The Rocky Mountain Altitude Powerplay was designed around the Dyname S4 Pro drive system and has everything you need for aggressive e-biking on the trail. From podium finishes at the Enduro World Series to victory at Rampage, the Altitude platform has proven what it’s capable of. Now Rocky Mountain has taken everything that defines the Altitude riding experience and incorporated it into its most advanced e-mtb yet.
Its motor not only delivers plenty of watts, but also up to 100 smiles per minute. The maximum torque falls somewhere between “This is awesome” and “Holy cow—I don’t want to go home.” So go for it: ride down the trail, carve through the turns, and then switch to “Ludicrous” to get back to the top faster than you ever thought possible.
At the heart of the new Rocky Mountain Powerplay line is the brand-new Dyname S4 Pro drive system, which features a number of refinements over the previous generation. The Dyname™ S4 Pro is incredibly powerful and a true frontrunner among electric bike motors. Rocky Mountain has designed the power curve in the software so that the 108 Nm is delivered smoothly, allowing you, the rider, to use the pedals gently through tight turns or really open it up on a rough, powerful section of the trail.
By developing a torque sensor that precisely measures chain tension, Rocky Mountain has created a mechanical solution for what is typically an additional digital process that causes greater delay in power delivery, helping them reduce that delay and achieve the desired riding feel.
| Product Name: | Rocky Mountain ALTITUDE POWERPLAY A50 - 29" Electric Mountainbike - 2026 - red / purple |
| Manufacturer: | Rocky Mountain |
| Item Code: | RMO775741 |
| activity: | Cycling |
| gender: | men |
| material: | Aluminium |
| usage bikesport: | E-Bike, MTB, Enduro |
| hubs: | Novatec D791SB Sealed Boost / Novatec E-MTB Pro Boost |
| spokes: | DT Swiss Elemental 2.0 |
| rims: | WTB ST i30 TOUGH TCS 2.0 | 32H |
| chain: | SRAM Eagle 70 Transmission |
| cassette: | SRAM XS-1270 Eagle Transmission |
| shifter: | SRAM Eagle 70 Transmission Single Click |
| rear derailleur: | SRAM Eagle 90 Transmission |
| bottom bracket: | RaceFace BSA 73 |
| chainring ratio: | 34 |
| crankset: | RaceFace Aeffect Cinch |
| brakes: | SRAM Maven Stealth |
| seat post model: | Tranz X +RAD2.0 Adjustable Dropper |
| saddle: | WTB Solano Fusion Form 142 |
| handle bar: | Rocky Mountain AM | 780mm Width | 38mm Rise | 9° Backsweep | 5° Upsweep | 35 Clamp |
| stem: | Rocky Mountain 35 AM | 0° Rise |
| fork: | RockShox Zeb Select RC |
| headset: | FSA ZS56/66 Reach Adjus |
| frame: | FORM™ Alloy | LC2R Suspension | RIDE-4™ Adjustable Geometry |
| Shifting System (Manufacturer): | SRAM |
| gear ratio: | 10-52 |
| Battery capacity: | 720Wh |
| Shifting Type: | Chain - Mechanical |
| E-Bike battery: | Removable Integrated Li-Ion |
| Drive Unit Manufacturer: | Rocky Mountain Dyname |
| Motor : | Mid-Mounted Motor, Full Assist |
| brake type: | Disc Brake |
| wheel size: | 29" (622mm) |
| bike special accessories: | Rocky Mountain Powerplay FAST Charger |
| grips: | ODI Elite Pro Lock On |
| shock: | Fox Float X Performance | 230x65mm |
| seatpost: | Dropper post |
| Rear Triangle: | Suspended |
| travel fork: | 170mm |
| tires: | Maxxis Assegai 2.5" WT 3C MaxxGrip DD / Maxxis Minion DHR II 2.4" WT 3C MaxxTerra DD |
| max tire width: | 64mm |
| travel frame: | 160mm |
| brake actuation: | Hydraulic |
| Model year: | 2026 |
| Color: | Red, Purple |
| fork construction: | Classic Suspension Fork |
| manufacturer item code: | B0505 |
| cable routing: | internal |
| Display / Control Unit: | Rocky Mountain Jumbotron |
| Drive Unit Model: | Dyname S4 Pro |
| Torque: | 108Nm |
| Product Series: | Rocky Mountain - Altitude |
| Number of Gears: | 1 x 12 |
| Frame Shape: | Diamond |
| GTINs: | 770416013856, 770416013818 |
| Manufacturer page: | https://bikes.com/ |