Hi Andrew, my after speedo readings taken against GPS reading were more accurate than the lower profile tyres. I did inform my insurance company, apart from noting the change there was no increase in premium.
A downside is that I found it more difficult to get my hand over the front tyre in order to grease the top of the suspension.


Ian
2011 Plus 4
Wild Mogs Reims 2019, Goodwood 2018, Isle of Man 2017, Carried on to Caramulo" 2016