Check the listing for details. Wheels Manufacturing Pro StackRight Headset Spacer Kit - Orange. Color: Orange, Condition: New. Listed at 36.99 USD. StackRight Headset Spacers look great and stay that way! No more misaligned headset spacers thanks to the StackRight technology, which locks spacers together with an interlocking channel for a clean, sleek look. The Pro kit features a flat top cap design which conceals the stem bolt for a custom finished look.Fits 1-1/8" threadless fork steerer. Inner Diameter: 28.9mm. Outer Diameter: 34.4mm. Precision-machined 6061 aluminum. Kit includes 1.5mm (2), 2.5mm (2), 5mm (1) and 10mm (2) thicknesses. Headset base cap. Flat top headset cap. M6 x 35mm stainless steel bolt. Item Specifications: Color, Orange, Material, 6061 Aluminum, Defined Color, Orange, Thickness, 1.5, Thickness, 2.5, Thickness, 5, Thickness, 10, S.H.I.S. Stem Clamp Diameter, 28.6, SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us