5 - 179.0 cm
5'5.2" - 5'10.5"
77.0 - 84.0 cm
30.3" - 33.1"
177.0 - 188.0 cm
5'9.7" - 6'2.0"
83.0 - 88.0 cm
32.7" - 34.6"
186.0 - 196.0 cm
6'1.2" - 6'5.2"
87.0 - 92.0 cm
34.3" - 36.2"
195.0 - 203.0 cm
6'4.8" - 6'7.9"
92.0 - 95.0 cm
36.2" - 37.4"
All measurements provided in cm unless otherwise noted.
|Frame size number||Frame size letter||A — Seat tube||B — Seat tube angle||Effective seat tube angle||C — Head tube length||D — Head angle||E — Effective top tube||F — Bottom bracket height||G — Bottom bracket drop||H — Chainstay length||I — Offset||J — Trail||K — Wheelbase||L — Standover||M — Frame reach||N — Frame stack|