Any idea why?

[Fishy]

*cough* bullshit.

You gotta be 105 on your own, tubby.

Don't be jealous mate, just cause you're built like a siberian endurance racing insect.

[beyond]

GSXR1000 rake and trail are 23.45 degrees and 96mm

[The_Dover]

Don't be jealous mate, just cause you're built like a siberian endurance racing insect.

Hey buddy, you need a big hammer to drive a big nail.

[sAsLEX]

GSX 1400
Rake/Trail - 26 degrees / 105mm (4.1 inches)

GSXR1000 rake and trail are 23.45 degrees and 96mm

a reasonable difference there I would say.

[Fishy]

Hey buddy, you need a big hammer to drive a big nail.

Can't have a big party under a small marquee.

[eliot-ness]

Couldn't the answer simply be that sports bike riders tend to turn in later than tourer riders, thus tightening up the corner and requiring more lean at the same speed??? Had a brother who, riding an identical bike, regularly scraped the pegs when I didn't, yet was traveling at the same speed. He was the same height and weight and the bikes were set up the same.

[Drunken Monkey]

Good point mr prohibition enforcement dude. If I'm bored and the pace is slow I will definately wait and turn late to make the corner more 'interesting', so although the bend of the road is no different, the line of each rider through the bend can be. In saying that, aren't we talking about different lean angles given speed AND line are constant?

[beyond]

In saying that, aren't we talking about different lean angles given speed AND line are constant?

Correct, same lines, same corner, same speed, different lean angles.

[Fishy]

. In saying that, aren't we talking about different lean angles given speed AND line are constant?

Speed through the corners and lines through the corners were the same.

[Motu]

So tire profile is out of the equation.
.

It's the CG over the contact patch that determins the lean angle - so the 1400 will have the CG higher and so require less angle of lean.

[Ixion]

I think you're right, intuitively. Weight up high means less lean needed. But that conflicts with the "choppers need less lean angle" theory?

[Edbear]

Ah! You guys get so comlimicated overlymuch! It'sall 'bout STYLE, Darlinks!

Sumtimes I leans a lot, sumtimes I leans a little but most times I make it 'round ze bends anyways...!

[idb]

It's the CG over the contact patch that determins the lean angle - so the 1400 will have the CG higher and so require less angle of lean.

Which is also affected by tyre profile.
The fatter the tyre, the further the bike has to be leaned as the contact patch moves further away from the centreline of the bike.

[Ixion]

Just to complicate matters - is it the static CoG we are talking about here or the dynamic centripetal centre of mass ?

[Motu]

Which is also affected by tyre profile.
The fatter the tyre, the further the bike has to be leaned as the contact patch moves further away from the centreline of the bike.

As the contact patch moves inward,the CG has to follow,the higher the CG the less it has to move.The opposite is the case with narrow section tyres,with narrow section tyres a lower CG gives less lean.Total confusion eh?

If no one comes up with the diagram to explain,I'll scan my Tony Foales book tonight....after Dr Who.