2021 Rocky Mountain Altitude Carbon vs 2021 Giant Reign Advanced Pro
The S is the Giant Reign Advanced Pro size closest to your 29 S Rocky Mountain Altitude Carbon. 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 Giant Reign Advanced Pro
Compared with the Rocky Mountain Altitude Carbon in 29 S, the Giant Reign Advanced Pro in S places the top of the head tube 21 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 19 mm longer, which can contribute to stability at speed.
- Frame stack
- +21 mm
- Higher front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +19 mm
- Longer: steadier at speed
- Head angle
- +0.2°
- 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 Rocky Mountain Altitude Carbon numbers we have for size 29 S are missing the chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | Rocky Mountain Altitude Carbon 29 S | Giant Reign Advanced Pro S | Difference |
|---|---|---|---|
| Reach | 423 | 423 | ±0 mm |
| Stack | 601 | 622 | +21 mm |
| Head tube angle | 64.4 | 64.6 | +0.2° |
| Seat tube angle | 75.4 | 76.4 | +1.0° |
| Wheelbase | 1172 | 1191 | +19 mm |
| BB drop | 20 | 27 | +7 mm |
| Standover | 767 | 757 | −10 mm |
| Effective top tube | not listed | 574 | |
| Chainstay length | not listed | 439 | |
| Seat tube length | not listed | 431 | |
| Head tube length | not listed | 100 |
Differences are the Giant Reign Advanced Pro minus the Rocky Mountain Altitude Carbon. Full charts: 2021 Rocky Mountain Altitude Carbon, 2021 Giant Reign Advanced Pro.
Where each sits in its class
Rocky Mountain Altitude CarbonGiant Reign Advanced Pro
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 | Rocky Mountain Altitude CarbonCarbon 50 | Giant Reign Advanced ProAdvanced Pro 0 |
|---|---|---|
| Frame | Rocky Mountain SMOOTHWALL™ Carbon | Giant Reign |
| Fork | Fox 36 Performance | Fox 38 Factory |
| Rear shock | Fox Float Performance | Fox DHX2 Factory |
| Shifter | Shimano SLX XT | Shimano XTR M9100 |
| Derailleur | Shimano XT | Shimano XTR M9100 |
| Cassette | Shimano SLX 10-51T | Shimano XTR M9100 |
| Chain | Shimano SLX M7100 | Shimano XTR |
| Crankset | Race Face Aeffect Cinch | Shimano XTR M9100 |
| Bottom bracket | Shimano SM-BBMT500 | not listed |
| Wheelset | Race Face AR30 Mullet | Giant TRX 0 |
| Tire | Maxxis Assegai, Maxxis Minion DHR II DD | Maxxis Assegai, Maxxis Minion DHR II DD |
| Brake | Shimano XT Trail 4 Piston | Shimano XTR M9120 |
| Rotor | Shimano RT-66 | Shimano XTR |
| Handlebar | Rocky Mountain AM | Giant Contact SLR |
| Stem | Rocky Mountain AM | Giant Contact SL |
| Grips | Ergon GE10 EVO | not listed |
| Headset | FSA Orbit 57E | not listed |
| Dropper post | Race Face Aeffect R | not listed |
| Saddle | WTB Volt Race | Giant Romero SL |
| Seatpost | not listed | Fox Transfer Factory |
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