2026 Marin Rift Zone vs 2026 GT Sensor ST Carbon Pro
The GT Sensor ST Carbon Pro size closest to your M is the S. Compare the S instead
What changes on the GT Sensor ST Carbon Pro
Compared with the Marin Rift Zone in M, the GT Sensor ST Carbon Pro in XL places the top of the head tube 42 mm higher and 70 mm further forward, relative to the bottom bracket. Its wheelbase is 98 mm longer, which can contribute to stability at speed.
- Frame stack
- +42 mm
- Higher front end
- Frame reach
- +70 mm
- Longer frame reach
- Wheelbase
- +98 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
Only the Marin Rift Zone is drawn. The GT Sensor ST Carbon Pro numbers we have for size XL are missing the chainstay length.
Geometry side by side
| Measurement | Marin Rift Zone M | GT Sensor ST Carbon Pro XL | Difference |
|---|---|---|---|
| Reach | 450 | 520 | +70 mm |
| Stack | 605.2 | 647 | +42 mm |
| Head tube angle | 65.5 | 65.4 | −0.1° |
| Seat tube angle | 77 | 77.4 | +0.4° |
| Effective top tube | 589.7 | 664 | +74 mm |
| Chainstay length | 430 | not listed | |
| Wheelbase | 1186.9 | 1285 | +98 mm |
| BB drop | not listed | not listed | |
| BB height | 339 | not listed | |
| Standover | not listed | 741 | |
| Seat tube length | 400 | 460 | +60 mm |
| Head tube length | 125 | not listed |
Differences are the GT Sensor ST Carbon Pro minus the Marin Rift Zone. Full charts: 2026 Marin Rift Zone, 2026 GT Sensor ST Carbon Pro.
Where each sits in its class
Marin Rift ZoneGT 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 | Marin Rift Zone2 | GT Sensor ST Carbon ProST Carbon Pro |
|---|---|---|
| Frame | Marin Rift Zone | GT Sensor |
| Fork | Marzocchi Bomber Z2 | RockShox Pike Select+ |
| Rear shock | Marzocchi Bomber Air inline | RockShox Deluxe Select+ |
| Shifter | Shimano Deore | SRAM NX Eagle |
| Derailleur | Shimano Deore | SRAM GX AXS |
| Cassette | Shimano Deore M6100 | SRAM PG |
| Chain | KMC X-12 | SRAM NX Eagle |
| Crankset | Marin forged alloy, 30T narrow-wide, 165mm | TruVativ Stylo |
| Chainring | Marin 30T narrow-wide | not listed |
| Bottom bracket | External sealed cartridge | SRAM DUB BSA |
| Wheelset | Marin double-wall alloy, 29mm inner, 32-hole, tubeless-compatible | WTB KOM Trail |
| Tire | Maxxis Assegai | Maxxis Dissector, Maxxis Rekon |
| Brake | Tektro M5140 | SRAM G2 RSC |
| Rotor | Tektro 180mm front, 160mm rear | SRAM G2 |
| Handlebar | Marin mini-riser | GT Alloy Riser |
| Grips | Marin Grizzly | GT Mushroom |
| Dropper post | TranzX YSI60QL | not listed |
| Saddle | Marin Speed Concept | WTB Silverado |
| Headset | not listed | FSA 42 |
| Seatpost | not listed | GT DropKick |
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