Allen 20mm Multi Function Dynamic Block Boat Tech Dinghy D diameter (inch) 15/64"

D diameter (inch) 15/64"

hypoallergenic

Shape - Rectangular

Your unit snaps securely into this handlebar mount

Allen 20mm Multi Function Dynamic Block Boat Tech Dinghy D diameter (inch) 15/64"20mm Single Multi Function BlockThe multi function block has a slightly different strap compared to the A2020. The A2021 multi function block is the base block used in the following variations: A2021F, A2021HK, A2021SC and all double and triple variations. The multi function head is designed to attach our swivel, fork and cheek adaptors to. It is also used for riveting to the double and triple ultra straps. Bearings Dynamic Blocks feature our patented