Wilbers Zero Friction Progressive Fork Springs / RnineT Pure '17-on

Wilbers top quality chrome silicon steel fork springs.

Polished for reduced friction.  

You will need one (1) bottle of 7 weight fork oil - see related items.

Recommended air chamber 110 mm.  

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.