I have had one of these installed for yonks,
and???
was it worth the effort??
OOPS sorry don't know why I left that, as it was,(not making much sense).
Right it works perfectly and I think you can put a bit more tension on the spring without making the change clunky.
Would like one for my other bike but haven't seen them advertised since I bought the first one, run's in my mind it came from Australia.
Just re read Musky#s post, would Beeza Bill be the originator
Yes ideal time to install one if your in there, I've a spare box I want to rebuild so might do it up over the summer and put one in if they ever appear again