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22nd October 2019, 17:23 | #1 |
Avid contributor
Rover 75 Conny SE Starlight Silver Join Date: Dec 2014
Location: Coventry
Posts: 107
Thanks: 59
Thanked 24 Times in 17 Posts
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Wheel tyre sizes
Hi
I'm thinking of changing to larger wheels could somebody advise me if they will be better or detrimental to mpg. Original size is: 215 55 16 Replacement is: 225 45 18 Odometer readins are as stated: 16" wheels at 50 mph 18" wheels read 51.27 mph 16" wheels at 100 mph 18" wheels read 102.55 mph Overall diameter is 16.8 mm larger on the 18" which equates to +2.55% Can't get my head around if that's better for mpg or not Thanks Col |
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