It's been brought up in treads last year that there were difficulties in mounting the FOX FLOAT EVOL-R ski shocks
Because of the location of the Adjustment knob on Air sleeve head (the know was on the OPPOSITE from the EVOL Chamber), you could only mount the shock in one position, with the EVOL chamber-end of the shock mounted to the lower A-ARM.... Also, Because of the new "inline" location of the EVOL chamber, Rather than "clocked" off to the side... there was interference with the swaybar mount.
I brought this up in a good discussion with the powersports people at FOX...
Well, for this season... FOX listened to us... pretty cool
For the 2014/15 FOX SHOX production run...On the EVOL-R (only "R" model and NOT the RC2, aka "X") ...
The Adjustment knob is NOW located on the SAME side as the EVOL chamber.
From FOX Racing SHOX PowerSports Division
The EVOL-R adjuster knob is located on the same side as the EVOL chamber on EVOL-R Ski Shocks only.
The Rear suspension (front-track and rear-track) EVOL-R adjustment knobs are still located on the opposite side of the EVOL head for the shocks.
These changes are also present in the same models of current production Burandt edition shocks.
NOTE: The FOX RACING SHOX website still has photos of the previous design EVOL-R shocks on their website... They are working on updating in them in the months to come.
This is true... only... starting in the current year production of the EVOL-R.
As a note on the function of the EVOL-R adjustment knob.
This knob controls a piston bypass needle valve that allows oil to flow in both compression and Rebound motion.
Rather than strictly a "Rebound" adjustment on this shock.... You should look at it as more of a "Compliance Adjuster" that affects both rebound and Compression events...The effect of this is also affected by the air-spring pressures used.
Another misconception of the function of the EVOL chamber feature is that the EVOL Equipped shocks they "ramp-up" the spring rate at the end of the shocks travel and they have an more progressive character because of the EVOL chamber... and this prevents bottoming because of a more progressive character.
This is actually the OPPOSITE of the design purpose of the EVOL chamber. The EVOL chamber allows for more LINEAR spring rate (Less progressive) to keep the shock from getting harsh at the end of travel. You can run more initial air pressure in the shock without the pressure ramping up so much at the end of travel that the the shock gets harsh before full stroke is realized. The secondary air chamber of the EVOL, which has a floating piston in it, tips in and keeps the air pressure to reasonable levels and allows true full-travel of the shock in a very LINEAR way.
.
Because of the location of the Adjustment knob on Air sleeve head (the know was on the OPPOSITE from the EVOL Chamber), you could only mount the shock in one position, with the EVOL chamber-end of the shock mounted to the lower A-ARM.... Also, Because of the new "inline" location of the EVOL chamber, Rather than "clocked" off to the side... there was interference with the swaybar mount.
Photo of last years FLOAT3 EVOL-R shock with the adjuster on the opposite side of the EVOL chamber
I brought this up in a good discussion with the powersports people at FOX...
Well, for this season... FOX listened to us... pretty cool
For the 2014/15 FOX SHOX production run...On the EVOL-R (only "R" model and NOT the RC2, aka "X") ...
The Adjustment knob is NOW located on the SAME side as the EVOL chamber.
From FOX Racing SHOX PowerSports Division
NEW FOX FLOAT EVOL-R WITH ADJUSTER KNOB ON SAME SIDE AS THE EVOL CHAMBER:
The EVOL-R adjuster knob is located on the same side as the EVOL chamber on EVOL-R Ski Shocks only.
The Rear suspension (front-track and rear-track) EVOL-R adjustment knobs are still located on the opposite side of the EVOL head for the shocks.
These changes are also present in the same models of current production Burandt edition shocks.
NOTE: The FOX RACING SHOX website still has photos of the previous design EVOL-R shocks on their website... They are working on updating in them in the months to come.
This is true... only... starting in the current year production of the EVOL-R.
As a note on the function of the EVOL-R adjustment knob.
This knob controls a piston bypass needle valve that allows oil to flow in both compression and Rebound motion.
Rather than strictly a "Rebound" adjustment on this shock.... You should look at it as more of a "Compliance Adjuster" that affects both rebound and Compression events...The effect of this is also affected by the air-spring pressures used.
Another misconception of the function of the EVOL chamber feature is that the EVOL Equipped shocks they "ramp-up" the spring rate at the end of the shocks travel and they have an more progressive character because of the EVOL chamber... and this prevents bottoming because of a more progressive character.
This is actually the OPPOSITE of the design purpose of the EVOL chamber. The EVOL chamber allows for more LINEAR spring rate (Less progressive) to keep the shock from getting harsh at the end of travel. You can run more initial air pressure in the shock without the pressure ramping up so much at the end of travel that the the shock gets harsh before full stroke is realized. The secondary air chamber of the EVOL, which has a floating piston in it, tips in and keeps the air pressure to reasonable levels and allows true full-travel of the shock in a very LINEAR way.
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