Does yours accelerate like this?

[Carrera2]

Just look at the acceleration on this thing!

140mph before the front wheel comes down then it just rockets to what must be 230+mph...


http://video.google.com/videoplay?docid=-6362400596406421511&q=wheelie

[momentofmadness]

An old vid, but very cool!

I believe the bike is 'geared down' for maximum acceleration, hence the misreading speedo - I'm sure the white lines would look continuous at 200mph!

[Carrera2]

Really? Changing the gearing doesn't alter your speedo reading though as it's taken from the front wheel - at least it is on my bike.

I'm confused now.

[momentofmadness]

The Busa's speedo reading is taken from the gearbox

PS Nice Duke!

Paul

[Carrera2]

momentofmadness said:

The Busa's speedo reading is taken from the gearbox PS Nice Duke! Paul

Ah - well that clears that one up!

PS Thanks.

[Mikey G]

Carrera2 said:

Really? Changing the gearing doesn't alter your speedo reading though as it's taken from the front wheel - at least it is on my bike. I'm confused now.

If it was on the front wheel how the hell would it take a reading 3ft up in the air

Seen the vid many times and it never ceases to amaze me.

[Carrera2]

Mikey G said:

Carrera2 said: Really? Changing the gearing doesn't alter your speedo reading though as it's taken from the front wheel - at least it is on my bike. I'm confused now. If it was on the front wheel how the hell would it take a reading 3ft up in the air

Very good point!

[veetwin]

Most modern bike's speedo pickups are from the output shaft hence the innaccuracy when regeared as already highlighted. GPS seems to be a good way of measurement or pushbike speedos that pickup off the front wheel.

[Carrera2]

So if this bike was re-geared, what speed do you reckon he was doing at the end? Significantly less or marginal?

[veetwin]

Depends on what teeth he was running on front and rear sprockets.