C3 looks like it fits into are existing inner chain case is that correct?
How many different ratios do you have?
I am running a 19/43 now what would that equate to your system?
Can you explain why it would give me more top end?
Thanks Jim
Yes fits right in. You could run 23/53=2.30 or 24/53=2.21. I would run 2.21 which would still give you a little more bottom end fell than you have now. It gives you more bottom end and top end because of less rolling resistance and rotational mass. We have seen 5-7mph top end increase using the same gear ratio.