Trek Roscoe 9
Roscoe 9 is our best trail hardtail, built for lap after lap of dirt-filled fun. A 140mm FOX Rhythm 36 fork, powerful 4-piston brakes, and a fast-and-grippy wheel and tire combo deliver awesome capability whether you're nailing jumps or picking through gnarly rock gardens.
It's right for you 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.
The tech you get
A lightweight aluminum frame, a 140mm FOX Rhythm fork with beefy 36mm 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 get low on descents, corners, and jumps. Plus, fast-rolling 29er wheels and wide, grippy 2.6" tires.
The final word
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" tires make for a grippy, confident, and fast-rolling ride
- Bigger, stiffer 36mm 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
|D. Effective Top Tube||58.6cm||61.4cm||63cm||64.6cm||67.7cm|
|E. Head Tube Angle||65.0°||65.0°||65.0°||65.0°||65.0°|
|F. Head Tube Length||9cm||10cm||10.5cm||11cm||13.5cm|
|G. Seat Tube Angle||73.1°||73.1°||73.1°||73.1°||73.1°|
|H. Seat Tube Length||36cm||42cm||43.5cm||45cm||50cm|
|I. Bottom Bracket Height||32.15cm||32.15cm||32.15cm||32.15cm||32.15cm|
|J. Bottom Bracket Drop||6.1cm||6.1cm||6.1cm||6.1cm||6.1cm|
|K. Fork Rake/Offset||4.2cm||4.2cm||4.2cm||4.2cm||4.2cm|
|O. Chainstay Length||43cm||43cm||43cm||43cm||43cm|
|Effective Seat Tube Angle||74.7°cm||74.7°cm||74.7°cm||74.7°cm||74.7°cm|
Due to supply-chain issues, Specs are subject to change without notice.
|Frame||Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, ISCG 05, threaded BB, Boost148|
|Fork||Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel|
|Rims||Bontrager Line 30, Tubeless Ready, 28-hole, presta valve|
Front: Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Rear: Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12mm thru axle, removable lever
|Spokes||14g stainless steel|
|Tires||Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60''|
|Bottom Bracket||Shimano SM-BB52, 73mm, threaded external bearing|
E*thirteen Helix, 30T steel ring, 73mm spindle length, 52mm chainline
Size S, M, M/L, L: 170mm length
Size XL: 175mm length
|Shifters||Shimano SLX M7100, 12 speed|
|Rear Derailleur||Shimano XT M8100, long cage, 51T max cog|
|Cassette/Freewheel||Shimano SLX M7100, 10-51, 12 speed|
|Chain||Shimano Deore M6100, 12 speed|
|Brakes||Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper|
|Rotors||Shimano RT66, 6-bolt|
Bontrager Line, alloy, 35mm, 27.5mm rise
Size S: 750mm width
Size M, M/L, L, XL: 780mm width
Bontrager Elite, 35mm, 0 degree
Size S: 35mm length
Size M, M/L, L, XL: 45mm length
|Headset||FSA IS-2, 1-1/8'' top, 1.5'' bottom|
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|
* Subject to change without notice.
|Matte Quicksand to Olive Fade/Black / Medium/Large / 29-inch||601842587584||5260396||ROS39314613K|
|Matte Quicksand to Olive Fade/Black / Large / 29-inch||601842587577||5260397||ROS38844489K|