Centurion Backfire Fit: suspension setup & specs
The Centurion Backfire Fit 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 Fit →
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
On travel, the Centurion Backfire Fit is right where the “e-hardtail” category usually is: 120 mm up front against a median of 120 mm from 27 bikes. Among Centurion’s e-mountain bikes, the Centurion Backfire Fit has the shortest fork travel. The frame is made of aluminium.
The Centurion Backfire Fit 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. In total, 2 different forks are used, 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
- Air fork (FOX AWL Sport eMTB+): 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 suspension the rebound adjuster is red. Always count clicks from fully closed (clockwise to the stop) so you can return to any setting.
- 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 Fit
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
For 2.35″ wide tyres, tubeless with a trail casing, including the e-MTB surcharge. With an inner tube about 0.2 bar (2.9 psi) more, with an insert about 0.1 bar (1.5 psi) less. Stock tyres: SCHWALBE Smart Sam 29x2.35" / SCHWALBE Smart Sam 29x2.35".
| 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.