2025 Giant Reign Advanced Pro 29 vs 2024 Specialized Enduro Expert
The Specialized Enduro Expert size closest to your M is the S3. Compare the S3 instead
What changes on the Specialized Enduro Expert
Compared with the Giant Reign Advanced Pro 29 in M, the Specialized Enduro Expert in S4 places the top of the head tube 7 mm higher and 36 mm further forward, relative to the bottom bracket. Its wheelbase is 54 mm longer, which can contribute to stability at speed.
- Frame stack
- +7 mm
- Higher front end
- Frame reach
- +36 mm
- Longer frame reach
- Wheelbase
- +54 mm
- Longer: steadier at speed
- Head angle
- −0.7°
- Slacker: calmer steering
- Chainstays
- +3 mm
- Longer: more planted
The two frames
Giant Reign Advanced Pro 29, MSpecialized Enduro Expert, S4Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Giant Reign Advanced Pro 29 M | Specialized Enduro Expert S4 | Difference |
|---|---|---|---|
| Reach | 451 | 487mm | +36 mm |
| Stack | 622 | 629mm | +7 mm |
| Head tube angle | 64.6 | 63.9° | −0.7° |
| Seat tube angle | 76.4 | 76° | −0.4° |
| Chainstay length | 439 | 442mm | +3 mm |
| Wheelbase | 1220 | 1274mm | +54 mm |
| Standover | 759 | not listed | |
| Seat tube length | 431 | 440mm | +9 mm |
| Head tube length | 100 | 110mm | +10 mm |
Differences are the Specialized Enduro Expert minus the Giant Reign Advanced Pro 29. Full charts: 2025 Giant Reign Advanced Pro 29, 2024 Specialized Enduro Expert.
Where each sits in its class
Giant Reign Advanced Pro 29Specialized Enduro Expert
Each bike is ranked against the other enduro 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 | Giant Reign Advanced Pro 29Advanced Pro 29 1 | Specialized Enduro ExpertExpert |
|---|---|---|
| Frame | Giant Reign | Specialized Enduro |
| Fork | Fox 38 Factory | RockShox Zeb Select+ |
| Rear shock | Fox Float X2 Factory | RockShox Super Deluxe |
| Shifter | SRAM GX Eagle AXS Rocker | SRAM GX Eagle AXS Controller |
| Derailleur | SRAM GX Eagle | SRAM GX Eagle AXS |
| Cassette | SRAM GX Eagle | SRAM GX Eagle |
| Chain | SRAM GX Eagle | SRAM GX Eagle |
| Crankset | TruVativ Descendent | SRAM GX Eagle |
| Bottom bracket | SRAM DUB GX | SRAM DUB |
| Wheelset | Giant TRX 2 | Roval Traverse 29 |
| Tire | Maxxis Assegai, Maxxis Minion DHR II DD | Specialized Butcher |
| Brake | Shimano SLX M7120 | SRAM Code RS |
| Rotor | Shimano RT-66 | SRAM Code RS |
| Handlebar | Giant Contact SLR | Specialized Trail 7050 alloy |
| Stem | Giant Contact SL | Specialized Alloy Trail |
| Grips | Giant Tactal Pro Single | Specialized Deity Grips |
| Dropper post | TranzX dropper internal routing | not listed |
| Saddle | Giant Romero SL | Specialized Bridge |
| Chainring | not listed | SRAM Eagle DUB GX |
| Hub | not listed | Roval DT Swiss 370 |
| Rim | not listed | Roval Traverse 29 |
| Seatpost | not listed | Specialized OneUp |
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