2026 GT Sensor ST Carbon Pro vs 2026 Marin Rift Zone
The Marin Rift Zone size closest to your M is the M. Compare the M instead
What changes on the Marin Rift Zone
Compared with the GT Sensor ST Carbon Pro in M, the Marin Rift Zone in XL places the top of the head tube 13 mm higher and 55 mm further forward, relative to the bottom bracket. Its wheelbase is 50 mm longer, which can contribute to stability at speed.
- Frame stack
- +13 mm
- Higher front end
- Frame reach
- +55 mm
- Longer frame reach
- Wheelbase
- +50 mm
- Longer: steadier at speed
- Head angle
- +0.1°
- About the same head angle
- 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 M are missing the chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | GT Sensor ST Carbon Pro M | Marin Rift Zone XL | Difference |
|---|---|---|---|
| Reach | 460 | 515 | +55 mm |
| Stack | 629 | 641.8 | +13 mm |
| Head tube angle | 65.4 | 65.5 | +0.1° |
| Seat tube angle | 77.4 | 77 | −0.4° |
| Effective top tube | 600 | 663.2 | +63 mm |
| Wheelbase | 1216 | 1266.3 | +50 mm |
| Standover | 721 | 700.5 | −21 mm |
| Seat tube length | 400 | 430 | +30 mm |
| Chainstay length | not listed | 430 | |
| BB drop | not listed | 35 | |
| BB height | not listed | 343 | |
| Head tube length | not listed | 130 |
Differences are the Marin Rift Zone minus the GT Sensor ST Carbon Pro. Full charts: 2026 GT Sensor ST Carbon Pro, 2026 Marin Rift Zone.
Where each sits in its class
GT Sensor ST Carbon ProMarin Rift Zone
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 | Marin Rift Zone2 |
|---|---|---|
| Frame | GT Sensor | Marin Rift Zone |
| Fork | RockShox Pike Select+ | Marzocchi Bomber Z2 |
| Rear shock | RockShox Deluxe Select+ | Marzocchi Bomber Air inline |
| Shifter | SRAM NX Eagle | Shimano Deore |
| Derailleur | SRAM GX AXS | Shimano Deore |
| Cassette | SRAM PG | Shimano Deore M6100 |
| Chain | SRAM NX Eagle | KMC X-12 |
| Crankset | TruVativ Stylo | Marin forged alloy, 30T narrow-wide, 165mm |
| Bottom bracket | SRAM DUB BSA | External sealed cartridge |
| Wheelset | WTB KOM Trail | Marin double-wall alloy, 29mm inner, 32-hole, tubeless-compatible |
| Tire | Maxxis Dissector, Maxxis Rekon | Maxxis Assegai |
| Brake | SRAM G2 RSC | Tektro M5140 |
| Rotor | SRAM G2 | Tektro 180mm front, 160mm rear |
| Handlebar | GT Alloy Riser | Marin mini-riser |
| Grips | GT Mushroom | Marin Grizzly |
| Headset | FSA 42 | not listed |
| Seatpost | GT DropKick | not listed |
| Saddle | WTB Silverado | Marin Speed Concept |
| Chainring | not listed | Marin 30T narrow-wide |
| Dropper post | not listed | TranzX YSI60QL |
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