Add a splash of color to your bicycle with our new vibrant seatpost collar clamp. Available in anodized Black, Silver, Purple, Orange, Green, Gold, and Blue. Color coordinate by also checking out our new faceplates! Seatpost Clamp Collar Sizes: 31.6mm collar clamp: Compatible with DV9, Ibis AF V1 Frames, Oso, and Ripley SL 34.9mm collar clamp: Compatible with Ripley V5, Ripmo V3, Ibis AF V2 Frames, and HD6 Not Compatible: These clamps are not suitable for older Ibis seatposts with curved seatpost collar clamping area. [Curved seat collars are available here.] Specifications: 31.6mm collar clamp: 34.9mm clamp diameter, 16g weight 34.9mm collar clamp: 38.6mm clamp diameter, 18g weight Material: CNC-machined and anodized alloy Clamping Height: 12mm (from the bottom of the collar to the internal lip) Torque Spec: 6Nm | Thread Prep: Polylube Grease Note: These collars are also compatible with non-Ibis bikes. Please check your bike’s seat clamp specifications for compatibility.