• It's a BB30 one for HT2 cranks, couldn't tell you if the 'a' makes a difference or not

  • The ‘a’ makes no real difference to the BB. It’s a regular pressfit but 5mm wider. Just fitted a Sram PF after buying a hi-mod frameset the other day. Spent ages trying to work out what I needed... a standard PF was it!

About