You could work out what power GP bikes must have by the speed they do

This nomogram was put up a while back on the RGV forum, thread here.

So what we need to know now is how fast a standard RS250 will go as it's power is known.

So we know a 65bhp or so NSR will do around 135 with a flyweight on (Bill Limb can get his to the redline in 6th geared for around 135 on the flat). So an NSR 250 has a CDI of 2.85 and it's fairly RS shaped.

If a std RS250 has got 90bhp and we take it's CDI is 2.85 (ish) it's going to do around 155mph, which sounds about right.

Then by the fact we know a works NSR will do 166mph we know it must have around 110bhp.

We can also see the Aprilia's which top out around 175mph must be knocking on the door of 120bhp!

Capiche?
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