🚵 Fox Float DPS PSI Calculator
Calculate the ideal air pressure for your Fox Float DPS rear shock based on rider weight, discipline, and sag target.
| Rider + Gear Weight | XC (20–25% Sag) | Trail (25–30% Sag) | Enduro (30–35% Sag) | DH (35–40% Sag) |
|---|---|---|---|---|
| 100–120 lbs (45–54 kg) | 170–185 psi | 145–165 psi | 120–140 psi | 105–125 psi |
| 121–140 lbs (55–63 kg) | 185–200 psi | 160–180 psi | 140–158 psi | 120–140 psi |
| 141–160 lbs (64–72 kg) | 200–220 psi | 178–198 psi | 155–175 psi | 138–158 psi |
| 161–180 lbs (73–81 kg) | 218–240 psi | 195–218 psi | 172–194 psi | 155–175 psi |
| 181–200 lbs (82–90 kg) | 235–260 psi | 212–238 psi | 190–215 psi | 172–195 psi |
| 201–220 lbs (91–99 kg) | 255–278 psi | 228–255 psi | 207–232 psi | 188–213 psi |
| 221–250 lbs (100–113 kg) | 270–300 psi | 245–275 psi | 222–252 psi | 205–232 psi |
| Shock Stroke | 25% Sag (mm) | 28% Sag (mm) | 30% Sag (mm) | 33% Sag (mm) |
|---|---|---|---|---|
| 44mm | 11mm | 12.3mm | 13.2mm | 14.5mm |
| 51mm | 12.8mm | 14.3mm | 15.3mm | 16.8mm |
| 55mm | 13.8mm | 15.4mm | 16.5mm | 18.2mm |
| 57mm | 14.3mm | 16.0mm | 17.1mm | 18.8mm |
| 62mm | 15.5mm | 17.4mm | 18.6mm | 20.5mm |
| 65mm | 16.3mm | 18.2mm | 19.5mm | 21.5mm |
| Tokens | Air Volume | Ramp-Up | PSI Adjustment | Best For |
|---|---|---|---|---|
| 0 Tokens | Full Volume | Most Progressive | −10 to −15 psi | Heavy riders, DH/Park |
| 1 Token | Reduced | Progressive | Standard (baseline) | Trail, Enduro |
| 2 Tokens | More Reduced | Less Progressive | +8 to +12 psi | XC, light riders |
| 3 Tokens | Minimum | Most Linear | +15 to +20 psi | XC Race, very light riders |
Fox ranks between the most known makers of shock systems for mountain biking. The company offers shocks fit for any kind of riding, from cross country through to downhill. The range of Fox Float models covers many uses and knowing the differences between them helps to choose the right rear shock.
The Fox Float SL is meant for riders that want to improve their XC riding to a higher level. It keeps the three-position switch that was on the older Float DPS. Even so, although it weighs little, it lost some features because of that lightweight build.
Which Fox Float Rear Shock Should You Choose
The newest Fox Float sits between the SL and the bigger X. One describes it more as a small X than an updated DPS. Fox equipped it with a two-position compression switch instead of three (only open or closed). The middle position of the blue lever disappeared entirely.
Compared to the SL, it has a stronger bottom-out bumper and a bigger air chamber. That larger air chamber helps to give better feeling for small bumps and suport in the centre of the travel, although it adds a bit of weight. One can set the rebound damping and the air spring rate.
It includes a lightweight single Evol air sleeve that helps it react more quickly. The Factory Series version arrives with Kashima coating, that is smooth and lasts longer. The version compatible with Isolated offers more complete operation and better control of damping, getting closer to the X in function.
The extra space for cargo is sold separately.
Riders that like aggressive style find in the Float X there ideal match. It mixes freedom of tuning with light weight and solid structure. That model replaced the favourite Float DPX2 as the middle air shock from Fox with piggyback.
The Float X got a bigger air chamber for flexible initial travel, which allows you to drop the needed air pressure to around 40 PSI. Also the main piston grew, which opens space for better flow of oil inside. Compared to the X2, the X weighs less, but stays strong in the damping function.
The Performance Elite version matches the Factory, except that it does not have the Kashima finish. One can add a knob for slow rebound to the Performance model, to turn it into Elite.
Lastly, the Float X2 is meant for enduro and downhill riding. It gives comfort like a coil spring feel, together with the lightness of an air spring. The X2 is known for its big skill for setup and damping control.
But older models of X2 suffered from a known problem with the seal, which mixed air with oil in the shock and hurt its normal function. Fox handled refills outside the warranty well. The wholerange of Float gives serious riders a reliable set of options that matches their riding style.
