Details
Roscoe 8 is a trail hardtail for anyone looking to have some serious fun out in the dirt. It's a laid-back trail mountain bike dressed in a high-quality spec that's ready to party.
With 29er wheels, wide grippy 2.6" tires, and big suspension 140mm RockShox 35 Gold fork it's a blast on every trail from packed singletrack to the loose stuff.
Roscoe 8 features a lightweight aluminum frame, a SRAM NX Eagle 1x12 drivetrain with a wide range of gears for climbing, powerful 4-piston brakes, and a dropper post for room to get low on descents, corners, and jumps. The fast-rolling 29er wheels are built with 108-tooth Rapid Drive hub for instant engagement.
What you get over Roscoe 7:
- RockShox 35 Gold RL fork
- SRAM NX/GX/X1 Eagle drivetrain
- Powerful Shimano MT4100 lever, MT420 caliper 4-piston hydraulic brakes
Looking for Trek's best alloy hardtail? Level up with Roscoe 9 for with an upgraded FOX Rhythm fork with bigger beefy 36mm stanchions so you can push harder with more precise, confident steering that helps you stay on your line.
Wheel size:
- Sizes X-Small – Small: 27.5-inch
- Sizes Medium – X-Large: 29-inch
Due to supply-chain issues, Specs are subject to change without notice.

XS | S | M | ML | L | XL | |
---|---|---|---|---|---|---|
A. Reach | 39cm | 41.5cm | 44cm | 45.5cm | 47cm | 49.5cm |
B. Stack | 59.1cm | 62.6cm | 63.5cm | 63.9cm | 64.4cm | 66.6cm |
C. Standover | 72.9cm | 74.1cm | 74.8cm | 74.2cm | 75.5cm | 76.5cm |
D. Effective Top Tube | 55.2cm | 58.6cm | 61.4cm | 63cm | 64.6cm | 67.7cm |
E. Head Tube Angle | 65.0° | 65.0° | 65.0° | 65.0° | 65.0° | 65.0° |
F. Head Tube Length | 9cm | 9cm | 10cm | 10.5cm | 11cm | 13.5cm |
G. Seat Tube Angle | 73.1° | 73.1° | 73.1° | 73.1° | 73.1° | 73.1° |
H. Seat Tube Length | 34cm | 36cm | 42cm | 43.5cm | 45cm | 50cm |
I. Bottom Bracket Height | 31.85cm | 32.15cm | 32.15cm | 32.15cm | 32.15cm | 32.15cm |
J. Bottom Bracket Drop | 4.5cm | 6.1cm | 6.1cm | 6.1cm | 6.1cm | 6.1cm |
K. Fork Rake/Offset | 4.2cm | 4.2cm | 4.2cm | 4.2cm | 4.2cm | 4.2cm |
L. Trail | 12.2cm | 13.1cm | 13.1cm | 13.1cm | 13.1cm | 13.1cm |
M. Wheelbase | 112cm | 115.1cm | 118.1cm | 119.8cm | 121.5cm | 125cm |
O. Chainstay Length | 43cm | 43cm | 43cm | 43cm | 43cm | 43cm |
Effective Seat Tube Angle | 74.7°cm | 74.7°cm | 74.7°cm | 74.7°cm | 74.7°cm | 74.7°cm |
Wheelsize | 27.5" | 29" | 29" | 29" | 29" | 29" |
Trek Roscoe 7, 8, and 9 models come tubeless out of the box. Sealant, valves, and rim stips included.
Ditching the tubes and going tubeless will help you get the most performance out of your tires. There are no tubes to pinch, so you can run lower pressures for better traction, and you get more control and a smoother, faster ride. As an added bonus, a tubeless setup can help seal punctures before they become flats.
Specs
Frame | Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, ISCG 05, threaded BB, Boost148 |
---|---|
Fork |
RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, Boost110, Maxle Stealth, 140mm travel Size XS: 37mm offset Size S, M, M/L, L, XL: 42mm offset |
Rims | Bontrager Line 30, Tubeless Ready, 28-hole, presta valve |
Hubs |
Front: Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle Rear: Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano 10 freehub, Boost148, 12mm thru axle, removable lever |
Spokes | 14g stainless steel |
Axles |
Front: 15x110mm Rear: 12x148mm |
Tires |
Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi Size XS: 27.5x2.60'' Sizes S, M, M/L, L, XL: 29x2.60'' |
Bottom Bracket | SRAM DUB, 73mm, BSA threaded |
Crankset |
SRAM X1 Eagle, DUB, 30T steel ring, Boost (52mm chainline) Sizes XS, S, M, M/L, L: 170mm length Size XL: 175mm length |
Shifters | SRAM NX Eagle, 12 speed |
Rear Derailleur | SRAM GX Eagle |
Cassette/Freewheel | SRAM PG-1230 Eagle, 11-50, 12 speed |
Chain | SRAM NX Eagle, 12 speed |
Brakes | Shimano 4-piston hydraulic disc, MT4100 lever, MT420 caliper |
Rotors | Shimano RT66, 6-bolt |
Handlebars |
Sizes XS, S: Bontrager alloy, 31.8mm, 15mm rise, 750mm width Sizes M, M/L, L, XL: Bontrager Rhythm Comp, alloy, 31.8mm, 15mm rise, 780mm width |
Stem |
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree Sizes XS, S: 35mm length Sizes M, M/L, L, XL: 50mm length |
Headset | FSA IS-2, 1-1/8'' top, 1.5'' bottom |
Seatpost |
TranzX JD-YSP18, internal routing, 31.6mm Size XS, S: 100mm travel, 361mm length Size M: 130mm travel, 425mm length Size M/L, L, XL: 150mm travel, 445mm length |
Saddle | Bontrager Arvada, steel rails, 138mm width |
Pedals | VP-536 nylon platform |
Accessories & Extras | Bontrager TLR sealant, 6oz, Bontrager TLR valve, 50mm |
Weight | M - 13.54 kg / 29.86 lbs (with TLR sealant, no tubes) |
* Subject to change without notice.
Videos
Part Numbers
Option | UPC | MPN | Store SKU |
---|---|---|---|
Matte Black Olive / Small / 29-inch | 601842587546 | 5260376 | BIK451598932 |
Matte Black Olive / Medium / 29-inch | 601842587539 | 5260377 | BIK452949512 |
Matte Black Olive / Medium/Large / 29-inch | 601842587522 | 5260378 | BIK45615452 |
Matte Black Olive / Large / 29-inch | 601842587515 | 5260379 | BIK454066772 |
Matte Black Olive / X-Large / 29-inch | 601842587508 | 5260380 | BIK458561812 |
Mulsanne Blue / Small / 29-inch | 601842587485 | 5260382 | BIK426802982 |
Mulsanne Blue / Medium/Large / 29-inch | 601842587461 | 5260384 | BIK423370392 |
Mulsanne Blue / X-Large / 29-inch | 601842587447 | 5260386 | BIK421839332 |