2026 Transition Sentinel Alloy vs 2024 Transition Relay Carbon
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Transition Relay Carbon
- Frame stack
- +25 mm
- Higher front end
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- +72 mm
- Longer: steadier at speed
- Head angle
- n/a
- One of the bikes has no number for this
- Chainstays
- +6 mm
- Longer: more planted
The two frames
Only the Transition Sentinel Alloy is drawn. The Transition Relay Carbon numbers we have for size XL are missing the reach, head angle and seat angle.
Geometry side by side
| Measurement | Transition Sentinel Alloy M | Transition Relay Carbon XL | Difference |
|---|---|---|---|
| Reach | 455 | not listed | |
| Stack | 621 | 646 | +25 mm |
| Head tube angle | 64.0 | not listed | |
| Seat tube angle | 73.0 | not listed | |
| Effective top tube | 577 | not listed | |
| Chainstay length | 442 | 448 | +6 mm |
| Wheelbase | 1237 | 1309 | +72 mm |
| BB drop | 25 | 25 | ±0 mm |
| Standover | 690 | not listed | |
| Seat tube length | 390 | 460 | +70 mm |
| Head tube length | 110 | 135 | +25 mm |
| BB height | not listed | 350 |
Differences are the Transition Relay Carbon minus the Transition Sentinel Alloy. Full charts: 2026 Transition Sentinel Alloy, 2024 Transition Relay Carbon.
Where each sits in its class
Transition Sentinel AlloyTransition Relay Carbon
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
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 | Transition Sentinel AlloyAlloy Eagle 70 | Transition Relay CarbonCarbon Eagle 90 |
|---|---|---|
| Frame | Transition Sentinel | Transition Relay |
| Fork | RockShox Psylo | RockShox Lyrik Select+ |
| Rear shock | RockShox Super Deluxe Base | RockShox Super Deluxe Select+ |
| Shifter | SRAM Eagle 70 Transmission | SRAM Eagle 90 Transmission |
| Derailleur | SRAM Eagle 70 Transmission | SRAM Eagle 90 Transmission |
| Cassette | SRAM Eagle 70 Transmission | SRAM GX Eagle Transmission |
| Chain | SRAM Eagle 70 Transmission | SRAM GX Eagle Transmission |
| Crankset | SRAM Eagle 70 Transmission | Race Face Aeffect ETOR |
| Chainring | SRAM Eagle 70 Transmission | SRAM XX |
| Wheelset | WTB ST | DT Swiss E 1900 Spline 30 |
| Tire | Maxxis Assegai, Maxxis Minion DHR II DD | Maxxis Assegai, Maxxis Minion DHR II |
| Brake | SRAM Maven Base | SRAM Maven |
| Rotor | SRAM CenterLine | SRAM Centerline |
| Handlebar | Race Face Chester | ANVL Mandrel |
| Stem | Race Face Aeffect | ANVL Swage |
| Grips | ODI Elite Flow | ODI Elite Flow |
| Headset | FSA No 57E | FSA No.55R |
| Dropper post | SDG Tellis Dropper | OneUp Components dropper post |
| Saddle | SDG Bel Air 3 | SDG Bel Air 3 |
| Motor | not listed | Fazua Ride 60 |
| Battery | not listed | Fazua Energy 430 |
| Hub | not listed | DT Swiss 370 |
| Rim | not listed | DT Swiss E 1900 |
| Seatpost | not listed | OneUp Components Dropper |
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