All about clutches on the GSXR1300 Hayabusa/Part 3 of a 3 part
Shortly after the 2nd part of the article came out (about an hour) I got a phone call from a good friend and multi class champion racer Andy Baumbach, he told me, “Your 60’ is still high, you need a multi-stage, it is more adjustable.”
Multi-stage lock ups / clutches
Multi-stage set-ups operate in much the same way as a single-stage, although they have more adjustability.
What makes the multi-stage different from the single is the fact it has the ability to attach springs to the centrifugal arms as well as by adding weights to them for a greater range of tuning.