Bulls Copperhead: suspension setup & specs
The Bulls Copperhead is a cross-country hardtail with 110 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 Bulls Copperhead →
All builds
Fork, weight and price according to the manufacturer. Wheel size: 29.
| Build | Fork | Weight | RRP | Calculator |
|---|---|---|---|---|
| 2 | SR Suntour XCM32 NLO (110 mm) | 15.4 kg | €1,399 | Setup → |
| 3 | RockShox Judy Gold RL-R (110 mm) | 13.3 kg | €1,399 | Setup → |
How it compares
Up front the Bulls Copperhead runs 110 mm – 10 mm more than the 100 mm median we calculated from 46 bikes in the “cross-country hardtail” category. On travel, it slots in between the Bulls Sharptail and the Bulls Wild Edge in the Bulls range. Bulls builds the frame from aluminium.
Bulls quotes 13.3 kg for the 3 build; that is 3.3 kg more than the 10.0 kg median of 16 comparable bikes. Within the range, weight varies by 2.1 kg. The starting price of €1,399 (2) is roughly in line with the category median (€1,450). In total, 2 different forks are used, from the SR Suntour XCM32 NLO to the RockShox Judy Gold RL-R. Bulls specifies a maximum system weight of 125 kg. Subtracting roughly 16 kg for the bike leaves about 109 kg for rider, clothing, backpack and luggage.
Setup notes for this spec
- Fork (RockShox Judy Gold RL-R): 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 Bulls Copperhead
Instead of percentages, this table gives SAG directly in millimetres, measurable with the O-ring on the stanchion. Change the pressure step by step until you reach the value; if Bulls gives its own target SAG, use that.
110 mm fork (all builds)
| Riding style | Fork SAG |
|---|---|
| XC / touring | 17 % = 19 mm |
| Trail | 20 % = 22 mm |
| Enduro / rough | 22 % = 24 mm |
| Bike park | 20 % = 22 mm |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
Basis: 2.25″ tyre width, tubeless, trail casing. 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 Racing Ray / Racing Ralph Performance; SCHWALBE Smart Sam K-Guard.
| 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.