I'm modifying my Avanti blade.
Is/was a 3*9 speed flatbar.
I have bought microshift 2*9 dropbar shifters and front/rear derailers.
Current chain is stretched, equipment smooth.
Coming off into spares drawer.
I have a 105 53/39 crank to replace the triple.
I can find 1/8 chain and tiagra 9 speed cassettes.
I'm lost as to where to hunt down 1/8 chainwheels. I would like 53/39. The derailer quotes usable with 52/39. Will assemble with old cogs first to verify shifting......
I have read that I can use 3/32 chainwheels yet I'd prefer to match size to size.
Anyone know where to look please..
Not in a rush... Bike is set up to handle winter!