1. Loading...

Search store availability

More options

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

  1. It's more fun to be a better rider: Roscoe is so stable and forgiving, it's like an instant ability upgrade
  2. Even when the trail gets rough, the wide 27.5+ tires deliver more confidence, traction, and stability
  3. The dropper post lets you lower your saddle on the fly so it's out of the way on descents
  4. The RockShox fork's Solo Air spring can easily be adjusted for a specific rider weight, and it's lighter than a coil spring
  5. The fork’s lockout feature lets you temporarily lock the suspension for better efficiency on flat stretches

You might also like



Features

Built for fun

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

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

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.

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141, 5mm QR
*Fork Size: XS
RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 100mm travel
Size: 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)
Wheels
Hub front Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Hub rear 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
*Spokes Size: XS, S, M, M/L, L, XL
14g, stainless
Size: 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"
Drivetrain
Shifter SRAM NX Eagle, 12 speed
Rear derailleur SRAM NX Eagle
*Crank Size: XS, S
Truvativ Descendant 6k Eagle, GXP, 30T alloy ring, Boost, 170mm length
Size: 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
Components
Saddle Bontrager Arvada, steel rails, 138mm width
*Seatpost Size: XS, S, M
TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
Size: M/L, L, XL, XXL
TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length
*Handlebar Size: XS
Bontrager alloy, 31.8mm, 15mm rise, 720mm width
Size: S, M, M/L, L, XL, XXL
Bontrager alloy, 31.8mm, 15mm rise, 750mm width
Grips Bontrager XR Trail Comp, nylon lock-on
*Stem Size: XS, S, M
Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 50mm length
Size: 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
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).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based off Trek pre-production painted frames at time of publication. Weights may vary in final production.

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.

 

Rider Height

Inseam

All measurements provided in cm unless otherwise noted.

Frame size number Frame size letter Wheel size 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
13.5 XS 27.5+ 34.3 69.7° 71.1° 9.0 67.1° 55.8 31.0 5.0 43.8 4.2 15.2 105.9 73.1 35.1 60.5
15.5 S 27.5+ 36.8 70.2° 71.2° 9.0 67.2° 57.4 32.0 4.0 43.8 4.2 15.2 108.1 75.4 36.4 61.4
17.5 M 27.5+ 41.9 69.6° 70.7° 9.0 67.2° 60.9 31.9 4.1 43.8 4.2 15.1 111.0 75.1 39.4 61.4
18.5 ML 27.5+ 44.4 69.6° 70.8° 9.0 67.3° 62.5 31.9 4.1 43.8 4.2 15.1 112.6 74.8 41.0 61.5
19.5 L 27.5+ 47.0 69.7° 70.8° 10.0 67.3° 64.5 31.9 4.1 43.8 4.2 15.1 114.6 76.3 42.8 62.5
21.5 XL 27.5+ 52.1 69.7° 70.9° 12.0 67.4° 66.6 31.8 4.2 43.8 4.2 15.0 116.8 76.0 44.2 64.4
23.0 XXL 27.5+ 55.9 69.7° 70.9° 12.0 67.4° 68.0 31.8 4.2 43.8 4.2 15.0 118.2 81.5 45.7 64.4

Product Compare Rack

Start comparison