Fork Spring Compressor Kit Manufacturer: OTC TOOLS Availability: 10000 in stock SKU: OT 4891 Manufacturer part number: 4891 UPC: 731413574368 Call for pricing Qty: Buy Now Custom wishlist OK Add to wishlist Add to compare list Email a friend Designed to install fork caps on forks with a large amount of spring pre-load.Kit includes 39mm and 41mm adapter sets, and one jackscrew.Application: 39mm and 41mm HD forks. Overview Attachments Reviews Designed to install fork caps on forks with a large amount of spring pre-load.Kit includes 39mm and 41mm adapter sets, and one jackscrew.Application: 39mm and 41mm HD forks.