Will new tyres gives my Astra a softer ride?

I have a Vauxhall Astra (2011) SRi 2.0 CDTi running on 225-50-R17 tyres and the only complaint I have with the car is it's very firm ride. As the front tyres are soon due for changing, and the rears are not far behind, will changing to a different profile make for a softer ride, and is it possible to do this? Also can I start by just changing the fronts and then the rears at a later date, or will this upset the handling?

Asked on 23 November 2014 by Gopher Spain

Answered by Honest John
You would need to change the wheels as well, for example to 16" wheels fitted with 205/55 R16 tyres. You can't put deeper profile tyres on the same wheels without altering the gearing, and possibly causing clearance problems.
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