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'A podium contender for any cross country racer'
'... this speedster is closer to being the best of both worlds – great pedalling efficiency combined with reasonable comfort and descending capability. Both Vital testers, who regularly race XC and often take on longer endurance rides and events, said they would buy this World Cup-winning bike.'
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'It’s a full-on racer and a very capable one at that'
'Trek's new cross-country race bike has the speed racers dream of. Everybody who has ridden the new Supercaliber has come away seriously impressed and wants more time on it. After their first ride, one was already calling it the fastest bike he had ridden – that’s saying something given the recent crop of test bikes that have passed through our offices lately.'
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'Supercaliber is pretty super'
'It’s a hoot to ride even when someone isn’t recording with a stopwatch, and it’s far more capable than its modest travel figures would suggest. As the testing progressed, I found myself pushing the Supercaliber harder and harder, and on increasingly challenging terrain.'
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'Sets the benchmark for XC race bike performance'
'… an unapologetic and uncompromising cross-country racing machine. The bike is absolutely world-class when it comes to going uphill.'
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Service manual
Time to get out the repair stand for some maintenance? Find a detailed breakdown of your bike with part numbers, torque values and platform-specific tech instructions below.
Get it hereThe science behind Supercaliber
With extensive lab and trail testing, the Trek Performance Research Engineers deliver the science to back up big claims, showing that in its second generation, the Supercaliber is not only more comfortable and efficient than its predecessor – but is even more efficient than a hardtail.
Read moreGet faster on the trail in a week
When it comes to being a better trail rider, practice makes perfect. Get seven tips from Pinkbike’s Christina Chappetta that will have you setting PRs and riding with more confidence in no time.
Read moreProduct features
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 80 mm 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
IsoStrut integrated suspension gives you just enough travel to stay in control. It's fully tunable like a standard rear shock, but without the weight penalty of a full suspension bike.
SLR OCLV Mountain Carbon
Supercaliber SLR is the World Cup lightweight frame. It drops grams by using a higher modulous carbon fibre lay-up that allows us to use less material, plus we skip internal guide tubes for cable routing, minimising material and maximising weight savings.
Rockshox Flight Attendant
Flight Attendant analyses data from sensors on the fork, shock and crank to automatically adjust your suspension between Open, Pedal and Lock positions before the thought ever crosses your mind. It does the thinking for you so you can stay focused and in the zone.
Adaptive Ride Dynamics
The Supercaliber comes with a crank-based power meter that allows Flight Attendant to collect rider and trail inputs in real time. Adaptive Ride Dynamics compiles data from your previous rides to calculate personalised Effort Zones for total suspension customisation.
You almost forgot your pedals
This bike doesn’t come with pedals because you'll have a better ride if you choose your own. See the pedal guide to find the best pedals for your riding style. Want pedals built for the race? We recommend clipless MTB pedals for control and efficiency.
Suspension Calculator
This suspension calculator will help you optimise your suspension settings for your riding weight. Simply follow the steps to find your best set up.
Learn moreComplete Tubeless System
Tubeless Ready rims and tyres make it easy to ditch the tubes so you get better traction, fewer flats and less weight. You're ready to roll straight out of the box with the included TLR rim strips, valves and sealant.
Learn moreCarbon Care Wheel Loyalty Programme
Every set of Bontrager carbon wheels is backed by the Carbon Care Wheel Loyalty Programme. 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.
SRAM Eagle AXS drivetrain
Enjoy precise, lightning fast gear changes – even when shifting under load – with Eagle AXS wireless electronic drivetrains. They're water and dust-proof, and the AXS app makes it easy to personalise your settings.
Internal dropper compatible
Internal routing ports make it easy to add a dropper post upgrade that lets you lower your saddle on the fly so it's out of your way for tricky sections of trail.
| Frame | SLR OCLV Mountain Carbon, IsoStrut, UDH, 80 mm travel |
|---|---|
| Fork | RockShox SID SL Ultimate, Flight Attendant Race Day damper, Stealth DebonAir spring, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 110 mm travel |
| Shock | Trek IsoStrut, RockShox SIDLuxe, Flight Attendant RL3 damper |
| Max compatible fork travel | 120mm, min 100mm |
| Wheel front | Bontrager Kovee RSL, OCLV Mountain Carbon, Tubeless Ready, CentreLock, Boost110, 15 mm thru axle, 29" |
|---|---|
| Wheel rear | Bontrager Kovee RSL, OCLV Mountain Carbon, Tubeless Ready, CentreLock, Boost148, 12 mm thru axle, 29" |
| Skewer rear | Bontrager Switch thru axle, removable lever |
| Tyre | Pirelli Scorpion XC, Tubeless-Ready, Team Edition Pro Wall, aramid bead, 120 tpi, 29x2.20" |
| Tyre part | Bontrager TLR sealant, 180 ml/6 oz |
| Rim strip | Bontrager TLR |
| Max tyre size | Frame: 29x2.40", Fork: See manufacturer |
| Battery | SRAM eTap battery pack (with charger) |
|---|
| Rear derailleur | SRAM XX SL Eagle AXS, T-Type |
|---|---|
| *Crank |
Size:
S, M SRAM XX SL, Flight Attendant, DUB Wide, 34T alloy ring, 55 mm chainline, 170 mm length |
|
Size:
ML, L, XL SRAM XX SL, Flight Attendant, DUB Wide, 34T alloy ring, 55 mm chainline, 175 mm length |
|
| Bottom bracket | SRAM DUB, 92 mm, PressFit |
| Cassette | SRAM Eagle XS-1299, T-Type, 10-52, 12-speed |
| Chain | SRAM XX Eagle, T-Type, 12-speed |
| Max. chainring size | 1x: 38T, min 30T |
| Saddle | Aeolus RSL, carbon rails, 145 mm width |
|---|---|
| *Seatpost |
Size:
S RockShox Reverb AXS, 100 mm travel, wireless, 31.6 mm, 340 mm length |
|
Size:
M, ML, L, XL RockShox Reverb AXS, 150 mm travel, wireless, 31.6 mm, 440 mm length |
|
| *Handlebar/stem (integrated) |
Size:
S, M, ML Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0 mm handlebar rise, 750 mm width, -13-degree stem rise, 70 mm length |
|
Size:
L Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0 mm handlebar rise, 750 mm width, -13-degree stem rise, 80 mm length |
|
|
Size:
XL Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0 mm handlebar rise, 750 mm width, -13-degree stem rise, 90 mm length |
|
| Grips | ESI Chunky |
| Head set | FSA IS-2, 1-1/8" top, 1.5" bottom |
| Brake | SRAM Level Ultimate 4-piston hydraulic disc |
| Brake rotor | SRAM CentreLine X, CentreLock, round edge, 160 mm |
| Rotor size | Max brake rotor sizes - Frame: 160mm, Fork: see fork manufacturer |
| Weight | M - 10.11 kg / 22.29 lbs (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). |