Wilbers Zero Friction Progressive Fork Springs / Standard Height & Factory Low F700GS '11-On
These Wilbers springs have a 6.5 N/mm to 8.0 N/mm two stage rate compared to the linear 6.0 N/mm single stage stock springs. This two stage progressive philosophy works really well in long travel forks such as on the F700GS.The first rate while slightly stiffer than stock is still soft enough to ride very nicely over the small bumps providing good comfort, but then they ramp up in rate under compression controlling weight transfer and nosedive under heavy braking, and add bottom-out resistance when the terrain gets more challenging.
Please note:
7wt oil is recommended for general purpose and for more dirt road riding.
10wt oil is recommended for sport-oriented street riding.
Air chamber is 160mm with springs removed and forks completely compressed.
Instructions for setting air chamber:
1) Remove fork spring and drain old oil.
2) Compress fork fully with spring removed.
3) Add oil until oil level is the prescribed distance from the top of the tube - this is your air chamber.
Piston rods should be pumped several times to dispel any remaining air before final measurement is made.