Rocky Mountain Altitude Powerplay: suspension setup & specs
The Rocky Mountain Altitude Powerplay is an e-enduro bike with 170 mm of fork travel and 160 mm at the rear. It is powered by Rocky Mountain Dyname 4.0. Here you will find all 3 current builds with fork, shock and shock size, plus matching SAG and tyre pressure starting values.
Calculate the setup for your Rocky Mountain Altitude Powerplay →
All builds
Fork, shock, shock size (eye-to-eye length × stroke) and rear travel, motor, weight and price according to the manufacturer. Wheel size: 29.
| Build | Fork | Shock | Shock size | Rear travel | Motor | Weight | RRP | Calculator |
|---|---|---|---|---|---|---|---|---|
| Alloy 30 | RockShox Domain Gold RC (170 mm) | Marzocchi Bomber Air | – | 160 mm | Rocky Mountain Dyname 4.0 720 Wh | – | – | Setup → |
| Alloy 50 | RockShox Zeb Select RC (170 mm) | FOX Float X Performance | – | 160 mm | Rocky Mountain Dyname 4.0 720 Wh | – | – | Setup → |
| Carbon 70 | FOX 38 Float EVOL GRIP X2 Factory Series (170 mm) | FOX Float X2 Factory | – | 160 mm | Rocky Mountain Dyname 4.0 720 Wh | – | – | Setup → |
How it compares
On travel, the Rocky Mountain Altitude Powerplay is right where the “e-enduro bike” category usually is: 170 mm up front against a median of 170 mm from 56 bikes. The rear offers 160 mm, 10 mm less than the front. The frame is made of carbon.
For suspension, Rocky Mountain combines components from FOX, Marzocchi and RockShox. In total, 3 different forks are used, from the RockShox Domain Gold RC to the FOX 38 Float EVOL GRIP X2 Factory Series. It is powered by Rocky Mountain Dyname 4.0 with a 720 Wh battery.
Setup notes for this spec
- Air fork (RockShox Domain Gold RC): the air valve is on top of the left leg under a cap. Change pressure in small steps (about 5 psi (0.34 bar)) and cycle the fork a few times afterwards so the air chambers can equalise.
- Rebound: on FOX, Marzocchi and RockShox suspension the rebound adjuster is red. Always count clicks from fully closed (clockwise to the stop) so you can return to any setting.
- Shock (Marzocchi Bomber Air): get on the bike in your normal riding position, step off carefully and read the O-ring. Always cycle the shock a few times after pumping.
- e-MTB: because of the extra weight, start with slightly more tyre pressure – the surcharge is already built into the table below.
Target SAG for the Rocky Mountain Altitude Powerplay
The table converts the recommended SAG percentages into millimetres, so you can check them with the O-ring directly on the stanchion and on the shock shaft. Adjust the air pressure until the value is right. If Rocky Mountain specifies its own target SAG for your model, that takes priority.
170 mm fork (all builds)
| Riding style | Fork SAG |
|---|---|
| XC / touring | 17 % = 29 mm |
| Trail | 20 % = 34 mm |
| Enduro / rough | 22 % = 37 mm |
| Bike park | 20 % = 34 mm |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
The values apply to 2.50″ wide tubeless tyres with a trail casing, including the e-MTB surcharge. With an inner tube add about 0.2 bar (2.9 psi), with an insert take off about 0.1 bar (1.5 psi). Stock tyres: F: Maxxis Assegai 2.5 WT 3C MaxxGrip DD Tubeless Ready | R: Maxxis Minion DHR II 2.4 WT 3C MaxxTerra DD Tubeless Ready; F: Maxxis Minion Assegai 2.5 WT EXO Tubeless Ready | R: Maxxis Minion DHR II 2.4 WT EXO Tubeless Ready | Tubeless Set Up | Sealant Incl.
| Ready-to-ride weight | Front | Rear |
|---|---|---|
| 60 kg | 1.48 bar (21 psi) | 1.68 bar (24 psi) |
| 70 kg | 1.60 bar (23 psi) | 1.80 bar (26 psi) |
| 80 kg | 1.72 bar (25 psi) | 1.92 bar (28 psi) |
| 90 kg | 1.84 bar (27 psi) | 2.04 bar (30 psi) |
| 100 kg | 1.96 bar (28 psi) | 2.16 bar (31 psi) |
| 110 kg | 2.08 bar (30 psi) | 2.28 bar (33 psi) |
| 120 kg | 2.20 bar (32 psi) | 2.40 bar (35 psi) |
Air pressure in the fork and shock
You will find a guide value for air pressure on the fork sticker (or on the shock) or in the suspension makers’ charts. Our calculator also takes riding style and rebound into account. In the end, measured SAG is what counts.