Trek X-Caliber 8 Bike
X-Caliber 8 is a cross country mountain bike made for fast laps and long days on the trail. It’s built with special attention to value and the parts that make the biggest difference in performance. A 1x SRAM drivetrain, RockShox fork, and hydraulic disc brakes make it a great choice for new mountain bikers and XC racers searching for fast, fun, singletrack adventure.
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 Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42mm offset, Boost110, 15mm Maxle Lite, 80mm travel |
| Size: S RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, Boost110, 15mm Maxle Lite, 100mm travel |
|
| Size: M, M/L, L, XL, XXL RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, Boost110, 15mm Maxle Stealth, 100mm travel |
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 | Size: XS, S, M, M/L, L, XL, XXL Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, presta valve |
| Size: XS, S, M, M/L, L, XL, XXL Bontrager Kovee, double-wall, Tubeless Ready, 32-hole, 23mm width, presta valve |
|
| Spokes | 14g, stainless |
| *Tire | Size: XS, S Bontrager XR3 Comp, wire bead, 30 tpi, 27.5×2.20” |
| Size: M, M/L, L, XL, XXL Bontrager XR3 Comp, wire bead, 30tpi, 29×2.20” |
Drivetrain
| Shifter | SRAM SX Eagle, 12 speed |
|---|---|
| Rear derailleur | SRAM SX Eagle |
| *Crank | Size: XS, S SRAM SX Eagle, GXP, 30T steel ring, Boost, 170mm length |
| Size: M, M/L, L, XL, XXL SRAM SX Eagle, GXP, 30T steel ring, Boost, 175mm length |
|
| Bottom bracket | Truvativ Powerspline, 73mm, threaded cartridge, 118mm spindle |
| Cassette | SRAM PG-1210 Eagle, 11-50, 12 speed |
| Chain | SRAM SX Eagle, 12 speed |
| Pedal | VP-536 nylon platform |
Components
| Saddle | Bontrager Arvada, steel rails, 138mm width |
|---|---|
| *Seatpost | Size: XS, S Bontrager alloy, 31.6mm, 12mm offset, 330mm length |
| Size: M Bontrager alloy, 31.6mm, 12mm offset, 360mm length |
|
| Size: M/L, L, XL, XXL Bontrager alloy, 31.6mm, 12mm offset, 400mm length |
|
| *Handlebar | Size: XS Bontrager alloy, 31.8mm, 5mm rise, 690mm width |
| Size: S, M, M/L, L, XL, XXL Bontrager alloy, 31.8mm, 5mm rise, 720mm width |
|
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| *Stem | Size: XS, S Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 60mm length |
| Size: M Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length |
|
| Size: M/L, L Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length |
|
| Size: XL, XXL Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length |
|
| Headset | Semi-integrated, loose ball bearing, 1-1/8” top, 1.5” bottom |
| Brake | Shimano MT200 hydraulic disc |
| *Brake rotor | Size: XS, S, M, M/L, L, XL, XXL Shimano RT26, 6-bolt,160mm |
| Size: L, XL, XXL Shimano RT26, 6-bolt,180mm |
Weight
| Weight | M – 13.80 kg / 30.42 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 | 73.5° | 73.5° | 9.0 | 69.3° | 54.4 | 29.2 | 5.8 | 42.5 | 4.2 | 8.8 | 103.6 | 69.8 | 37.6 | 56.5 |
| 15.5 | S | 27.5″ | 36.8 | 73.5° | 73.5° | 9.0 | 69.3° | 55.5 | 30.2 | 4.8 | 42.5 | 4.2 | 8.8 | 105.3 | 72.4 | 38.5 | 57.4 |
| 17.5 | M | 29″ | 41.9 | 71.9° | 73.0° | 9.0 | 69.5° | 60.1 | 31.1 | 5.8 | 43.8 | 4.2 | 9.4 | 110.9 | 74.8 | 41.8 | 59.8 |
| 18.5 | ML | 29″ | 44.4 | 71.9° | 73.0° | 9.0 | 69.5° | 61.7 | 31.0 | 5.8 | 43.8 | 4.2 | 9.4 | 112.5 | 75.7 | 43.4 | 59.8 |
| 19.5 | L | 29″ | 47.0 | 71.9° | 73.0° | 10.0 | 69.5° | 63.7 | 31.0 | 5.8 | 43.8 | 4.2 | 9.4 | 114.5 | 75.7 | 45.1 | 60.8 |
| 21.5 | XL | 29″ | 52.1 | 71.9° | 73.0° | 12.0 | 69.5° | 65.8 | 31.0 | 5.8 | 43.8 | 4.2 | 9.4 | 116.7 | 76.8 | 46.6 | 62.7 |
| 23.0 | XXL | 29″ | 55.9 | 71.9° | 73.0° | 12.0 | 69.5° | 67.2 | 31.1 | 5.8 | 43.8 | 4.2 | 9.4 | 118.1 | 80.4 | 48.0 | 62.7 |
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