Centurion Backfire: suspension setup & specs
The Centurion Backfire is an e-hardtail with 120 mm of fork travel. It is powered by Bosch Performance Line CX. Here you will find all 2 current builds with fork, plus matching SAG and tyre pressure starting values.
Calculate the setup for your Centurion Backfire →
All builds
Fork, motor, weight and price according to the manufacturer. Wheel size: 29.
| Build | Fork | Motor | Weight | RRP | Calculator |
|---|---|---|---|---|---|
| R1000 | SR Suntour XCR34X-BOOST Air (120 mm) | Bosch Performance Line CX 800 Wh | – | €4,049 | Setup → |
| R2000 | FOX AWL Sport eMTB+ (120 mm) | Bosch Performance Line CX 800 Wh | – | €4,849 | Setup → |
How it compares
120 mm at the fork almost exactly matches the 120 mm median of the 27 bikes in the “e-hardtail” category in our database. Among Centurion’s e-mountain bikes, the Centurion Backfire has the shortest fork travel. Centurion builds the frame from aluminium.
The Centurion Backfire is not a budget bike: even the R1000 build costs €4,049, while the category median is €3,150. The top build, R2000, costs €4,849. The fork line-up ranges from the SR Suntour XCR34X-BOOST Air to the FOX AWL Sport eMTB+. It is powered by Bosch Performance Line CX with a 800 Wh battery.
Setup notes for this spec
- Fork (FOX AWL Sport eMTB+): air goes in through the valve on top of the left leg. After every change, compress the fork firmly a few times before measuring SAG.
- Rebound: turn the red FOX adjuster fully closed first and count clicks from there – that way you can note settings and restore them later.
- e-MTB: the extra weight mainly affects tyre pressure, which is why the table below already includes a surcharge. SAG is measured just as on a bike without a motor.
- Hardtail: only the fork needs setting up. With no rear suspension, rear tyre pressure is the key adjustment for comfort and grip.
Target SAG for the Centurion Backfire
SAG is the share of travel your weight already uses in the riding position. The table gives it straight in millimetres – read the O-ring on the stanchion and adjust the air pressure until it matches. Any figures from Centurion take priority.
120 mm fork (all builds)
| Riding style | Fork SAG |
|---|---|
| XC / touring | 17 % = 20 mm |
| Trail | 20 % = 24 mm |
| Enduro / rough | 22 % = 26 mm |
| Bike park | 20 % = 24 mm |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
Basis: 2.40″ 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: SCHWALBE Wicked Will 29x2.4" / SCHWALBE Wicked Will 29x2.4".
| 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
You will find a suitable starting pressure on the sticker on the fork stanchion or in the suspension manufacturers’ setup charts. Our calculator gives you a starting value including rebound for your weight and riding style. What matters afterwards is the measured SAG from the table above.