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Post by jon on Feb 12, 2021 17:24:14 GMT 1
Hi all,
I’ve been scratching my head over the whole GP exhaust layout (2 up the right hand side, which necessitates a banana arm).
What is the advantage?
Jon
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Post by headcoats on Feb 12, 2021 17:32:15 GMT 1
I have some on my bike but can't answer the question LOL
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Post by jon on Feb 12, 2021 17:34:52 GMT 1
I agree, they look different; but is there any real world advantage?
I could understand if all race tracks had left end curves, for a ground clearance issue; but they don’t?
Jon
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Post by midlifecrisisrd on Feb 12, 2021 17:36:56 GMT 1
I always though ground clearance
Both up the right as the left is always restricted by the chain run
Steve
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Post by Tobyjugs on Feb 12, 2021 18:17:14 GMT 1
That's it chain clearance.  |
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Post by veg on Feb 12, 2021 18:23:41 GMT 1
It’s rather technical however the motion of the chain generates a cyclical force = F
The force of the out going exhaust gases creates an opposite force in this example = K
Therefore the inertia generated equals= N
So you then have heat generated from the friction which equals CL
Counteracted by the torsional stress = Ue
So the dynamic and thermodynamic equation is
F-K_N
___________/
CL- Ue
Less =
Cognitive stress
Hope that helps?
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Post by LC_BOTT on Feb 12, 2021 18:35:44 GMT 1
Probably following 'fashion' from the GP bikes of the time, they usually have a reason behind it though.
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Post by JonW on Feb 15, 2021 0:47:47 GMT 1
If you crash on the left you dont damage your pipes. Wahoo! Ahh... if you crash on the right. Disaster! Damn... Time for some underseat units...  |
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Post by donkeychomp on Feb 15, 2021 22:45:14 GMT 1
They just look cool is all.
Alex
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Post by kirkhd on Feb 16, 2021 0:17:38 GMT 1
They just look cool is all. Alex They did look rather good when they were fitted  |
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Post by Tobyjugs on Feb 16, 2021 12:48:45 GMT 1
I still say chain clearance
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Post by steve63 on Feb 20, 2021 20:36:57 GMT 1
Yep. It was done on GP bikes for ground clearance. They needed every mm they could get. Chain goes on one side so make the swinging arm curved on the other and fit both pipes to that side. Suzuki made the RGV250 VJ22 with a 'gull' arm. Honda spit their dummy out over it and made them change it. On a road bike it more about trying to look like a GP bike rather than any need although my pipe has touched down a couple of times on my VJ21 RGV with a pipe either side but that might be due to the pies.
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Post by jon on Feb 21, 2021 9:18:51 GMT 1
OK, so ground clearance. Not that I’ll every need every last millimetre the way I potter about.
The only thing I saw (apart my from cosmetic, which I prefer one either side) was that you can’t have a centre stand.
Jon
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Post by Tobyjugs on Feb 21, 2021 9:42:32 GMT 1
Personally i like the look of the pipes on both sides.
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Post by jon on Feb 21, 2021 9:50:17 GMT 1
Personally i like the look of the pipes on both sides. That sounds funny coming from you considering your Bakker build Still make perfect sense if you’ve done it for chain clearance. Jon |
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Post by Tobyjugs on Feb 21, 2021 10:06:55 GMT 1
Personally i like the look of the pipes on both sides. That sounds funny coming from you considering your Bakker build Still make perfect sense if you’ve done it for chain clearance. Jon Yes for that reason. You need your pipes up high and they are fat. With the standard LC i noticed when playing with ride height and different size sprockets, the chain can come very close to the pipe. |
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