Blackbird x Ibis BlkBrd Seat Collar 34.9mm Green Cage Length-Medium and 90mm extension bar

and 90mm extension bar

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Blackbird x Ibis BlkBrd Seat Collar 34.9mm Green Cage Length-Medium and 90mm extension barMinimalist CNC machined and anodized aluminum 12mm clamp height from the bottom of the collar to the internal lip For 31. 6mm post use 34. 9mm clamp diameter, 16g For 34. 9mm post use 38. 6mm clamp diameter, 18g Torque Spec: 6Nm TECH SPECS Model BlkBrd Diameter 34. 9mm Color Green