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The Trek Roscoe 20 is a 20″ aluminum frame mountain youth bike with modest components and mechanical disc brakes. The Trek has an aluminum frame, aluminum fork, aluminum 20″ wheels, much better components, a much better fork, and a 1 × 8 drivetrain providing a wider range of gears.

Roscoe 20
Roscoe 20
Trek · 2019
MSRP$489
Online Price
CategoryMountain Youth
Weight23.8 lbs / 10.8 kg
FrameAluminum
ForkAluminum
Wheel Size20″
Wheel MaterialAluminum
Brake TypeMechanical Disc
GroupsetTourney, Altus
Drivetrain1 × 8
Gear Range
Trek Roscoe 20
17 mph
SeatpostRigid
Brand Sitewww.trekbikes.com

Spec Level
est. spec level →$0$50$100$150$200$250$300$350$400$450

Estimated spec level of the Roscoe 20 compared to other mountain-youth bikes. 99 Spokes analyzes the build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more to estimate the overall spec level of each bike.  Learn more »


Geometry

Specs
Build
Frame
20˝ Dialed frame size, Alpha Gold Aluminum
Fork
Dialed 20˝, alloy
Bottom Bracket
Sealed cartridge
Headset
VP 1-1/8˝, semi-Integrated
Stem
Bontrager alloy, 31.8mm, 7 degree, w/computer and light mounts
Handlebar
Bontrager alloy, 31.8mm, 15mm rise
Saddle
Dialed 20˝ size, padded
Seatpost
Bontrager, 2-bolt head, 27.2mm, 8mm offset
Pedals
Dialed 9/16˝, platform
Grips
Dialed, Kraton
Groupset
Rear Derailleur
Shimano Tourney TX80
Crank
Alloy, 32T
Shifters
Shimano Altus M310, 8 speed
Cassette
SunRun cassette, 11-34T, 8 speed
Chain
KMC Z51
Brakes
Tektro M280 mechanical disc
Wheels
Rims
20˝ 28-hole, alloy
Front Hub
Formula DC20 Alloy
Rear Hub
Formula D22 alloy, Boost141
Tires
Cheng-Shin, 20x2.8˝
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