Vitus E-Sommet: suspension setup & specs
The Vitus E-Sommet is an e-enduro bike with 170 mm of fork travel and 167 mm at the rear. It is powered by Shimano EP600 or Shimano STEPS EP801. 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 Vitus E-Sommet →
All builds
Fork, shock, shock size (eye-to-eye length × stroke) and rear travel, motor, weight and price according to the manufacturer. Wheel size: MX.
| Build | Fork | Shock | Shock size | Rear travel | Motor | Weight | RRP | Calculator |
|---|---|---|---|---|---|---|---|---|
| 297 VR | RockShox Domain R (170 mm) | RockShox Super Deluxe Select R | 205x65 | 167 mm | Shimano EP600 | – | – | Setup → |
| 297 VRS | RockShox Zeb Select (170 mm) | RockShox Super Deluxe Select R | 205x65 | 167 mm | Shimano STEPS EP801 | – | – | Setup → |
| 297 VRX | RockShox Zeb Ultimate (170 mm) | RockShox Super Deluxe Ultimate RC2T | 205x65 | 167 mm | Shimano STEPS EP801 | – | – | Setup → |
How it compares
170 mm at the fork almost exactly matches the 170 mm median of the 56 bikes in the “e-enduro bike” category in our database. The fork has 3 mm more travel than the rear end with 167 mm – a common layout that takes load off the front on steep terrain. Among Vitus’s e-mountain bikes, the Vitus E-Sommet is the model with the most fork travel. Vitus builds the frame from aluminium.
Vitus uses RockShox suspension throughout. In total, 3 different forks are used, from the RockShox Domain R to the RockShox Zeb Ultimate. Drive comes from Shimano EP600 or Shimano STEPS EP801.
Setup notes for this spec
- Air fork (RockShox Domain R): 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 RockShox suspension the rebound adjuster is red. Always count clicks from fully closed (clockwise to the stop) so you can return to any setting.
- Air shock (RockShox Super Deluxe Select R): measure SAG in your riding position, ideally with a helper holding the bike. Cycle the shock a few times after every pressure change.
- 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 Vitus E-Sommet
Instead of percentages, this table gives SAG directly in millimetres, measurable with the O-ring on the stanchion and on the shock shaft. Change the pressure step by step until you reach the value; if Vitus gives its own target SAG, use that.
170 mm fork, 65.0 mm shock stroke (all builds)
| Riding style | Fork SAG | Shock SAG |
|---|---|---|
| XC / touring | 17 % = 29 mm | 24 % = 15.6 mm on the shock shaft |
| Trail | 20 % = 34 mm | 28 % = 18.2 mm on the shock shaft |
| Enduro / rough | 22 % = 37 mm | 30 % = 19.5 mm on the shock shaft |
| Bike park | 20 % = 34 mm | 27 % = 17.6 mm on the shock shaft |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
Basis: 2.50″ tyre width, tubeless, trail casing, including the e-MTB surcharge. If you run tubes, add about 0.2 bar (2.9 psi); with an insert, about 0.1 bar (1.5 psi) less is enough. Stock tyres: Maxxis Assegai / Maxxis High Roller II.
| 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.