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It's right for you if...
You want one cross country race bike that works perfectly on all courses. You’re looking for a light frame, cutting-edge suspension technology, and race-ready components so you can churn out the fastest XC rides of your life.
The tech you get
An ultra-lightweight, full OCLV Mountain Carbon frame with 60mm of travel, a 100mm RockShox Reba RL fork, and Trek's exclusive lightweight IsoStrut FOX Performance shock designed specifically for Supercaliber. Plus, a SRAM NX Eagle 1x12 drivetrain, and Bontrager carbon wheels.
The final word
Supercaliber is designed to crush cross country races, including the World Cup. It's fast, capable, efficient, and features IsoStrut—our game-changing integrated suspension technology.
See it in action
favorite_borderWhy you'll love it
- Supercaliber is a World Cup-worthy bike that’s quick, capable of soaring through techy terrain, and nearly as light as a hardtail
- Our exclusive IsoStrut shock provides tuneable, damped suspension for a smooth and efficient ride
- Pivotless seat stays save on weight and actively bend to help soak up trail chatter
- You'll never again have to wonder, "What's faster for this course, full suspension or hardtail?"
"Dutch MTB of the Year"
"A thoroughbred cross country race bike. A light hardtail with the comfort of a fully. Truly the winner of 2020."
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"2020 Mountain Bike of the Year"
Supercaliber earned top honors from BIKE Spain, whose editors said this innovative ride delivered "twice the highest performance" they'd ever tested.
"The new XC race benchmark"
"It's simply everything you want from an XC race bike. If someone riding a Supercaliber beats you next season, take solace in the fact that their bike is faster than yours."
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"Does it deliver? Yes!"
"Locked out, Supercaliber climbs as well as a fully rigid bike, but with the fork and shock open, the bike has gobs of traction heading uphill and minimal pedal feedback in the suspension. Descending, it's much more sure-footed in technical terrain than a hardtail and feels like it has way more travel than it really does."
Read moreFeatures
Nothing else like it
Supercaliber’s unique frame design ditches traditional suspension hardware so there’s less weight, less maintenance, and less lateral flex. IsoStrut connects the mainframe to the pivot-less seat stays to offer about 60mm of rear wheel travel. This design offers a unique blend of efficiency, traction, and fatigue-fighting compliance that keeps racers fresh and in control.
IsoStrut integrated suspension gives you just enough travel to stay in control. It's fully tuneable like a standard rear shock, but without the weight penalty of a full suspension bike.
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OCLV Mountain Carbon
Trek's mountain-specific carbon is engineered to withstand the extreme demands of off-road racing. Advanced analysis allows our designers to create a frame with the best blend of light weight, responsiveness, and just enough compliance in the seat stays to eliminate the need for a heavy rear pivot system.
Trek's Straight Shot frame design optimizes the stiffness-to-weight ratio for a more responsive ride. You'll be able to push harder and stay more planted on your line when the going gets rough.
Suspension Calculator
This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.
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Complete Tubeless System
Tubeless Ready rims and tires make it easy to ditch the tubes so you get better traction, fewer flats, and less weight. You're ready to roll right out of the box with the included TLR rim strips, valves, and sealant.
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Carbon Care Wheel Loyalty Program
Every set of Bontrager carbon wheels is backed by the Carbon Care Wheel Loyalty Program. In the unlikely event that you damage your Bontrager carbon wheels within the first two years of ownership, we’ll repair or replace them for free.
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Water bottle capacity
Space for two water bottles makes it easier to stay hydrated on long days.
Blendr stem
Bontrager stem technology lets you clip your gear directly to the stem for clean looks, maximum user friendliness.
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Control Freak Cable Management
The lightest, quietest, most versatile cable management system allows any combination of shift, brake, lockout, and dropper post lines to be routed through the frame for clean looks and the ultimate custom setup.
Boost148/110
Wider dropouts (110mm front, 148mm rear) give you the stiffness of a 27.5" wheel with all the benefits of a 29" wheel, and Boost148 in the rear lets you run wider tires and a larger chainring without affecting q-factor and pedaling efficiency.
Specifications
*spec applies to all sizes unless otherwise noted
| Frame | OCLV Mountain Carbon main frame & stays, IsoStrut, tapered head tube, Knock Block, Control Freak internal routing, Boost148, 60mm travel |
|---|---|
| Fork | RockShox Reba RL, Solo Air spring, Motion Control damper, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 100mm travel |
| Shock | Trek IsoStrut, Fox Performance shock, air spring, DPS 2-position damper, 235x32.5mm |
| Max compatible fork travel | 120mm |
| Wheel front | Bontrager Kovee Elite 23 carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle |
|---|---|
| Wheel rear | Bontrager Kovee Elite 23 carbon, Tubeless Ready, centerlock, Shimano 8/9/10 freehub, Boost148, 12mm thru axle |
| Tire | Bontrager XR2 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.20'' |
| *Tire part |
Size:
S, M, M/L, L, XL Bontrager TLR sealant, 6oz |
|
Size:
S, M, M/L, L, XL Bontrager TLR valve, 50mm |
|
|
Size:
S, M, M/L, L, XL Bontrager TLR sealant |
|
| Max tire size | 29x2.40" |
| Shifter | SRAM NX Eagle, 12 speed |
|---|---|
| Rear derailleur | SRAM NX Eagle |
| *Crank |
Size:
S SRAM NX Eagle, DUB, 32T alloy ring, Boost (52mm chainline), 170mm length |
|
Size:
M, M/L, L, XL SRAM NX Eagle, DUB, 32T alloy ring, Boost (52mm chainline), 175mm length |
|
| Bottom bracket | SRAM DUB, 92mm, PressFit |
| Cassette | SRAM PG-1230 Eagle, 11-50, 12 speed |
| Chain | SRAM NX Eagle, 12 speed |
| Max chainring size | 36T |
| Saddle | Bontrager Montrose Comp, steel rails, 138mm width |
|---|---|
| *Seatpost |
Size:
S Bontrager Comp, 6061 alloy, 31.6mm, 8mm offset, 330mm length |
|
Size:
M, M/L, L, XL Bontrager Comp, 6061 alloy, 31.6mm, 8mm offset, 400mm length |
|
| Handlebar | Bontrager Comp, alloy, 31.8mm, 5mm rise, 720mm width |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| *Stem |
Size:
S Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 60mm length |
|
Size:
M, M/L Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 70mm length |
|
|
Size:
L, XL Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 80mm length |
|
| *Headset |
Size:
S, M, M/L, L, XL Knock Block Integrated, 62-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom |
|
Size:
S, M, M/L, L, XL Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom |
|
| Brake | Shimano hydraulic disc, MT501 lever, MT500 caliper |
| *Brake rotor |
Size:
S, M, M/L, L, XL Shimano RT56, 6-bolt, 180mm |
|
Size:
S, M, M/L, L, XL Shimano RT56, 6-bolt, 160mm |
| Weight | M - 11.51 kg / 25.38 lbs (with TLR sealant, no 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
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.5 | S | 29" | 39.4 | 70.0° | 74.0° | 9.0 | 69.0° | 56.5 | 32.0 | 5.3 | 43.0 | 4.4 | 9.6 | 107.9 | 75.0 | 39.5 | 59.4 |
| 17.5 | M | 29" | 41.9 | 70.5° | 74.0° | 9.0 | 69.0° | 59.5 | 32.0 | 5.3 | 43.0 | 4.4 | 9.6 | 110.6 | 76.0 | 42.5 | 59.4 |
| 18.5 | ML | 29" | 44.5 | 70.5° | 74.0° | 9.0 | 69.0° | 61.0 | 32.0 | 5.3 | 43.0 | 4.4 | 9.6 | 112.1 | 76.0 | 44.0 | 59.4 |
| 19.5 | L | 29" | 47.0 | 71.0° | 74.0° | 9.0 | 69.0° | 62.5 | 32.0 | 5.3 | 43.0 | 4.4 | 9.6 | 113.6 | 78.7 | 45.5 | 59.4 |
| 21.5 | XL | 29" | 50.8 | 71.0° | 74.0° | 10.5 | 69.0° | 65.9 | 32.0 | 5.3 | 43.0 | 4.4 | 9.6 | 117.2 | 78.7 | 48.5 | 60.8 |
| 23.0 | XXL | 29" | 54.6 | 71.0° | 74.0° | 12 | 69.0° | 68.3 | 32 | 5.3 | 43 | 4.4 | 9.6 | 119.7 | 78.7 | 50.5 | 62.2 |
