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170/60r17 tyre choice


MJ

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Posted

G'day all. New to the forum. Hoping that this has not been covered before, and that I'm posting this in the right place... I am trying to find out if anyone has had any joy finding good rubber in the 170/60r17 to suit my 1990 GSXR750L. Or if anyone has experience with fitting a 180/55r17 to theses bikes? I'm running Pirelli Rosso Corsas on my 1200 Bandit, and was hoping to find something a bit stickier for the 750. I have found Michelin PP's, Metzeler M5's and Bridgestone S20's in the right profile. Diablo II's are available too and are great. But that's a backward step from what I am running at the moment. Cheers in advance for any advice.

Posted

What is the rear rim width on your 90?  I have an 86 Slabby with 17" Dymags {3.5F, 5.5R} and I have no problems running a 180/55 on the rear. So far I have run Michelin PPs, PP/2CTs, and now Power SuperSports. 

Posted

Rim is a 5.5 I'm quite sure. I just noticed that it already comes in pretty fine along the torque arm for the rear caliper. I was thinking I could try slipping in the rear off my Bandit if I get really excited one day.. You never noticed any big difference in handling going to the 180? I know the profiles are very close between the two.

Posted

When I went to the 17s, that was the size I started with. I had also made an eccentric bushing for my Ohlins shock at the same time. It allowed me to raise the rear over 3/4s of an inch. Between that and the 17s it steers like a dream. Much less effort than the 18s and even more stable.

 

Posted

yes 750L has a 5,5" rim.

Tyre width depends on the tyre manufacturer. For example on my 750L I have a Pirelli 180/55-17, and a mate has on his 1100M (with exactly the same rear rim) a Michelin 180/50-17. The pirelli is 180mm wide, the Michelin is almost 190mm wide.

So if you buy a Michelin 170/60-17 the chance is very big that it's close to 180mm wide, just like a Pirelli 180/50-17. Don't know about other tyre makes but width varies quite a bit.

Posted

Looks like a 180 is the goods. That definately opens up the possibilities for me. Maybe I'll find some joy with Supercorsas or Racetecs after allh :) thank you very much for the advice on the GSXR. She's my new addition to the stable, and I want to make sure I dont take any backward steps along the way..

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