Fine tune your forks to your riding preference with PJ1 Gold Series Fork Tuner fork oil. Non-fading, non-foaming formula offers consistent smooth damping action for a more predictable ride in hot or cold weather. Contains an additive to prolong fork seal life. 5 weight extra light oil is suitable for all cartridge damper type and hydraulic forks. Allow an extra 1 or 2 business days for delivery of this item.