Description
Trek Supercaliber Carbon 2021 – Medium
The Trek Supercaliber is one of the most innovative cross-country race bikes on the market, built to dominate climbs, sprints, and technical courses with unmatched speed and efficiency. Unlike traditional full suspension or pure hardtails, the Trek Supercaliber Gen 2 and Gen 1 models feature Trek’s exclusive IsoStrut integrated suspension, delivering 60mm of rear travel paired with 100mm up front. This revolutionary design creates the ultimate balance between the efficiency of a hardtail and the control of a full suspension mountain bike.
The 2021 Trek Supercaliber lineup includes high-performance builds such as the Trek Supercaliber 9.9, Trek Supercaliber 9.8, and Trek Supercaliber 9.7, each engineered with a lightweight OCLV Mountain Carbon frame and race-ready components. Whether you choose the premium Supercaliber 9.9 XX1 AXS or the more accessible Trek Supercaliber 9.8 SLR, every bike in the range is designed for riders chasing podium finishes and all-out performance.
When reading a Trek Supercaliber review, you’ll quickly see why it’s a favorite among elite XC riders worldwide. Its precise handling, lightweight frame, and IsoStrut technology make it one of the fastest bikes on today’s World Cup circuit. If you’re searching for a Trek Supercaliber for sale, this 2021 model remains a top choice for racers and serious enthusiasts alike.
Key Features of the Trek Supercaliber
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Frame: OCLV Mountain Carbon with IsoStrut integrated suspension.
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Suspension: 60mm rear travel with Fox Factory or RockShox SID fork (100mm).
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Geometry: Progressive XC geometry with short chainstays for quick acceleration.
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Models: Available in Supercaliber 9.9, Supercaliber 9.8, Supercaliber 9.7, and frameset options.
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Use Case: Perfect for XC racing, marathon endurance events, or fast singletrack.
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Variants: Available as Trek Supercaliber Gen 1 and updated Trek Supercaliber Gen 2 models.
Engineered for speed, efficiency, and domination on the XC course, the Supercaliber Carbon Mountain Bike 2021 – Medium is a no-compromise racing machine. Featuring Trek’s OCLV Mountain Carbon frame and the exclusive IsoStrut integrated suspension, this lightweight full suspension setup offers 60mm of rear travel for confident control without sacrificing pedaling efficiency. Paired with a 100mm front suspension fork, 29″ race wheels, and a reliable 1x drivetrain, the Supercaliber is built to crush climbs, fly through singletrack, and push your limits on every lap.
Trek Supercaliber Models
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Supercaliber 9.9 – Flagship build with SRAM XX1 Eagle AXS drivetrain, Bontrager Kovee XXX carbon wheels, and Fox Factory suspension.
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Supercaliber 9.8 – Mid-high tier option with SRAM GX Eagle or Shimano XT drivetrain, carbon wheels, and Fox Performance suspension.
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Supercaliber 9.7 – More accessible build with alloy wheels and SRAM NX/GX drivetrain.
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Trek Supercaliber Frameset – For riders who want to build a custom race bike around the IsoStrut carbon frame.
Both Supercaliber Gen 1 and Supercaliber Gen 2 offer these variants, with the Gen 2 refining geometry for improved stability and control.
Performance on the Trail
The Trek Supercaliber mountain bike is all about efficiency. The IsoStrut system gives just enough rear travel to smooth out roots and rocks while eliminating the flex and pedal bob often found in traditional full suspension bikes. This makes the Supercaliber feel incredibly responsive under power.
Climbs are where the Supercaliber 9.9 and Supercaliber 9.8 SLR truly shine. Lightweight carbon wheels and a stiff frame mean every watt translates directly into forward motion. On descents, the short travel keeps the bike nimble, while the slackened geometry compared to older XC hardtails adds confidence at speed.
For riders who compete in marathon XC events, stage races, or want a single bike for both racing and endurance, the Supercaliber Trek is unmatched.
Trek Supercaliber Review Highlights
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Riders love the balance between speed and control.
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Lightweight OCLV carbon frame makes it a rocket on climbs.
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IsoStrut provides consistent suspension support without excess weight.
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Available in multiple builds to suit different budgets.
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Strong resale value – if you’re considering a used Trek Supercaliber, they remain highly sought after.
Supercaliber Gravel & Versatility
While primarily a pure XC race machine, many riders experiment with the Supercaliber gravel bike setup by fitting lighter wheels and semi-slick tires. Thanks to its efficiency, it can double as a fast endurance bike for mixed terrain.
Why Choose the Supercaliber?
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Unique Technology – IsoStrut is a game-changer for XC racing.
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Proven at the Highest Level – Raced by Trek Factory Racing athletes on the World Cup circuit.
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Multiple Build Options – From Supercaliber 9.7 to Supercaliber 9.9 AXS.
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Future-Ready – Gen 2 offers updated geometry for modern racing demands.
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Value – Strong performance whether buying new or a used Trek Supercaliber.
Specifications
Details
| Year | 2021 |
| Brand | Trek |
| Model | Supercaliber |
| Size | Medium |
| Frame Material | Carbon Fiber |
| Drivetrain | SRAM, 1×12 spd |
| Weight | 26 lbs 4 oz |
Build
| Fork | RockShox Reba RL |
| Fork Travel | 100mm |
| Rear Shock | FOX Performance Series IsoStrut |
| Rear Shock Travel | 60mm |
| Brakes | Shimano MT500, Disc Brakes – Hydraulic |
| Shifters | SRAM GX Eagle, Mechanical |
| Rear Derailleur | SRAM NX Eagle |
| Bottom Bracket Shell | Press fit |
| Crankset | SRAM NX Eagle, 32t, 175mm |
| Cassette | SRAM PG-1230 Eagle, 11-50t |
| Chain | SRAM |
| Handlebar | Bontrager Comp Alloy, 720mm |
| Headset | FSA |
| Stem | Race Face Alloy, 31.8mm x 60mm, 6° |
| Seatpost | Bontrager Line, 31.6mm |
| Seatpost Travel | 125mm |
| Saddle | Bontrager Montrose w/ Cr-Mo Rails |
| Front Axle Spacing | 15x110mm (Thru-Axle) |
| Rear Axle Spacing | 12x148mm Boost |
| Wheelset | Bontrager Kovee Elite 23 Carbon Tubeless Compatible, Bontrager |
| Front Tire | Teravail Drawpoint TR, 29″ x 2.4″ |
| Rear Tire | Continental Cross King, 29″ x 2.2″ |
| Tire Type | Tubeless |
| Tubeless Compatibility | Bike ships tubeless |
| Pedals | Sold separately |



























































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