David Cowie wrote:
Hello, shop cleaning and these popped up, brand new Nervar chain wheels. pol ished alloy, circa '75 or so. Very light shelf wear . Set of 1- 52 and 1- 46 tooth ring for $35 delivered, insured in 48 states, 2nd or more sets add $ 30 /set. 6 sets available. paypal ok. If I am not mistaken these are origina l for the Raleigh Gran Sport , Dawes and others from the early '70s
I know two series of Nervar alloy chainrings. One type used the 50.5 (?) mm 5-pin circle like the Stronglight 49, Williams, TA, etc. These sound like the other type, the Nervar Star 5-arm. You will want to note that these use a unique bolt circle that doesn't interchange with anything else known to mankind. Close to Stronglight 63/93, if I recall correctly, but no cigar. However, with a little time with a rat-tail file, I was able to adapt them to fit something else, back in the day. Worked fine, on a kid-back tandem I set up. I'll check the BCD when I get home.