2026 Trek Supercaliber SLR 9.8 Gen 2 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 Gen 2 numbers we have for size S are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Supercaliber SLR 9.8 Gen 2 S | Specialized Rockhopper Expert S-27.5 | Difference |
|---|---|---|---|
| Reach | 410 | not listed | |
| Stack | 590 | not listed | |
| Head tube angle | 67.5 | 68 | +0.5° |
| Effective top tube | 571 | not listed | |
| Chainstay length | 435 | 440 | +5 mm |
| Wheelbase | 1113 | not listed | |
| BB drop | 46 | 43 | −3 mm |
| BB height | 328 | 310 | −18 mm |
| Standover | 760 | not listed | |
| Seat tube length | 395 | 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 Gen 2. Full charts: 2026 Trek Supercaliber SLR 9.8 Gen 2, 2026 Specialized Rockhopper Expert.
Where each sits in its class
Trek Supercaliber SLR 9.8 Gen 2Specialized 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 9.8 Gen 2SLR 9.8 XT Di2 Gen 2 | Specialized Rockhopper ExpertExpert |
|---|---|---|
| Frame | Trek Supercaliber | Specialized A1 premium butted |
| Fork | Fox 34 Factory | RockShox Judy Solo Air |
| Rear shock | RockShox SIDLuxe Ultimate | not listed |
| Shifter | Shimano XT M8250 Di2 | SRAM SX Eagle |
| Derailleur | Shimano XT M8250 | SRAM NX Eagle SX |
| Cassette | Shimano XT M8200 | SRAM SX Eagle |
| Chain | Shimano XT M8100 | SRAM SX Eagle |
| Crankset | E*thirteen Helix Race Carbon | Stylo Cranks |
| Chainring | E*thirteen 34 | SRAM Stylo |
| Bottom bracket | E*thirteen BB20-92 | SRAM PowerSpline |
| Wheelset | Bontrager Kovee Elite 30 | Formula DC-20/DC-22 |
| Tire | Maxxis Aspen | Specialized Ground Control 2BR |
| Brake | Shimano XT M8200 | Shimano MT200 |
| Rotor | Shimano SM-RT86 | SRAM DB4 |
| Handlebar | Bontrager RSL Integrated | Specialized alloy |
| Stem | Bontrager RSL | 3D-Forged Alloy |
| Grips | ESI Chunky | Specialized Trail |
| Headset | FSA IS2 | not listed |
| Dropper post | Bontrager Line Elite Dropper | not listed |
| Saddle | Bontrager Short Elite | Priority Sport |
| Pedals | not listed | Specialized Body Geometry |
| Seatpost | not listed | Specialized Alloy |
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