The Roscoe 9 is our best all-mountain alloy hardtail, built for lap after lap of grin-inducing fun. A 140 mm FOX Rhythm 36 fork, powerful 4-piston brakes and a fast-and-grippy wheel and tyre combo deliver incredible capability whether you're nailing jumps or picking through gnarly rock gardens.
*spec applies to all sizes unless listed separately
FRAMESET
| Frame | Alpha Gold Aluminium, tapered head tube, internal derailleur & dropper post routing, ISCG 05, threaded BB, Boost148, 12 mm thru axle |
|---|---|
| Fork | Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 140 mm travel |
| Max compatible fork travel | 150mm, XS: 120mm |
COMPONENTS
| Saddle | Bontrager Arvada, hollow chromoly rails, 138 mm width |
|---|---|
| *Seatpost | Size: S TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length |
| Size: M TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm length |
|
| Size: M/L, L, XL TranzX JD-YSP18, 150 mm travel, internal routing, 31.6 mm, 470 mm length |
|
| *Handlebar | Size: S Bontrager Line, alloy, 35 mm, 27.5 mm rise, 750 mm width |
| Size: M, M/L, L, XL Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width |
|
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| *Stem | Size: S Bontrager Elite, 35 mm, 0-degree, 35 mm length |
| Size: M, M/L, L, XL Bontrager Elite, 35 mm, 0-degree, 45 mm length |
|
| Head set | FSA IS-2, 1-1/8" top, 1.5" bottom |
| *Brake | Size: S, M, M/L, L, XL Shimano M6120 4-piston hydraulic disc |
| Size: S, M, M/L, L, XL Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper |
|
| *Brake rotor | Size: S, M, M/L, L, XL Shimano RT66, 6-bolt, 180 mm |
| Size: S, M, M/L, L, XL Shimano RT66, 6-bolt, 203 mm |
|
| Rotor size | Max brake rotor sizes - Frame: 180mm, Fork: see fork manufacturer |
WHEELS
| Hub front | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle |
|---|---|
| Hub rear | Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12 mm thru axle |
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| Rim | Bontrager Line Comp 30, Tubeless-Ready, 28-hole, Presta valve |
| Tyre | Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29 x 2.60" |
| Tyre part | Bontrager TLR sealant, 180 ml/6 oz |
| Rim strip | Bontrager TLR |
| Max tyre size | Frame: 29x2.60" (XS: 27.5x2.60"), Fork: See manufacturer |
DRIVETRAIN
| Shifter | Shimano SLX M7100, 12-speed |
|---|---|
| Rear derailleur | Shimano XT M8100, long cage |
| *Crank | Size: S, M, M/L, L E*thirteen Helix, 30T steel ring, 73 mm spindle length, 52 mm chainline, 170 mm length |
| Size: XL E*thirteen Helix, 30T steel ring, 73 mm spindle length, 52 mm chainline, 175 mm length |
|
| Bottom bracket | Shimano SM-BB52, 73 mm, threaded external bearing |
| Cassette | Shimano SLX M7100, 10-51T, 12-speed |
| Chain | Shimano Deore M6100, 12-speed |
| Max. chainring size | 1x: 32T (52mm chainline), 36T (55mm chainline) |
WEIGHT
| Weight | M – 28.95 lb / 13.13 kg (with TLR sealant, no tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
**Trek Bikes reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing.
**Weights are based off pre-production products at time of publication. Weights may vary in final production.
|
Size |
Rider Height |
Inseam |
|
XS |
145 - 155 cm 4'9" - 5'1" |
69 - 73 cm 27" - 29" |
|
S |
155 - 165 cm 5'1" - 5'5" |
74 - 78 cm 29" - 31" |
|
M |
165 - 176 cm 5'5" - 5'9" |
79 - 83 cm 31" - 33" |
|
M/L |
173 - 180 cm 5'8" - 5'11" |
81 - 86 cm 32" - 34" |
|
L |
177 - 188 cm 5'10" - 6'2" |
84 - 89 cm 33" - 35" |
|
XL |
188 - 195 cm 6'2" - 6'5" |
89 - 91 cm 35" - 36" |
|
2XL |
195 - 203 cm 6'5" - 6'8" |
91 - 97 cm 36" - 38" |
