RobbRoy

Not going to a 520 ( at least on the 250 ) was confusing to me as well.... I have communicated with a gal at Talon and sent some info to the custom sprocket folks. Yes... The 1.171 / 90* defines the true position dimension. I did talk to Matt @ S&S previously. No suggestions. So much for easy fixes to make a play bike... Thanks again for the help !

Thanks Dan ! That helps a lot, but my ANSI dimensioning skills are lost somewhere in the grey matter... Does the 1.771 dimension enough to get the true position of the distance between the holes ? I'm not a machinist, but seems you might need both ? ..or is it self-defining in some way I do not understand ? Might you have the TALON P/N for the 1-2-5 sprocket ? Thanks again !

Howdy... Did you ever find an alternate solution for fitment ? A block of some sort ? Also looks like C/S sprockets are hard to come by as well. Anyone know where to find one ? Thanks... BB