I had a question regarding a new crankset, shifters and cassette and chain. The New Sora Groups set shifters are 9-speed. I currently have the 8-speed Sora STI shifters. And I'm looking to either go compact or stay triple with the new 9-speed Shifters. I currently have a 52/42/30 Bontrager Triple and an SRAM PG-850, 12-26 cluster. I also have a Sora FD and a Tiagra RD.
My question's are:
1. Should I continue a triple or go compact? What are the advantages -disadvantages?
2. What size cassette? I know a 9-speed, but what custer size?
3. How do I determine chain length? The current SRAM PC68 8-speed chain would be shorter, right?
Just FYI, I've been riding for about a year entry-level for exercise mainly and recreational--mostly flats, a few city hills but no mountains really... yet.
I usually stay in the larger chain ring and average about 20-24mph with a few sprints at 30mph.
Thanks for your help and input !
(P.S. Don't laugh at my pedals ! )