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Old 27-Jun-2003, 06:12 AM
chris_of_1979 chris_of_1979 is offline
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Geometry...

I remember reading on the board a while back that if changing the fronnt tyre on a 748 from 120/60 to a 120/70, then to compensate for the extra height on the new tyre you should drop the front.
- problem is I can't remember how much by...

Anyone remember this? (tried searching, but alas to no avail)

Am putting on some Dunlop 208GP's, and hoping that I can get them warm enough on the road.
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Old 27-Jun-2003, 08:30 AM
neil748r neil748r is offline
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Chris,

You'd probably be better raising the rear rather than to push the forks up through the yokes for a couple of reasons. Firstly, dropping the front is going to give you less ground clearance (albeit marginally) and secondly raising the rear is going to raise the centre of gravity helping the bike tip into corners easier.

My 748r has a 120/70 front and the advice I got from JHP recently was 4 rings showing above top yoke for the forks and set the rear ride height at 246mm with a static sag of 8-10mm. Easy to do if you have or have access to a factory ride height tool. JHP also manufacture a perfect copy of the tool for a lot less than the OEM part. If you don't have the tool maybe somebody else on here could give you a measurement from some other reference point on the subframe or whatever.

As for the tyres, I doubt if you'll get the 208GPs hot enough on the road to really work. Try a set of Pirelli Diablos (standard compound), simply awesome! They're bl**dy good on track too!

Hope this helps.

Neil
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Old 27-Jun-2003, 08:53 PM
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Jasper Jasper is offline
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I have a copy of the tool plus a drawing i can e-mail.I will also bring it to the trackday,so everyone who wants to,can just trace around it onto a piece of aluminium or plastic.
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Old 27-Jun-2003, 10:46 PM
Haley Haley is offline
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Jasper, could you email me a copy of the tool drawing too -- PLEASE

Thanks

Darren
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Old 27-Jun-2003, 11:04 PM
Dion Dion is offline
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<Jasper, could you email me a copy of the tool drawing too -- PLEASE>

Me too please !!
Dion
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Old 27-Jun-2003, 11:13 PM
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Jasper Jasper is offline
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Darren,you have mail.Dion,you need to e-mail me,as you don't have your e-mail on your profile.

[Edited on 27-6-2003 by Jasper]
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Old 28-Jun-2003, 12:00 AM
KJ KJ is offline
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me too mate

Cheers

KJ
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Old 28-Jun-2003, 03:20 PM
adrian748 adrian748 is offline
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Difference is 12mm, 10% of 120
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