I need to update my 9 speed triple crankset at 52/42/30, and those combinations seem difficult to find when I'm also looking to upgrade. A more common teeth combination seems to be 50/39/30, but I'm wondering what else I might have to upgrade if I make this move? Or is there another combination that I'm not aware of so that I don't have to make these updates?
- Do I need a new front derailleur? (currently have Shimano Tiagra T, down pull, braze-on type w/34.9 mm clamp attachment)
- And I have a 9 speed SRAM chain and 9 speed SRAM cassette. Will those need to be updated?
- Lastly I have 9 speed Shimano Tiagra STI Dual Controls, will those need to be updated as well?
Any advice would be great. Thanks!