Bb question pertains to chainring size. I use from46 to 51t. All sizes in between. Seen a 103 bb and it looked like it had chainring issues. Friend ended up using a 107 bb. This was on the his two week old fresh out the box Dolan pre Cursa. That's why I ment it.
And what size bottom bracket to use with a 47t chainring 130 BCD