2027 Santa Cruz Tallboy vs 2026 GT Sensor ST Carbon Pro
The L is the GT Sensor ST Carbon Pro size closest to your XL Santa Cruz Tallboy. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the GT Sensor ST Carbon Pro
Compared with the Santa Cruz Tallboy in XL, the GT Sensor ST Carbon Pro in L places the top of the head tube 8 mm lower and 10 mm further back, relative to the bottom bracket. Its wheelbase is 21 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −8 mm
- Lower front end
- Frame reach
- −10 mm
- Shorter frame reach
- Wheelbase
- −21 mm
- Shorter: quicker to change direction
- Head angle
- +0.3°
- Steeper: sharper steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Santa Cruz Tallboy is drawn. The GT Sensor ST Carbon Pro numbers we have for size L are missing the chainstay length.
Geometry side by side
| Measurement | Santa Cruz Tallboy XL | GT Sensor ST Carbon Pro L | Difference |
|---|---|---|---|
| Reach | 495 | 485 | −10 mm |
| Stack | 646 | 638 | −8 mm |
| Head tube angle | 65.1 | 65.4 | +0.3° |
| Seat tube angle | 77.5 | 77.4 | −0.1° |
| Effective top tube | 637 | 627 | −10 mm |
| Chainstay length | 440 | not listed | |
| Wheelbase | 1267 | 1246 | −21 mm |
| BB drop | 36 | not listed | |
| BB height | 338 | not listed | |
| Standover | 742 | 731 | −11 mm |
| Seat tube length | 450 | 420 | −30 mm |
| Head tube length | 140 | not listed |
Differences are the GT Sensor ST Carbon Pro minus the Santa Cruz Tallboy. Full charts: 2027 Santa Cruz Tallboy, 2026 GT Sensor ST Carbon Pro.
Where each sits in its class
Santa Cruz TallboyGT Sensor ST Carbon Pro
Each bike is ranked against the other trail 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 | Santa Cruz Tallboy90 | GT Sensor ST Carbon ProST Carbon Pro |
|---|---|---|
| Frame | Santa Cruz Tallboy | GT Sensor |
| Fork | RockShox Pike Select | RockShox Pike Select+ |
| Rear shock | RockShox Deluxe Select+ | RockShox Deluxe Select+ |
| Shifter | SRAM 90 Eagle Transmission | SRAM NX Eagle |
| Derailleur | SRAM 90 Eagle Transmission | SRAM GX AXS |
| Cassette | SRAM GX Eagle Transmission | SRAM PG |
| Chain | SRAM GX Eagle Transmission | SRAM NX Eagle |
| Crankset | SRAM 90 Eagle DUB Transmission | TruVativ Stylo |
| Chainring | SRAM Eagle AXS | not listed |
| Bottom bracket | SRAM DUB | SRAM DUB BSA |
| Tire | Maxxis Forekaster | Maxxis Dissector, Maxxis Rekon |
| Hub | DT Swiss 370 | not listed |
| Rim | Reserve 30|TR AL | not listed |
| Brake | SRAM DB 8 | SRAM G2 RSC |
| Rotor | SRAM HS2 | SRAM G2 |
| Handlebar | OneUp Components Aluminum Bar | GT Alloy Riser |
| Stem | OneUp Components Enduro Stem | not listed |
| Grips | Santa Cruz House | GT Mushroom |
| Headset | Cane Creek 50 IS Integrated Headset | FSA 42 |
| Dropper post | OneUp Components Dropper Post | not listed |
| Saddle | SDG Bel-Air V3 Lux-Alloy | WTB Silverado |
| Wheelset | not listed | WTB KOM Trail |
| Seatpost | not listed | GT DropKick |
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