Hi, i am helping some friends build an MK fireblade, its got a 1995 blade engine, i have been trying to work out the speeds in gears. I have all the info save for the engine/gearbox primary reduction ratio, its not in the haynes manual, the calculator on here has the 1998 ratio, but i dont know if it is the same. Does anyone know what it is ??

These are allegedly the ratios for 92-95 Blade

Best confirmed as this was only found on fireblades.org

Primary transmission: 1.520:1
Internal Ratios:
1st: 2.769
2nd: 2.000
3rd: 1.578
4th: 1.400
5th: 1.250
6th: 1.174

As above
See this calculator Sprocket Calculator

Lots of other bikes
Various Bike Calculators

many thanks