Hippy you do know dura ace cassettes are generally considered a bit shit? there is threads with a more than an oh-it's-a-one-off number of people having broken theirs particularly at the big three cogs, which would seriously put me off tuning/customising them to make jumps bigger
Hippy you do know dura ace cassettes are generally considered a bit shit? there is threads with a more than an oh-it's-a-one-off number of people having broken theirs particularly at the big three cogs, which would seriously put me off tuning/customising them to make jumps bigger