2026 Commencal META POWER SX SIGNATURE vs 2026 Rocky Mountain Altitude Powerplay Alloy
The L is the Rocky Mountain Altitude Powerplay Alloy size closest to your M Commencal META POWER SX SIGNATURE. 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 Rocky Mountain Altitude Powerplay Alloy
Compared with the Commencal META POWER SX SIGNATURE in M, the Rocky Mountain Altitude Powerplay Alloy in L places the top of the head tube at about the same height and 15 mm further forward, relative to the bottom bracket. Its wheelbase is 5 mm longer, which can contribute to stability at speed.
- Frame stack
- −3 mm
- About the same height
- Frame reach
- +15 mm
- Longer frame reach
- Wheelbase
- +5 mm
- Longer: steadier at speed
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Commencal META POWER SX SIGNATURE is drawn. The Rocky Mountain Altitude Powerplay Alloy numbers we have for size L are missing the chainstay length.
Geometry side by side
| Measurement | Commencal META POWER SX SIGNATURE M | Rocky Mountain Altitude Powerplay Alloy L | Difference |
|---|---|---|---|
| Reach | 460 mm | 475 | +15 mm |
| Stack | 640.6 mm | 638 | −3 mm |
| Head tube angle | 64° | 63.5 | −0.5° |
| Seat tube angle | 74.2° | 75.5 | +1.3° |
| Effective top tube | 602 mm | 639 | +37 mm |
| Chainstay length | 445 mm | not listed | |
| Wheelbase | 1259.1 mm | 1264 | +5 mm |
| BB drop | 4 mm | 7 | +3 mm |
| Seat tube length | 420 mm | 445 | +25 mm |
| Fork length | 588 mm | not listed | |
| Head tube length | 125 mm | 110 | −15 mm |
| Standover | not listed | 831 |
Differences are the Rocky Mountain Altitude Powerplay Alloy minus the Commencal META POWER SX SIGNATURE. Full charts: 2026 Commencal META POWER SX SIGNATURE, 2026 Rocky Mountain Altitude Powerplay Alloy.
Where each sits in its class
Commencal META POWER SX SIGNATURERocky Mountain Altitude Powerplay Alloy
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 | Commencal META POWER SX SIGNATURE400 SIGNATURE EAGLE 90 | Rocky Mountain Altitude Powerplay AlloyAlloy 30 |
|---|---|---|
| Frame | Commencal META POWER SX 400 | Rocky Mountain Altitude Powerplay |
| Fork | Fox 38 Factory E-Bike | RockShox Domain RC Gold |
| Rear shock | Fox Float X Factory | Marzocchi Bomber Air |
| Shifter | SRAM Eagle 90 Transmission | Shimano Deore |
| Derailleur | SRAM Eagle 90 Transmission | Shimano Deore XT Di2 |
| Cassette | SRAM GX Eagle Transmission | Shimano Deore XT |
| Chain | SRAM GX Eagle Transmission | Shimano Deore M6100 |
| Crankset | e*thirteen Helix Core E*Spec | Race Face Ride Cinch |
| Motor | Bosch Performance Line SX | Rocky Mountain Dyname S4 |
| Battery | Bosch PowerTube 400 | not listed |
| Tire | Maxxis Minion DHRII 27.5, Maxxis Assegai 29 | Maxxis Minion Assegai, Maxxis Minion DHR II |
| Hub | DT Swiss 350 | Shimano TC500 |
| Rim | DT Swiss HFR1700 | Rocky Mountain TR30 |
| Brake | TRP DH-R EVO Pro | Tektro HD-M535 |
| Grips | ODI Longneck 2.1 | ODI Elite Pro Lock-On |
| Headset | Acros ZS56/ZS66 | FSA ZS56/66 Reach Adjust |
| Dropper post | Fox Transfer Factory | TranzX +RAD1.0 |
| Saddle | fizik Terra Aidon X5 | WTB Volt |
| Bottom bracket | not listed | Race Face BSA 73 |
| Rotor | not listed | Shimano SM-RT64 |
| Handlebar | not listed | Rocky Mountain AM |
| Stem | not listed | Rocky Mountain 35 AM |
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