I have an MK Indy Fireblade with the 898cc engine and standard gearbox driving through a 3.62 Sierra diff. The wheels are 15" fitted with 195/40/15 tyres. To allow me to approximately set up the speedo in the workshop what sort of road speed should the speedo show at 6000rpm. Cheers.

200mph Sorry mate, cant help... you still got problems with your speedo??? Think its time to throw it away and fit something else !

Good luck

Actually maybe i can help

Speed Calc

Give that a try !!!

Shows speeds lower down the page, just need the gearbox ratio too

[Edited on 2/6/09 by Ben_Copeland]

You need Chris calculator here

Anyway 53mph, about 125 @12000 rpm

Regards Mark

Mine does exactly 10mph /1000rpm in 6th on 195/50/15

Thanks guys, Ben, I am nearly there I think, I will be in contact shortly re: wheels if that's OK. Cheers Barry

My old fireblade avon would do 10mph for each 1000 revs too