CUBE Reaction TM: suspension setup & specs
The CUBE Reaction TM is a trail hardtail with 140 mm of fork travel. Below you will find all 2 current builds with fork, plus SAG values in millimetres and a tyre pressure table.
Calculate the setup for your CUBE Reaction TM →
All builds
Fork, weight and price according to the manufacturer. Wheel size: 29 (S: 27.5).
| Build | Fork | Weight | RRP | Calculator |
|---|---|---|---|---|
| ONE | SR Suntour XCR36 2CR Air (140 mm) | 16.1 kg | – | Setup → |
| Pro | RockShox Psylo Silver RC Air (140 mm) | 15.5 kg | – | Setup → |
How it compares
With 140 mm at the fork, the CUBE Reaction TM sits above average: across the 17 bikes in the “trail hardtail” category in our database, the median is 130 mm. On travel, it slots in between the CUBE Reaction and the CUBE Stereo in the CUBE range. CUBE builds the frame from aluminium.
At a minimum of 15.5 kg (Pro build), the CUBE Reaction TM is heavier than its category median of 13.2 kg – 2.3 kg more. Within the range, weight varies by 0.6 kg. In total, 2 different forks are used, from the SR Suntour XCR36 2CR Air to the RockShox Psylo Silver RC Air.
Setup notes for this spec
- Fork (RockShox Psylo Silver RC Air): 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 RockShox adjuster fully closed first and count clicks from there – that way you can note settings and restore them later.
- 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 CUBE Reaction TM
The table converts the recommended SAG percentages into millimetres, so you can check them with the O-ring directly on the stanchion. Adjust the air pressure until the value is right. If CUBE specifies its own target SAG for your model, that takes priority.
140 mm fork (all builds)
| Riding style | Fork SAG |
|---|---|
| XC / touring | 17 % = 24 mm |
| Trail | 20 % = 28 mm |
| Enduro / rough | 22 % = 31 mm |
| Bike park | 20 % = 28 mm |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
For 2.40″ wide tyres, tubeless with a trail casing. 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: Continental Kryptotal Enduro Soft 2.4; Schwalbe Magic Mary / Tacky Chan 2.4.
| Ready-to-ride weight | Front | Rear |
|---|---|---|
| 60 kg | 1.43 bar (21 psi) | 1.63 bar (24 psi) |
| 70 kg | 1.55 bar (22 psi) | 1.75 bar (25 psi) |
| 80 kg | 1.67 bar (24 psi) | 1.87 bar (27 psi) |
| 90 kg | 1.79 bar (26 psi) | 1.99 bar (29 psi) |
| 100 kg | 1.91 bar (28 psi) | 2.11 bar (31 psi) |
| 110 kg | 2.03 bar (29 psi) | 2.23 bar (32 psi) |
| 120 kg | 2.15 bar (31 psi) | 2.35 bar (34 psi) |
Air pressure in the fork
The sticker on the fork and the manufacturers’ setup charts give you a first pressure. Our calculator is more precise and suggests rebound too – always check the result via SAG.