2026 Trek Supercaliber SLR 9.8 vs 2026 Specialized Rockhopper Expert
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Specialized Rockhopper Expert
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
We can't draw these frames yet. The Trek Supercaliber SLR 9.8 numbers we have for size ML are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Supercaliber SLR 9.8 ML | Specialized Rockhopper Expert S-27.5 | Difference |
|---|---|---|---|
| Reach | 450 | not listed | |
| Stack | 590 | not listed | |
| Head tube angle | 67.5 | 68 | +0.5° |
| Effective top tube | 605 | not listed | |
| Chainstay length | 435 | 440 | +5 mm |
| Wheelbase | 1153 | not listed | |
| BB drop | 46 | 43 | −3 mm |
| BB height | 328 | 310 | −18 mm |
| Standover | 772 | not listed | |
| Seat tube length | 440 | not listed | |
| Head tube length | 90 | not listed | |
| Seat tube angle | not listed | 73.5 |
Differences are the Specialized Rockhopper Expert minus the Trek Supercaliber SLR 9.8. Full charts: 2026 Trek Supercaliber SLR 9.8, 2026 Specialized Rockhopper Expert.
Where each sits in its class
Trek Supercaliber SLR 9.8Specialized Rockhopper Expert
Each bike is ranked against the other XC bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Trek Supercaliber SLR 9.8SLR 9.8 GX AXS | Specialized Rockhopper ExpertExpert |
|---|---|---|
| Frame | Trek SLR OCLV Mountain Carbon | Specialized A1 premium butted |
| Fork | RockShox SID | RockShox Judy Solo Air |
| Rear shock | RockShox SIDLuxe | not listed |
| Shifter | SRAM Pod Controller | SRAM SX Eagle |
| Derailleur | SRAM GX Eagle AXS | SRAM NX Eagle SX |
| Cassette | SRAM GX Eagle Transmission | SRAM SX Eagle |
| Chain | SRAM GX Eagle | SRAM SX Eagle |
| Crankset | SRAM GX Eagle DUB | Stylo Cranks |
| Chainring | SRAM 1x38T | SRAM Stylo |
| Bottom bracket | SRAM DUB | SRAM PowerSpline |
| Wheelset | Bontrager Kovee Elite 30 | Formula DC-20/DC-22 |
| Tire | Bontrager Sainte-Anne RSL XR | Specialized Ground Control 2BR |
| Brake | SRAM Level Bronze | Shimano MT200 |
| Rotor | SRAM CenterLine | SRAM DB4 |
| Handlebar | Bontrager RSL Integrated | Specialized alloy |
| Stem | Bontrager RSL Integrated | 3D-Forged Alloy |
| Headset | FSA IS2 | not listed |
| Dropper post | Bontrager Line Dropper | not listed |
| Saddle | Bontrager Verse Elite | Priority Sport |
| Pedals | not listed | Specialized Body Geometry |
| Grips | not listed | Specialized Trail |
| Seatpost | not listed | Specialized Alloy |
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