2023 Trek

Roscoe 9

A 29″ / 29″ aluminum frame hardtail trail bike with upper mid-range components.
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Manufacturer Price

Weight28.9 lbs  
SuspensionHardtail, 140mm
ForkFox Rhythm Float 36
Wheels29″ / 29″ Aluminum
Drivetrain1 × 12
GroupsetXT, SLX
BrakesHydraulic Disc
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Top Comparison
Ride Feel

Based on frame geometry and build specs.

Roscoe 9
Other Trail bikes

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear


26 mph

Roscoe 9

26 mph

Similar Bikes

Highest gear


Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Roscoe model range

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5'1" – 5'6"


5'4" – 5'10"


5'8" – 5'11"


5'9" – 6'3"


6'1" – 6'5"

Rider Fit Notes

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Price History
Outdoor Gear Lab
Trek Roscoe 7

Aug 2023 · Pat Donahue

The Trek Roscoe 7 is an adaptable and well-rounded hardtail mountain bike that is competent in most of situations. Climbing abilities were rock solid and...

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Roscoe 7 - Trek's Best Looking Bike Is 1650 USD (1880 CAD), Complete!

Mar 2023

The Trek Roscoe 7 is a solidly priced, Deore M6100 equipped hardtail with an awesome appearance in any of its three livery choices.

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Bike Perfect
Trek Roscoe 6 review – more minus than plus

Sep 2022 · Guy Kesteven

Roscoe looks great on paper but it’s disappointing on the trail

  • Super wide size range

  • Dropper post

  • Tapered head tube

  • Potential plus tire gains

  • Awful fork

  • Outdated frame

  • Very heavy

  • Cable rattle

  • Numb brakes

  • Wet hating, tubed plus tires

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Trek Roscoe 6 review - MBR

Aug 2022 · Alan Muldoon

Launched back in 2019, the Trek Roscoe 6 is definitely showing signs of ageing. Yes, it’s had a fresh lick of paint and some specification updates since then, the biggest change being the addition of a dropper seat post. Other than that though, it’s essentially the same bike that now costs £1k rather than £675. But is it good enough to be added to our best hardtail mountain bikes guide? Trek Roscoe 6 need to know: Massive 2.8in Kenada tyres on smaller 27.5in rims boost confidence and control The Trek Roscoe 6 gets a 130mm dropper post as standard Shimano Deore 10sp drivetrain and 11-46t cassette The wider 141mm Boost quick release dropouts provide extra tyre clearance But it’s not the jump in price or the front derailleur mount that instantly date the Roscoe 6. It’s the 27.5in wheels shod with voluminous 2.8in tyres. Every other bike in this category has made the switch to 29in wheels with narrower tyres, so has Trek simply backed the wrong horse? Frame Before we answer that question, let’s take a closer look at the frame. Manufactured from Trek’s Alpha Gold aluminium the Roscoe comes in six unique sizes, XS though to XXL. Dig into the number though and again the Roscoe looks dated with an elevated BB height and relatively steep head angle. It’s a good thing then that the generous reach and short chainstays have stood the test of time. Yes, the seat angle is a little too laid back to provide an optimum position for seated climbing, but it does open up the top tube measurement so the bike feels roomy in every other situation. Suspension Fatter tyres need fatter forks to provide the necessary clearance, so the Roscoe 6 comes with a SR Suntour XCM 32. It’s coil sprung and listed as having 120mm travel, but grease marks on the chrome steel upper tubes indicated that we never managed to get more than 100mm travel out of it. No bad thing, as the firm spring rate helped prop up the front end and maintain better overall geometry for shredding. The Suntour fork also has no rebound damping adjustment, so limiting its movement with a firmer spring is a crude, but effective way to maintain control. On the plus side, we welcomed the additional stiffness and security of the 15mm bolt-thru axle. Components Like Specialized, Trek has its contact points dialled. The Bontrager Arvada saddle is firm but comfy and we can’t emphasise enough how good it is not having to stop and fiddle with a dodgy quick release seat collar every five minutes. Yes, the action of the 130mm TranzX post feels a little crude, and it also adds at least half a kilo to the overall weight of the bike, but it’s worth it. The balloon-like 2.8in Kenda Havok tyres, and especially the fatter inner tubes, increase the overall weight too, so combined with the wider 35mm rims the Roscoe 6 weights in a portly 15.57kg, making it the …Continue reading »

  • Plus size tyres

  • Rattly Suntour fork

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Singletrack World
Trek Roscoe 9 review

Feb 2022 · Daz Hall

As a gnarly trail shredding bike, it won’t surprise anyone that the Trek Roscoe is biased in favour of the rowdier type of riding.

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Trek Roscoe 7 review

Nov 2021 · Luke Marshall

The Roscoe’s a well-rounded package that delivers an engaging ride, but with a few compromises

  • Lots of frame sizes to choose from

  • Shimano Deore gears work well

  • Best frame protection on test

  • Wide tyres can feel vague and roll at high speeds

  • Weak brakes compared to others

  • TranzX dropper post was sticky

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Loam Wolf
Review: Trek Roscoe 9 Hardtail

Sep 2021 · JP Purdom

The Trek Roscoe 9is a killer offering for riders wanting an all-around hardtail ripper with a balanced geo and solid build spec.

  • Surprisingly capable

  • Balanced geometry

  • Comfortable climbing position

  • Reasonable price

  • Minor spec niggles

  • Sore ankles

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Trek Introduces the New Roscoe Hardtail

Jul 2021 · Beta

We know trickle-down technology, but trickle-down geometry is far too rare. the new Trek Roscoe brings the shred to the masses.

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99 Spokes on YouTube99 Spokes on YouTube

Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, ISCG 05, threaded BB, Boost148, 12mm thru axle

BB StandardBSA, 73mm, Threaded

Tire Clearance2.6"

ColorMatte Quicksand to Olive Fade / Black


Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel


Spring TypeAir

Bottom Bracket

Shimano SM-BB52, 73mm, threaded external bearing


FSA IS-2, 1-1/8'' top, 1.5'' bottom


Size: S, Bontrager Elite, 35mm, 0 degree, 35mm length; Size: M, ML, L, XL, Bontrager Elite, 35mm, 0 degree, 45mm length


Size: S, Bontrager Line, alloy, 35mm, 27.5mm rise, 750mm width; Size: M, ML, L, XL, Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width


Bontrager Arvada, hollow chromoly rails, 138mm width


Size: S, TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length; Size: M, TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length; Size: ML, L, XL, TranzX JD-YSP18, 150mm travel, internal routing, 31.6mm, 470mm length



Bontrager XR Trail Comp, nylon lock-on

Rear Derailleur

Shimano XT M8100, long cage


Size: S, M, ML, L, E*thirteen Helix, 30T steel ring, 73mm spindle length, 52mm chainline, 170mm length; Size: XL, E*thirteen Helix, 30T steel ring, 73mm spindle length, 52mm chainline, 175mm length


Shimano SLX M7100, 12 speed


Shimano SLX M7100, 10-51T, 12 speed


Shimano Deore M6100, 12 speed


Size: S, M, ML, L, XL, Shimano M6120 4-piston hydraulic disc; Size: S, M, ML, L, XL, Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper

TypeHydraulic Disc


Bontrager Line Comp 30, Tubeless Ready, 28-hole, Presta valve

Front Hub

Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle

Rear Hub

Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12mm thru axle


Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60''

Disc Rotors

Size: S, M, ML, L, XL, Shimano RT66, 6-bolt, 180mm; Size: S, M, ML, L, XL, Shimano RT66, 6-bolt, 203mm

Rider Notes
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Last updated May 25