The secret there is the 46T large chainring. Let's you run the 31 rear without having to wrap so much chain.
Regards,
Jerry Moos Houston, TX
cmontgomery <cmontgomery15@cox.net> wrote: Ian Hibbel toured for years on an F.H. Grubb with a Stronglight 46-40 and Regina (5 block) 14-31. Nuevo Record on the rear and Record on the front. He said he put 100,000 miles on that bike.
Craig Montgomery
Tucson