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 tyres 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
Roscoe 8 features a strong Alpha Gold Aluminium frame with internal routing for cable protection and a clean look, confidence-inspiring 27.5+ tyres mounted to Tubeless Ready Bontrager Line rims and a 120 mm RockShox 35 Gold fork with Motion Control damper and lockout. Plus, a dropper post, a SRAM NX Eagle 1x12 drivetrain and Shimano hydraulic disc brakes.
The final word
High-quality components for high-quality trail days. It's all about fun, but it's also all about performance. With a 12-speed drivetrain, hydraulic disc brakes, wide handlebars 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 27.5x2.8˝ tyres can deliver 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
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 tyres give you more grip and overall stability so you can roll over anything with confidence.
High tech frame
The Alpha Gold Aluminuum 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 at the 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 tyres 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 pedalling efficiency. Perfect for extended road sections where efficiency is more important than bump absorption.
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 Aluminium, tapered head tube, internal derailleur and dropper post routing, rack and kickstand mount, Boost141, 5 mm QR|
RockShox 35 Gold, Solo Air spring, Motion Control damper, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 100 mm travel
S, M, M/L, L, XL, XXL
RockShox 35 Gold, Solo Air spring, Motion Control damper, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 120 mm travel
|Front Hub||Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle|
|Rear Hub||Formula DCL-141Q, sealed bearing, 6-bolt, Shimano 10 freehub, Boost141, 5 mm QR|
|Rim||Bontrager Line 40, Tubeless Ready, 28-hole, 40 mm width, Presta valve|
|Spokes||14 g, stainless|
XS, S, M, M/L, L, XL, XXL
Maxxis Rekon, tubeless, 60 tpi, 27.5x2.80'"'
XS, S, M, M/L, L, XL, XXL
Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 27.5x2.80"
|Shifter||SRAM NX Eagle, 12-speed|
|Rear Derailleur||SRAM NX Eagle|
Truvativ Descendant 6k Eagle, GXP, 30T alloy ring, Boost, 170 mm length
M, M/L, L, XL, XXL
Truvativ Descendant 6k Eagle, GXP, 30T alloy ring, Boost, 175 mm length
|Bottom Bracket||Truvativ Powerspline, 73 mm, threaded cartridge, 118 mm spindle|
|Cassette||SRAM PG-1230 Eagle, 11-50, 12-speed|
|Chain||SRAM NX Eagle, 12-speed|
|Pedal||VP-536 nylon platform|
|Saddle||Bontrager Arvada, steel rails, 138 mm width|
TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length
M, M/L, L, XL, XXL
TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm length
Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width
S, M, M/L, L, XL, XXL
Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
|Grips||Bontrager XR Trail Comp, nylon lock-on|
XS, S, M
Bontrager Rhythm Comp, 31.8mm, Knock Block, 0-degree, 50 mm length
M/L, L, XL, XXL
Bontrager Rhythm Comp, 31.8mm, Knock Block, 0-degree, 60 mm length
|Headset||Semi-integrated, cartridge bearing, 1-1/8" top, 1.5" bottom|
|Brake||Shimano hydraulic disc, MT501 lever, MT500 caliper|
- M - 14.55 kg / 32.07 lbs (with tubes)
- Weight limit
- This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
Sizing & fit
Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.
137.0 - 155.0 cm
4'5.9" - 5'1.0"
64.0 - 73.0 cm
25.2" - 28.7"
153.0 - 162.0 cm
5'0.2" - 5'3.8"
72.0 - 76.0 cm
28.3" - 29.9"
161.0 - 172.0 cm
5'3.4" - 5'7.7"
76.0 - 81.0 cm
29.9" - 31.9"
170.0 - 179.0 cm
5'6.9" - 5'10.5"
80.0 - 84.0 cm
31.5" - 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 stated.
|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|