• Hello there, hope that’s correct place to ask!
    I have Carrera TDF PRo and it’s now asking for some changes. It is currently supplied with Shimano RD2300 and freewheel.
    If I just buy whole groupset, ie Tiagra: https://www.chainreactioncycles.com/shimano-tiagra-4720-10-speed-groupset-disc/rp-prod193689 will that be compatible? I understand wheel will have to be replaced to support cassette, but is there something more? Is there a place in London where I can bring this bike with parts to have this done that you can recommend? Any help will be appreciated.

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