FOX Float X2 - Yalla! Setup Guide

Basics

Here are a few basics about sag and the parameters that determine the air pressure you need.

  • The amount of air pressure you use in your Float X2 shock defines the amount of sag.
  • Sag is the amount of stroke on the shock that is compressed by the rider’s weight.
  • More air pressure will result in less sag.

Defining the Air Pressure

Defining the air pressure that fits you, depends on a few factors.

  • The air pressure depends on the design of the suspension. The same rider will need different air pressure on different bikes. You cannot simply transfer the air pressure from bike A to bike B.
  • The air pressure mainly depends on the rider’s weight. The weight should include all gear you wear.
  • Your riding style also influences the air pressure that fits you best. Adding air pressure will result in less sag, which means:
    • You will effectively use less travel
    • The geometry of the bike will be a bit more ‘up-right’, with a little higher BB
    • The chance to bottom out is smaller
  • Reducing the air pressure will result in more sag, which means:
    • You will effectively use more travel
    • The geometry of the bike will be a bit more ‘slack’, with a little lower BB
    • The chance to bottom out is bigger

The compression damping and the rebound damping are also very important in setting up the shock correctly. If for example you are a racer and have a very aggressive/ efficient riding style, you might want to go up in air pressure, but you can also play with the high speed and low speed compression.

Setting up the right amount of air pressure works best with measuring sag, but here is a list of estimated pressure-values as a starting point. This table also shows the basic setting for the four damping settings. The number of clicks is counted from fully closed.

Soft (27% Sag - 20.3 mm)

Rider Weight (kg) Rider Weight (lbs)  
Air Pressure (psi) HSC LSC HSR LSR
67 148   171 6 14 5 10
70 154   177 6 13 5 9
74 163   185 6 13 5 9
77 170   191 6 12 4 9
81 179   199 5 11 4 8
85 187   207 5 11 4 8
88 194   213 5 10 4 8
91 201   219 5 9 3 7
95 209
227 5 9 3 6
100 220
237 4 8 3 6
104 229
246 4 7 3 5
110 243
258 4 6 2 4
116 256
270 4 6 2 3

Regular (24% Sag - 18 mm)

Rider Weight (kg) Rider Weight (lbs)  
Air Pressure (psi) HSC LSC HSR LSR
67 148   187 6 12 4 9
70 154   193 6 12 4 9
74 163   202 5 11 4 8
77 170   209 5 10 4 8
81 179   218 5 9 3 7
85 187   227 5 8 3 6
88 194   233 5 8 3 6
91 201   240 4 7 3 5
95 209
249 4 6 3 4
100 220
260 4 4 2 4
104 229
269 4 4 2 3
110 243
282 3 4 2 3
116 256
296 3 3 1 2

Firm (21% Sag - 15.8 mm)

Rider Weight (kg) Rider Weight (lbs)  
Air Pressure (psi) HSC LSC HSR LSR
67 148   206 5 10 4 8
70 154   214 5 10 4 8
74 163   223 5 9 3 7
77 170   231 5 8 3 6
81 179   241 4 7 3 5
85 187   251 4 6 3 4
88 194   258 4 4 2 4
91 201   266 4 4 2 3
95 209
276 4 4 2 3
100 220
288 3 3 1 3
104 229
297 3 3 1 2
110 243
- - - - -
116 256
- - - - -

HSC – High Speed Compression

Large impacts hitting the rear wheel fast are absorbed by the spring and can be slowed down by the high-speed compression damping. Adding HSC damping will slow down the suspension when being compressed by a large impact.

LSC – Low Speed Compression

Small impacts hitting the rear wheel are absorbed by the spring and can be slowed down by the low-speed compression damping. With no LSC damping, the spring will be able to absorb every little impact and track the ground very precisely. By adding LSC, you can make your suspension use less travel on small impacts, which can make the suspension a bit calmer on small impacts.

HSR & LSR – High Speed Rebound & Low Speed Rebound

The rebound damping defines how fast the suspension extends after absorbing an impact. More rebound damping means that the suspension extends slower. If it extends too slow, it might not be ready for the next impact. A compressed shock is holding the energy from the impact, so if your rebound is too fast, you will get the energy right back to your feet, making the bike hard to control.