hi there this is my first post, fairly new to this site, finding it very interesting, anyway just bought a competition ex mod c15 b40 frame with a year date 1965 to replace my road framed altered c15 1961 frame ,with a c15t engine fitted trials bike .it as cub or late bantam hubs fitted, having trouble with rear wheel seems like spindle needs more length maybe inch each side .do any body do a different size spindle . think ive sorted front end just need to use b25 bearing races with my original front end?any info would be helpfull cheers