2026 GT Sensor ST Carbon Pro vs 2027 Santa Cruz Tallboy
The L is the Santa Cruz Tallboy size closest to your L GT Sensor ST Carbon Pro. 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 Santa Cruz Tallboy
Compared with the GT Sensor ST Carbon Pro in L, the Santa Cruz Tallboy in L places the top of the head tube 5 mm lower and 10 mm further back, relative to the bottom bracket. Its wheelbase is 7 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −5 mm
- Lower front end
- Frame reach
- −10 mm
- Shorter frame reach
- Wheelbase
- −7 mm
- Shorter: quicker to change direction
- Head angle
- −0.3°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The GT Sensor ST Carbon Pro numbers we have for size L are missing the chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | GT Sensor ST Carbon Pro L | Santa Cruz Tallboy L | Difference |
|---|---|---|---|
| Reach | 485 | 475 | −10 mm |
| Stack | 638 | 633 | −5 mm |
| Head tube angle | 65.4 | 65.1 | −0.3° |
| Seat tube angle | 77.4 | 77.4 | ±0.0° |
| Effective top tube | 627 | 616 | −11 mm |
| Wheelbase | 1246 | 1239 | −7 mm |
| Standover | 731 | 728 | −3 mm |
| Seat tube length | 420 | 420 | ±0 mm |
| Chainstay length | not listed | 438 | |
| BB drop | not listed | 36 | |
| BB height | not listed | 338 | |
| Head tube length | not listed | 125 |
Differences are the Santa Cruz Tallboy minus the GT Sensor ST Carbon Pro. Full charts: 2026 GT Sensor ST Carbon Pro, 2027 Santa Cruz Tallboy.
Where each sits in its class
GT Sensor ST Carbon ProSanta Cruz Tallboy
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 | GT Sensor ST Carbon ProST Carbon Pro | Santa Cruz Tallboy90 |
|---|---|---|
| Frame | GT Sensor | Santa Cruz Tallboy |
| Fork | RockShox Pike Select+ | RockShox Pike Select |
| Rear shock | RockShox Deluxe Select+ | RockShox Deluxe Select+ |
| Shifter | SRAM NX Eagle | SRAM 90 Eagle Transmission |
| Derailleur | SRAM GX AXS | SRAM 90 Eagle Transmission |
| Cassette | SRAM PG | SRAM GX Eagle Transmission |
| Chain | SRAM NX Eagle | SRAM GX Eagle Transmission |
| Crankset | TruVativ Stylo | SRAM 90 Eagle DUB Transmission |
| Bottom bracket | SRAM DUB BSA | SRAM DUB |
| Wheelset | WTB KOM Trail | not listed |
| Tire | Maxxis Dissector, Maxxis Rekon | Maxxis Forekaster |
| Brake | SRAM G2 RSC | SRAM DB 8 |
| Rotor | SRAM G2 | SRAM HS2 |
| Handlebar | GT Alloy Riser | OneUp Components Aluminum Bar |
| Grips | GT Mushroom | Santa Cruz House |
| Headset | FSA 42 | Cane Creek 50 IS Integrated Headset |
| Seatpost | GT DropKick | not listed |
| Saddle | WTB Silverado | SDG Bel-Air V3 Lux-Alloy |
| Chainring | not listed | SRAM Eagle AXS |
| Hub | not listed | DT Swiss 370 |
| Rim | not listed | Reserve 30|TR AL |
| Stem | not listed | OneUp Components Enduro Stem |
| Dropper post | not listed | OneUp Components Dropper Post |
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