top speed

[Andy Brown]

would any body have an idea what is the usual top speed for my m600 it has open blue flame cans but seems to struggle to the 100 mark as i dont know any local m600 i have nothing to compare it to:

[tommo]

mine has a 14tooth front sprocket and is good for 115mph.

[CK & AK]

depending on the gearing, you can top over 120 mph on a carbie.

At Oulton we were running tall gearing (14/46) on a 2001 M600 and it was topping 100

At Assen on the back straight with different gearing we were pulling approx 120.

Also depends on what you rev it to - through the gears, as that will make it pull top end better - if you can link the gears. But difficult to do on normal roads

But obviously you are only going to do these speeds on a private road? ;)

[CK & AK]

mine has a 14tooth front sprocket and is good for 115mph.

and the rear?:confused:

[tommo]

standard.............

[CK & AK]

standard.............

ahh, depends on what year it is, as to what is std Tommo;)

The late ones (99/01) usually have 15/46 as std, but the earlier ones 98 - 2000) can have a 45 - they do vary sometimes mate:)
Pre 98 had different gearing again, as the primary drive is different

Obviously the 115mph is on a track innit mate;)

C :D

[tommo]

it says z-43?

[Andy Brown]

thanks for the info i will have to check the sprockets and probably make adjustments but obviously would not try to top it out on a public road that would be illegal

[SimonH]

Andy,
Top speed can be calculated as horsepower at the back wheel/drag (wind resistance.

A standard motorcycle with no streamlining (your monster) with the rider sitting upright in normal riding gear (OOO- ER!) will require 30bhp to achieve 100 mph.

Every additional 25 mph requires a doubling of the bhp. So a 60bhp motorcycle - say my Kawaski H1 will do 125 mph. (You have to be particularly brave to do this!)

After that it is down to gearing the engine so that the top speed you want (providing the bike has the bhp) coincides with the maximum output of the motor as AK says.

The only other point is when you fitted the cans did you dyno test the bike? You may need to vary the carburettor jetting to get the best performance from the motor - they're all different!

Good luck
SimonH:flag: