2026 Trek Supercaliber SLR 9.9 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 9.9 Gen 2 numbers we have for size ML are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Supercaliber SLR 9.9 Gen 2 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 9.9 Gen 2. Full charts: 2026 Trek Supercaliber SLR 9.9 Gen 2, 2026 Specialized Rockhopper Expert.
Where each sits in its class
Trek Supercaliber SLR 9.9 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 9.9 Gen 2SLR 9.9 XTR 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 XTR M9250 Di2 | SRAM SX Eagle |
| Derailleur | Shimano XTR M9250 Di2 | SRAM NX Eagle SX |
| Cassette | Shimano XTR M9200 | SRAM SX Eagle |
| Chain | Shimano XTR M9100 | 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 RSL | Formula DC-20/DC-22 |
| Tire | Maxxis Aspen | Specialized Ground Control 2BR |
| Brake | Shimano XTR M9200 | Shimano MT200 |
| Handlebar | Bontrager RSL | Specialized alloy |
| Stem | Bontrager RSL | 3D-Forged Alloy |
| Headset | FSA IS2 | not listed |
| Dropper post | Fox Transfer SL Factory | not listed |
| Saddle | Aeolus RSL | Priority Sport |
| Pedals | not listed | Specialized Body Geometry |
| Rotor | not listed | SRAM DB4 |
| Grips | not listed | Specialized Trail |
| Seatpost | not listed | Specialized Alloy |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
