Speed Merchant 39mm Narrow Glide Speed Triple Trees For Harley These trees have been designed for better stability especially when used with longer than stock shocks. They will also provide more stability at high speed, with a modified offset to increase the trail. Includes steering stem and external hardware for use with stock 88-13 XL steering stops. Features: CNC machined out of 6061 aluminum Increases trail by 0.500 for added stability Pre-drilled for internal fork stops Made in the USA