Originally Posted by
byrnefrankie
UpdateThanks everyone for contributing. It's my first time on here and it's been very helpful.
I've actually managed to free up my 4600! A bit more WD40 and using a tea towel wrapped through it for a bit more grip seems to have done the job! Well, hopefully.. I'll find out soon.
The 4700 looked like it wouldn't be compatible as most people have mentioned
Good for you, I am glad you decided to give it a try. If it is working by hand, it should work on the bike. BTW, I think the Tiagra 4600 is a fine group set for the price. I am using 4600 STI levers with the rest of the drivetrain being 6600. The shifting is outstanding. I pieced the 6600 together, but 6600 levers that are NOS, or in excellent condition, are very pricey. The 4600 were NOS when I bought them a couple of years ago, $76 with shipping from Korea. They have inflated in pricing also.