Trek Roscoe 8 Bike
Roscoe 8 is a trail hardtail for anyone looking to have some serious fun out in the dirt. Its 27.5+ mid-fat tires, a wide-range 1×12 drivetrain, and 120mm suspension fork make it a blast on every trail, from packed singletrack to the loose stuff. It’s a laid-back trail mountain bike dressed in a high-quality spec that’s ready to party.
Specifications
*spec applies to all sizes unless otherwise noted
Frameset
| Frame | Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141, 5mm QR |
|---|---|
| *Fork | Size: XS RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 100mm travel |
| Size: S, M, M/L, L, XL RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel |
|
| Max compatible fork travel | 120mm (XS: 100mm) |
Wheels
| Hub front | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle |
|---|---|
| Hub rear | Formula DCL-141Q, sealed bearing, 6-bolt, Shimano 10 freehub, Boost141, 5mm QR |
| Rim | Bontrager Line 40, Tubeless Ready, 28-hole, 40mm width, presta valve |
| *Spokes | Size: XS, S, M, M/L, L, XL 14g, stainless |
| Size: S, M, M/L, L, XL, XXL 14g, stainless steel, black |
|
| Tire | Maxxis Rekon, tubeless, 60 tpi, 27.5×2.80” |
| Rim strip | Bontrager TLR |
| Max tire size | 27.5×2.80″ or 29×2.40″ |
Drivetrain
| Shifter | SRAM NX Eagle, 12 speed |
|---|---|
| Rear derailleur | SRAM NX Eagle |
| *Crank | Size: XS, S Truvativ Descendant 6k Eagle, GXP, 30T alloy ring, Boost, 170mm length |
| Size: M, M/L, L, XL, XXL Truvativ Descendant 6k Eagle, GXP, 30T alloy ring, Boost, 175mm length |
|
| Bottom bracket | Truvativ Powerspline, 73mm, threaded cartridge, 118mm spindle |
| Cassette | SRAM PG-1230 Eagle, 11-50, 12 speed |
| Chain | SRAM NX Eagle, 12 speed |
| Pedal | VP-536 nylon platform |
| Max chainring size | 32T |
Components
| Saddle | Bontrager Arvada, steel rails, 138mm width |
|---|---|
| *Seatpost | Size: XS, S, M TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length |
| Size: M/L, L, XL, XXL TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length |
|
| *Handlebar | Size: XS Bontrager alloy, 31.8mm, 15mm rise, 720mm width |
| Size: S, M, M/L, L, XL, XXL Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
|
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| *Stem | Size: XS, S, M Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 50mm length |
| Size: M/L, L, XL, XXL Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 60mm length |
|
| Headset | Semi-integrated, loose ball bearing, 1-1/8” top, 1.5” bottom |
| Brake | Shimano hydraulic disc, MT501 lever, MT500 caliper |
| Brake rotor | Shimano RT56, 6-bolt, 180mm |
Weight
| Weight | M – 14.65 kg / 32.30 lbs (with tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
Sizing & fit
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.
Rider Height
Inseam
XS
137.0 – 155.0 cm
4’5.9″ – 5’1.0″
64.0 – 73.0 cm
25.2″ – 28.7″
S
153.0 – 166.5 cm
5’0.2″ – 5’5.6″
72.0 – 79.0 cm
28.3″ – 31.1″
M
161.0 – 172.0 cm
5’3.4″ – 5’7.7″
76.0 – 81.0 cm
29.9″ – 31.9″
M/L
165.5 – 179.0 cm
5’5.2″ – 5’10.5″
77.0 – 84.0 cm
30.3″ – 33.1″
L
177.0 – 188.0 cm
5’9.7″ – 6’2.0″
83.0 – 88.0 cm
32.7″ – 34.6″
XL
186.0 – 196.0 cm
6’1.2″ – 6’5.2″
87.0 – 92.0 cm
34.3″ – 36.2″
2XL
195.0 – 203.0 cm
6’4.8″ – 6’7.9″
92.0 – 95.0 cm
36.2″ – 37.4″
All measurements provided in cm unless otherwise noted.
| Frame size number | Frame size letter | Wheel size | A — Seat tube | B — Seat tube angle | Effective seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | F — Bottom bracket height | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach | N — Frame stack |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 13.5 | XS | 27.5+ | 34.3 | 69.7° | 71.1° | 9.0 | 67.1° | 55.8 | 31.0 | 5.0 | 43.8 | 4.2 | 15.2 | 105.9 | 73.1 | 35.1 | 60.5 |
| 15.5 | S | 27.5+ | 36.8 | 70.2° | 71.2° | 9.0 | 67.2° | 57.4 | 32.0 | 4.0 | 43.8 | 4.2 | 15.2 | 108.1 | 75.4 | 36.4 | 61.4 |
| 17.5 | M | 27.5+ | 41.9 | 69.6° | 70.7° | 9.0 | 67.2° | 60.9 | 31.9 | 4.1 | 43.8 | 4.2 | 15.1 | 111.0 | 75.1 | 39.4 | 61.4 |
| 18.5 | ML | 27.5+ | 44.4 | 69.6° | 70.8° | 9.0 | 67.3° | 62.5 | 31.9 | 4.1 | 43.8 | 4.2 | 15.1 | 112.6 | 74.8 | 41.0 | 61.5 |
| 19.5 | L | 27.5+ | 47.0 | 69.7° | 70.8° | 10.0 | 67.3° | 64.5 | 31.9 | 4.1 | 43.8 | 4.2 | 15.1 | 114.6 | 76.3 | 42.8 | 62.5 |
| 21.5 | XL | 27.5+ | 52.1 | 69.7° | 70.9° | 12.0 | 67.4° | 66.6 | 31.8 | 4.2 | 43.8 | 4.2 | 15.0 | 116.8 | 76.0 | 44.2 | 64.4 |
| 23.0 | XXL | 27.5+ | 55.9 | 69.7° | 70.9° | 12.0 | 67.4° | 68.0 | 31.8 | 4.2 | 43.8 | 4.2 | 15.0 | 118.2 | 81.5 | 45.7 | 64.4 |
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