Chris King seatpost collar

With design cues from Chris King's headset cups and bearing caps, these collars are machined from aluminum in the USA, finished with the King logo and a cheeky little bee etched on the barrel nut. Easily adjusts for optimal thread alignment and clamping force, because that's what seatpost collars do. Specifications • aluminum collar with stainless steel bolt, washer, and barrel nut • available sizes: 30.0, 31.8, 34.9mm • weight 35-43g • available in ten colors Sizing info Not sure which size you need? Don't just take a wild guess - measure your seat tube or ask us! Helpful size hints: Most steel frames that take a 26.8 or 27.2mm seatpost use a 30.0 collar. Most aluminum frames that take a 27.2mm seatpost use a 31.8 collar. Aluminum frames that take a 31.6mm seatpost use a 34.9 collar.