New arrival 29% off

Trek roscoe 9

$1,999.93 $2,799.99
By Trek
SKU: 5260394 // Barcode: 601842587607
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Roscoe 9 is our best all-mountain alloy hardtail, built for lap after lap of grin-inducing fun. A 140mm FOX Rhythm 36 fork, powerful 4-piston brakes, and a fast-and-grippy wheel and tire combo deliver awesome capability whether youre nailing jumps or picking through gnarly rock gardens.
  • 29er wheels and wide 2.6" tires make for a grippy, confident, and fast-rolling ride
  • Bigger, stiffer 36mm fork stanchions wont flex, so you can push harder with more precise, confident steering that helps you stay on your line
  • The FOX forks air spring can easily be adjusted for a specific rider weight, and its lighter than a coil spring
  • The dropper post lets you lower your saddle on the fly so its out of the way on descents

Ready to get rowdy

With 140mm front travel, trail-smashing 29-inch wheels, and dialed-for-dirt frame features, Roscoe is ready to get rowdy on your favorite rides.

Progressive trail geometry

A long reach, slack head angle, steep seat angle, and short chain stays combine for a ride thats confidence inspiring, yet still nimble and fun.

The strong quiet type

Roscoe stays well protected with a double-sided chainstay guard, tough downtube guard, and internal cable guides that help your ride stay quiet, even over rough trails.

Shimano XT

Shimano XT is the original mountain bike groupset and trusted by generations of mountain bikers around the world. Whatever the trail, wherever you ride, XT is your solution for mountain biking today. Reliable shifting. Superior braking. Intuitive maintenance. XT is the high performance workhorse you can count on.

You almost forgot your pedals

This bike doesn’t come with pedals because youll have a better ride if you choose your own. Explore the pedal guide to find the best pedals for your riding style. Reach for flat pedals for simple versatility or go for clipless MTB pedals if you want control & efficiency.


Frame Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, ISCG 05, threaded BB, Boost148, 12mm thru axle
Fork Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel
Wheel Front /
Tire Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60
Tire Part Bontrager TLR sealant, 6oz
Hub Front Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Hub Rear Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12mm thru axle
Rim Bontrager Line Comp 30, Tubeless Ready, 28-hole, Presta valve
Rim Strip Bontrager TLR
Skewer Rear Bontrager Switch thru axle, removable lever
Shifter Shimano SLX M7100, 12 speed
Rear Derailleur Shimano XT M8100, long cage
Crank E*thirteen Helix, 30T steel ring, 73mm spindle length, 52mm chainline, 170mm length
Bottom Bracket Shimano SM-BB52, 73mm, threaded external bearing
Cassette Shimano SLX M7100, 10-51T, 12 speed
Chain Shimano Deore M6100, 12 speed
Brake Shimano M6120 4-piston hydraulic disc // Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper
Brake Rotor Shimano RT66, 6-bolt, 180mm // Shimano RT66, 6-bolt, 203mm
Saddle Bontrager Arvada, hollow chromoly rails, 138mm width
Seatpost TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
Seat Collar Bolt-on, 36.4mm
Handlebar Bontrager Line, alloy, 35mm, 27.5mm rise, 750mm width
Stem Bontrager Elite, 35mm, 0 degree, 35mm length
Headset FSA IS-2, 1-1/8 top, 1.5 bottom
Grips Bontrager XR Trail Comp, nylon lock-on

Geometry Chart

SMMLLXL
B B Drop 6.1
B B Height 32.1
Chainstay Length 43
Eff Seat Tube Angle 74.7°
Eff Top Tube 58.6
Frame Reach 41.5
Frame Size Letter S
Frame Stack 62.6
Head Angle 65.0°
Head Tube Length 9
Offset 4.2
Seat Tube 36
Seat Tube Angle 73.1°
Standover 74.1
Trail 13.1
Wheelbase 115.1
Wheel Size 29"
B B Drop 6.1
B B Height 32.1
Chainstay Length 43
Eff Seat Tube Angle 74.7°
Eff Top Tube 61.4
Frame Reach 44
Frame Size Letter M
Frame Stack 63.5
Head Angle 65.0°
Head Tube Length 10
Offset 4.2
Seat Tube 42
Seat Tube Angle 73.1°
Standover 74.8
Trail 13.1
Wheelbase 118.1
Wheel Size 29"
B B Drop 6.1
B B Height 32.2
Chainstay Length 43
Eff Seat Tube Angle 74.7°
Eff Top Tube 63
Frame Reach 45.5
Frame Size Letter ML
Frame Stack 63.9
Head Angle 65.0°
Head Tube Length 10.5
Offset 4.2
Seat Tube 43.5
Seat Tube Angle 73.1°
Standover 74.2
Trail 13.1
Wheelbase 119.8
Wheel Size 29"
B B Drop 6.1
B B Height 32.1
Chainstay Length 43
Eff Seat Tube Angle 74.7°
Eff Top Tube 64.6
Frame Reach 47
Frame Size Letter L
Frame Stack 64.4
Head Angle 65.0°
Head Tube Length 11
Offset 4.2
Seat Tube 45
Seat Tube Angle 73.1°
Standover 75.5
Trail 13.1
Wheelbase 121.5
Wheel Size 29"
B B Drop 6.1
B B Height 32.2
Chainstay Length 43
Eff Seat Tube Angle 74.7°
Eff Top Tube 67.7
Frame Reach 49.5
Frame Size Letter XL
Frame Stack 66.6
Head Angle 65.0°
Head Tube Length 13.5
Offset 4.2
Seat Tube 50
Seat Tube Angle 73.1°
Standover 76.5
Trail 13.1
Wheelbase 125
Wheel Size 29"