CUBE Reaction: suspension setup & specs
The CUBE Reaction is a cross-country hardtail with 100 mm of fork travel. Here you will find all 6 current builds with fork, plus matching SAG and tyre pressure starting values.
Calculate the setup for your CUBE Reaction →
All builds
Fork, weight and price according to the manufacturer. Wheel size: 29 / 29 (S: 27.5).
| Build | Fork | Weight | RRP | Calculator |
|---|---|---|---|---|
| C:62 ONE | RockShox Recon Silver RL Air (100 mm) | 12.2 kg | – | Setup → |
| C:62 Pro | RockShox SID SL Base (100 mm) | 10.9 kg | – | Setup → |
| C:62 Race | FOX 32 SC Float Performance (100 mm) | 10.8 kg | – | Setup → |
| C:68X SLX | FOX 32 SC Float Factory GRIP SL (100 mm) | 9.9 kg | – | Setup → |
| Pro | RockShox Recon Silver RL Air (100 mm) | 14.0 kg | – | Setup → |
| SLX | RockShox Recon Silver RL Air (100 mm) | 13.3 kg | – | Setup → |
How it compares
On travel, the CUBE Reaction is right where the “cross-country hardtail” category usually is: 100 mm up front against a median of 100 mm from 46 bikes. Of CUBE’s mountain bikes, the CUBE Reaction offers the least travel up front. Depending on the build, the frame is carbon or aluminium.
9.9 kg for the C:68X SLX build puts the CUBE Reaction mid-pack on weight (median: 10.0 kg). There are 4.1 kg between the lightest and the heaviest build. The fork line-up ranges from the RockShox Recon Silver RL Air to the FOX 32 SC Float Factory GRIP SL.
Setup notes for this spec
- Air fork (RockShox Recon Silver RL Air): 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 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.
- 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
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.
100 mm fork (all builds)
| Riding style | Fork SAG |
|---|---|
| XC / touring | 17 % = 17 mm |
| Trail | 20 % = 20 mm |
| Enduro / rough | 22 % = 22 mm |
| Bike park | 20 % = 20 mm |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
For 2.25″ 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: Schwalbe Racing Ray / Ralph 2.25; Schwalbe Racing Ray / Ralph 2.35.
| Ready-to-ride weight | Front | Rear |
|---|---|---|
| 60 kg | 1.53 bar (22 psi) | 1.73 bar (25 psi) |
| 70 kg | 1.65 bar (24 psi) | 1.85 bar (27 psi) |
| 80 kg | 1.77 bar (26 psi) | 1.97 bar (29 psi) |
| 90 kg | 1.89 bar (27 psi) | 2.09 bar (30 psi) |
| 100 kg | 2.01 bar (29 psi) | 2.21 bar (32 psi) |
| 110 kg | 2.13 bar (31 psi) | 2.33 bar (34 psi) |
| 120 kg | 2.25 bar (33 psi) | 2.45 bar (36 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.