Large size for 45 mm to 55 mm fork tubes.

• To use the Seal Doctor, just lower the dust seal and snap the Seal Doctor on the fork tube and then insert it into the leaky seal and twist 360°, and pull down to remove dirt and grime
• The design of the Seal Doctor maintains the proper position and angle while rotating around the fork tube so there's no need to remove most fork guards
• Prevents and cures leaky fork seals in seconds
• Comes with a protective holder, so it can be stored safely in your toolbox or trail pack