I’m having trouble refitting a two speed gear in my 29 Sports Squirrel.
I can’t seem to get the high gear chain tight enough although the low speed gear chain is possibly too tight. I have fitted new chains according to the spec. in the book of the scott (66 link/78 link) and even though there is excessive play in the high gear chain I am not sure that I can drop a link. I am not happy with fitting a half link.
There’s usually some mismatch in chain tension and which varies depending upon which low gear sprocket is fitted. 36′ 40 and 47 teeth variations were available.
There is nothing wrong in fitting a cranked link/half link. The factory supplied them. I’ve used them for thousands of miles with no problems.
This problem has been reviewed many time over many years, In technicalities both Tom Ward and
Keith Rhodes have written on the subject, Ward Yowl 10 4 3 and Rhodes 7 5 10. both are worth
Assuming you have standard Gear Box sprockets ,It is only the
low gear that causes the problem, which Ward calculates at 77 links.
Ward pre dates Rhodes by some years ! Best regards
Very helpful – I have been wrestling with the same conundrum since coming back from the Kingdom of Morne with a broken gear lug on my 1925 Super Squirrel.The difference in tension is quite remarkable. Hopefully I can get into the garage this weekend to finish the job now!