Description
World Cup XC Speed Starts Here
The Trek Supercaliber SLR Gen 2 Frameset is the foundation for a truly elite cross-country race bike—built for riders who count grams, chase seconds, and want a frame that feels electric when the pace surges. Supercaliber isn’t trying to be a traditional full-suspension XC bike. It’s a purpose-built race platform designed to climb like a rocket, accelerate instantly, and stay sharp when the course gets rough.
At the heart of this frameset is SLR OCLV Mountain Carbon, a high-modulus carbon layup engineered for maximum stiffness-to-weight. Trek trims grams by using less material where it isn’t needed and by skipping internal guide tubes for cable routing—small choices that add up to a bike that feels fast before you even clip in.
IsoStrut: Just Enough Suspension, Maximum Efficiency
Supercaliber’s defining advantage is IsoStrut rear suspension, an integrated system that delivers about 80mm of rear wheel travel without the weight and complexity of a conventional linkage-driven full suspension bike. The result is a rare blend of speed and control: you get extra traction on loose climbs, better momentum through choppy sections, and less fatigue over long laps, all while keeping pedaling efficiency front and center.
IsoStrut is fully tuneable like a standard rear shock, so you can set it up for your style, snappy and firm for smooth courses, or more compliant when the track is full of roots and rocks. It smooths the trail without muting the bike’s race-ready response, giving you the confidence to stay on the gas longer.
Unique Pivot-Less Design: Less Weight, Less Maintenance
This is where Supercaliber feels like nothing else. The frame design ditches traditional suspension hardware, connecting the main frame to pivot-less seat stays for less lateral flex, fewer maintenance points, and a cleaner race machine. That simplification matters when you’re training hard, traveling to events, and demanding consistency. You get a bike that stays tight, feels precise, and rewards aggressive riding.
The design is tuned to deliver efficiency, traction, and fatigue-fighting compliance, exactly what XC racers need when the course is fast, technical, and relentless.
Dream Build Versatility with 110mm Fork Geometry
The Supercaliber SLR Gen 2 Frameset is optimized around a 110mm fork, letting you build a modern XC race bike with the components you trust most. Whether your priority is featherweight climbing, all-out sprint power, or a more forgiving setup for technical courses, this frameset gives you the platform to tailor your build without compromise.
If you’ve been waiting for the right base for a top-tier XC build—light, efficient, and built to stay composed at race pace—this is it.
FAQ
1. What kind of riding is the Supercaliber SLR Gen 2 Frameset for?
It’s designed for cross-country (XC) racing and fast, efficient trail riding where speed and climbing matter most.
2. How much rear travel does the Supercaliber have?
It offers about 80mm of rear wheel travel via Trek’s IsoStrut integrated suspension.
3. Is IsoStrut adjustable like a normal rear shock?
Yes. IsoStrut is fully tuneable like a standard rear shock, letting you dial in performance for your course and riding style.
4. What fork travel is this frameset designed for?
Its geometry is optimized for a 110mm fork.
5. What makes Supercaliber different from a normal full-suspension XC frame?
It uses a unique design that reduces traditional suspension hardware, lowering weight, simplifying maintenance, and improving efficiency.
6. What is SLR OCLV Mountain Carbon?
It’s Trek’s high-modulus carbon construction aimed at World Cup-level weight savings and race-ready stiffness.
| Frame | SLR OCLV Mountain Carbon, IsoStrut, UDH, 80mm travel |
| Shock | Trek IsoStrut, RockShox SIDLuxe, 2-position remote damper |
| Skewer Rear | Bontrager Switch thru axle, removable lever |
| Headset | FSA IS-2, 1-1/8” top, 1.5” bottom |
Geometry Chart
| B B Drop | 4.6 |
| B B Height | 32.7 |
| Chainstay Length | 43.5 |
| Eff Seat Tube Angle | 74.5° |
| Eff Top Tube | 57.1 |
| Frame Reach | 41 |
| Frame Size Letter | S |
| Frame Stack | 59 |
| Head Angle | 67.5° |
| Head Tube Length | 9 |
| Offset | 4.3 |
| Seat Tube | 39.5 |
| Seat Tube Angle | 70.5° |
| Standover | 76 |
| Trail | 10.9 |
| Wheelbase | 111.3 |
| Wheel Size | 29″ |
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