Fox Fork Lower Leg Service Kit

This kit is compatible with Fox 36 Factory, Performance Elite, Performance, and Rhythm series forks equipped with GRIP, GRIP2, GRIP X, or GRIP X2 dampers. It also fits MY18 and newer Marzocchi Bomber Z1 forks with GRIP or Rail dampers.

The kit includes the essential 36mm seal driver, suspension fluids, grease, and cleaning supplies. While this covers the core maintenance, you will still need standard shop tools like hex keys, a torque wrench, and a socket set to remove the fork lowers and damper controls.

Fox generally recommends a lower leg service every 125 hours of ride time, or once a year, whichever comes first. If you ride in particularly muddy or dusty conditions, you may want to perform this maintenance more frequently to prevent premature wear on your stanchions.

Yes, this kit is designed to simplify the process by bundling all the necessary fluids, seals, and the specific seal driver you need. However, you should have a basic understanding of bicycle suspension mechanics or follow a step-by-step service guide to ensure the seals are seated correctly and the oil levels are precise.

The 4wt oil is typically used for the damper side to ensure consistent damping performance, while the 20wt Gold oil is used for the lower leg bath to lubricate the bushings and seals. Using the correct weight in the correct location is critical for the fork to function as intended.