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wheel size 18" verus 19"
#650629 04/29/16 8:30 am
Joined: Feb 2010
Posts: 354
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Have and A10 with Suzuki (GS550) front end on it. with 19" mag wheel. I have a chance to get a Kawasaki (KZ400) front end with a spoke wheel but 18".
Will I see and major handling changes? Should I wait till I find a 19" spoke wheel. Both have disc brakes that is what I like.

Thanks for your opinion.
Red


57 A10 GF
61 A7
61 A10 GF
63 A10 SR
76 CB 125 Honda
76 FLH
2012 FLHTP
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Re: wheel size 18" verus 19"
Red Lapierre #650650 04/29/16 11:34 am
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Hi Red,

Originally Posted by Red Lapierre
Will I see and major handling changes?

Short answer: Depends.

Longer answer ...

If you put the same-width tyre on the 18" rim as is on the 19", because tyre height is a function of tyre width, the overall diameter will be 1" smaller, so the front will drop 1/2". This doesn't sound a lot but it does steepen the effective steering angle; this might translate to more wobble-prone. frown

You can compensate for the smaller rim diameter with a fatter tyre; because tyre height is a function of tyre width, a wider tyre is also taller - e.g. if the 19" rim has a 100/90 tyre on it, if you put a 110/90 tyre on the 18" rim, the overall diameters will be very similar.

But increasing the tyre width makes for slower steering ...

Originally Posted by Red Lapierre
Should I wait till I find a 19" spoke wheel.

As the KZ400 wheel is spoked, have you considered just rebuilding it with a 19" rim?

Hth.

Regards,

Re: wheel size 18" verus 19"
Red Lapierre #650681 04/29/16 5:13 pm
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On my first 1100 Suzuki (GSX1100EX) I swapped the 19" front wheel for a 17". It transformed the handling from a bike I had to really muscle into a corner to one that just went into a corner with no drama. I guess what I am saying is a smaller front wheel makes the handling quicker/lighter


BSA B31 500 "Stargazer"
Greeves 200 "Blue Meanie"
Greeves 350
Greeves 360
Suzuki GSX1100 EFE "Sorcerers Apprentice"
GM500 sprint/LSR bike "Deofol"
Jawa 500 "Llareggub"
Aprilia RSV Mille "Lo Stregone"
'35 & '36 OK Supreme
Kawasaki ZZR1400 "Kuro no senshi"
Re: wheel size 18" verus 19"
Red Lapierre #651306 05/03/16 10:57 pm
Joined: May 2013
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Those KZ400 forks are real minimal, imprecisely made, built down to the lowest possible price...I wouldn't use them on a bet.

Re: wheel size 18" verus 19"
Red Lapierre #651356 05/04/16 9:25 am
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I passed on buying KZ 400 front end. I will keep looking for a 19" spoke to fit the GS550. Thanks for all.


57 A10 GF
61 A7
61 A10 GF
63 A10 SR
76 CB 125 Honda
76 FLH
2012 FLHTP

Moderated by  GrandPaul 

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