RockShox Crown, Steerer, & Uppertube Assembly Description: The Rockshox Crown, Steerer, & Uppertube Assembly is a factory replacement part. Whether you are replacing a damaged and worn out part or if you are swapping your old fork to a new frame and need a longer steerer tube, this part will give new life to your suspension fork. Features: Includes the Crown, Steerer, & Uppertube Assembly Specifications: Compatibility: Pike Solo Air 27.5" Stanchion size: 35mm Taper: Yes (1 1/2" to 1 1/8") Offset: 42mm Color: Diffusion Black, no gradients