i've run splined and destroyed one in a short time (tree are replacing it), but i went back to a bolt on (with larger bolt head). also tried 22mm axle, but the bearings chewed out, back to standard 19mm although some people believe the bearings in these are to small. hence why some people are making the frames with o/s bmx press in bearing bb's ie teds own frame at the moment.
i've run splined and destroyed one in a short time (tree are replacing it), but i went back to a bolt on (with larger bolt head). also tried 22mm axle, but the bearings chewed out, back to standard 19mm although some people believe the bearings in these are to small. hence why some people are making the frames with o/s bmx press in bearing bb's ie teds own frame at the moment.