Originally Posted by
Dr_UNIX
A1. NO. The R7000 or R8000 shifters will NOT work with any 10-speed cassette. They will work fine with your Tiagra 4700 RD + FD to shift an 11-speed cassette.
So, one more complex matching components question related to the A1 answer for a step-up "easy" upgrade:
1. GRX 600 shifters (2-11sp) - which are fully compatible and interchangeable with 105-r7000 shifters (to buy)
2. GRX 400 disc brake calipers - which are fully compatible and interchangeable with tiagra 4700 or 105-r7000 dics brake calipers (already bought)
3. Tiagra 4700 FD with Tiagra 4700 crankset (that I'm now using)
4.
Tiagra 4700 RD (that I'm now using)
5. 105 r7000 (CS-HG700) 11sp cassette (to buy)
6. 105 r7000 (CN-HG601) 11sp chain (to buy)
I know these groupset is a lot of mixed, but as I have all the Tiagra parts and planning to buy the GRX 600 hydraulic shifters or 105-r7000 hydraulic shifters, it leads me to at least change of cassette and chain.
In the future I might upgrade more parts but do I also need to change the 4700 RD for an 105-r7000 RD at once?
Thank you!