The trend in BMX is to raise the handlebar height. So many riders are using multiple spacers of various sizes. Smooth that look out with the Shadow Stacked headset. The cap is 15mm tall so the riders can have a cleaner look with a smooth radius design and topped off with the Shadow Crow button. For integrated head tubes with 45 x 45 angular bearings. – Includes 2 sealed bearings, top cap, alloy compression washer, 2mm spacer.