Bulls Black Adder: suspension setup & specs
The Bulls Black Adder is a cross-country hardtail with 100 mm of fork travel. This page lists the 3 current builds with fork and gives matching starting values for SAG and tyre pressure.
Calculate the setup for your Bulls Black Adder →
All builds
Fork, weight and price according to the manufacturer. Wheel size: 29.
| Build | Fork | Weight | RRP | Calculator |
|---|---|---|---|---|
| Black Adder | RockShox Reba RL R (100 mm) | 11.3 kg | €2,599 | Setup → |
| RS | RockShox SID SL Select+ (100 mm) | 10.3 kg | €3,599 | Setup → |
| Team | RockShox SID SL Ultimate (100 mm) | 9.2 kg | €5,599 | Setup → |
How it compares
On travel, the Bulls Black Adder is right where the “cross-country hardtail” category usually is: 100 mm up front against a median of 100 mm from 46 bikes. Of Bulls’s mountain bikes, the Bulls Black Adder offers the least travel up front. The frame is made of carbon.
The lightest build, Team, weighs 9.2 kg according to Bulls – about 0.8 kg less than the category median (10.0 kg across 16 bikes with a stated weight). There are 2.1 kg between the lightest and the heaviest build. With a starting price of €2,599 (Black Adder), the Bulls Black Adder is above the category median (€1,450). For the Team build, Bulls asks €5,599. Every build uses a RockShox fork. The fork line-up ranges from the RockShox Reba RL R to the RockShox SID SL Ultimate. Bulls specifies a maximum system weight of 125 kg. Subtracting roughly 12 kg for the bike leaves about 113 kg for rider, clothing, backpack and luggage.
Setup notes for this spec
- Air fork (RockShox Reba RL R): 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: turn the red RockShox adjuster fully closed first and count clicks from there – that way you can note settings and restore them later.
- Hardtail: without rear suspension, rear tyre pressure largely decides comfort and traction – it is worth testing in 0.1 bar (1.5 psi) steps.
Target SAG for the Bulls Black Adder
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.
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 2.40″ 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: SCHWALBE Racing Ray / Racing Ralph Evo Super Race TLE.
| 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.