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No I did not forget and yes I know how Richard sealed the sliding header but I do not feel at liberty to divulge his solution here: that's up to him....

Tried and tested by my German buddy Björn Enke.

Thanks guys and Jim.Cox for the kind comments!

the way i see it you dont need a lot of room as its gets shorter :) chuck a fork gator over it still way less complicated tnan camchains valve etc....

Looks epic.

Flett, the ATAC power increase I quoted of 28% was with a servo operated full PV system as well.

Surge in 'rheumatologic syndromes' caused by Covid 'vaccines,' study concludes ...

hope they dont do the F1 thing and get rid of the grid girls (again)

thats insane.Praps they took notice when they actually saw it? Was that Austria that the onboard showed it?

I already have a full powervalve system, closing both ports.

I fear I'm about to ask a stupid question, but here we go anyway. Is there any use adding one of these to a 2 into 1 pipe? I'm thinking the leg...

Interesting. Shades of when they sent Milandri to a psychologist because he criticised the bike. I thought GiGi had sorted those problems when he...

Two , or even better three angle, rear cones are used to manipulate the power curve by changing the amplitude and duration of the return plugging...

I thought as much, but then I am a pedant. This was interesting - an article on F1's possible influence on motoGP: ...

What's the deal with two angle reverse cones? Why are they used?

In vinduro I have to get out of the 'hairpin' every second corner.

I tested the ATAC system on the BSL500. With a volume close to the cylinder displacement ( bigger or smaller wasnt better ) and a very short tube...

There is strong competition but this is the most stupid thing I've read this week. A man spent over forty years in prison having been convicted of a...

Frits, you forgot about downside of sealing on the header compared to sealing on the belly, the temperature! Header heats up three times more than...

One of Honda's solutions, but of course not the same as sliding header.

What if it's rainy season? Some sort of creek crossing scoop mechanism?:msn-wink:

That looks spectacular.

My pipes are a compromise, one I like at the moment for the mid and low range power, top end is great but shorter pipes with steeper cones would be...

Yes, for me, water supply is an insurmountable issue for an off road bike, with events being one and a half to two hours none stop.

We used water injection on our 26 & 35cc RC boat engines to get the torque needed to accelerate up to the speed traps. Since there's an unlimited...