Fast Pin 5mm DiaA5005 Pin Dia. (mm) Useable Length (mm) Overall Length(mm) Weight (g) 5 12.5 26.5 6.3 Designed to complement the Allen stay adjusters, these quick release pins allow for fast, flexible adjustment on the race course. Can also be use in other applications and with other manufacturers where pin dia. and usable length suit. These are the pins used in the A4772 range.