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daytona365
15-04-11, 07:43 PM
The tyres on the 180 are 205/45-17.............I know the middle number is the aspect ratio, ie percentage of height compared to width. What would happen if I fitted 205/50-17's? Would it make my speedo run slow, as of course the wheels would go faster...........?

Only asking cos at work we getting rid of 15 Uniroyal 205/50-17ZRs as we have changed tyre suppliers and uniroyal and contis have been replaced by Pirelli and michelin......................:mbounce:

big_wasa
15-04-11, 08:27 PM
Speedo reads 70mph your actual speed will be mph 72.33 Most speedo's seem to under read so my "guess" is it should be acurate.

How cheap :idea:

Also it will jack the car up 21mm. The down side...

daytona365
15-04-11, 08:45 PM
Not sure how cheap yet, but most probably the price the garage paid for them. Only fits a few of our cars.......... May wait to see how cheap I can get the 205/45-17s unfer the new contract...........