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Trek Roscoe 9

Trek Roscoe 9
  • Color: Matte Quicksand to Olive Fade/Black
Matte Quicksand to Olive Fade/Black
Wheel Size:
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This item is available for purchase in-store or over the phone with in-store or curb side pick up at our retail stores. Please call during store hours for more information or visit us in-store.


Roscoe 9 is Trek's best trail hardtail, built for lap after lap of dirt-filled fun.

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.

- 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 and far smoother than a coil spring
- The dropper post lets you lower your saddle on the fly, so it's out of the way on descents

Upgrades on this bike from the Roscoe 8:
- FOX Rhythm 36 fork
- Shimano SLX/XT drivetrain
- Powerful Shimano M6120 4-piston hydraulic brakes

bike frame with labeled dimensions
Bike Sizes:
A. Reach 41.5cm 44cm 45.5cm 47cm 49.5cm
B. Stack 62.6cm 63.5cm 63.9cm 64.4cm 66.6cm
C. Standover 74.1cm 74.8cm 74.2cm 75.5cm 76.5cm
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
L. Trail 13.1cm 13.1cm 13.1cm 13.1cm 13.1cm
M. Wheelbase 115.1cm 118.1cm 119.8cm 121.5cm 125cm
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
Wheelsize 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.

We really like the simplicity of a hardtail. No extra pivots and parts to maintain, easier to clean after a muddy ride, and keeps you connected to the trial. Top notch spec on the Roscoe 9, at the same price of an entry level full suspension.

We often get the question - Roscoe 9 or Fuel EX 5? Hard tail or full suspension.

A hardtail can be great to start on, as it forces you to pick good, smooth lines and you may learn more on a hardtail . But - if you're riding steep, rocky, trails, a full suspension bike will keep your back wheel on the ground for superior descending control - and it cushions the bumps for you that your legs would otherwise be absorbing. 


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
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 MicroSpline 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, 29x2.60''
Bottom Bracket Shimano SM-BB52, 73mm, threaded external bearing
Crankset 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
Handlebars Bontrager Line, alloy, 35mm, 27.5mm rise
Size S: 750mm width
Size M, M/L, L, XL: 780mm width
Stem 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
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 - 13.13 kg / 28.95 lbs (with TLR sealant, no tubes)

* Subject to change without notice.


Part Numbers

Option UPC MPN Store SKU
Matte Quicksand to Olive Fade/Black / Small / 29-inch 601842587607 5260394 BIK609798542
Matte Quicksand to Olive Fade/Black / Medium / 29-inch 601842587591 5260395 BIK609295972
Matte Quicksand to Olive Fade/Black / Medium/Large / 29-inch 601842587584 5260396 BIK606275662
Matte Quicksand to Olive Fade/Black / Large / 29-inch 601842587577 5260397 BIK605590452