Yep it sure is stock 3 1/2 inch

Has a michelin pilot "race" 170 55 17 on it ...... seems really old too

The 55 aspect ratio makes it have shorter sidewalls I'm guessing - interesting !

most current day 170's are a 60 & 180's are a 55

Buying Shinko Verge 011 tires for it in 120 70 17 & 170 60 17 ($215) / set

and another Verge set with a 180 rear for my 93.

My neighbor just grabbed a Verge set for his "new" 1000F (see saloon)
at same ($215) deal

 

Does the shape look OK on the 3 1/2 rim?

 

Why do you say the upper fairing is flimsy, Sprock ?
Maybe without the screen and support frame, or is there damage ?

Isn't the 170 too wide for that rim ?
The 170 is the std tyre for the 89/90 onward bike, I think the 87 was a 150..............????

 

Standard is 140 for an 87, that's why I asked if the shape looked OK. Seems to me that I would be squeezed in quite a bit. Could you measure the width while it's on the rim for us Sprock?

 

A 170 on an 87 rim would be a DANGEROUS choice Sprock.
It'll be unstable and plain unsafe at any speed................ on that rim

Be a bit like fitting a Nascar tyre to a tricycle. Too much wall movement, heat build-up and that's assuming it'll go in with no clearance issues, although I suspect it will. The bike handling won't be good atall atall.

Go for the 150 MAX width.

 

Hmmmm as I said it's a weird sized 170 - 55 on it - short sidewalls

I'll measure it tonight robbie !

Yeah Pete the left ear up by the screen was broken , when I took it
off a lousy fiberglass repair was in behind it. Carefully pulled it apart
and will repair correctly with two light steel / rods and JBweld
it will never break there again. Also below the headlight has cracks
and will get the same treatment which as always worked well for me
- strong and very light - basically welding rods with the flux taken off
and JBWelded in behind - stronger than all hell !

But in general the whole upper 87 cowl is much lighter and more flimsy
than a 90 or 93 - guage of plastic is much much thinner - which imo
is why they crack and break up so much - that and the way the mount
points are setup and the fact the weight of the headlamp unit and
windshield are totally supported "only" by the cowling - all contributing
factors for degradation and cracks over time - even the mid fairing hangs
off the front of it adding more stress !

Bad design - better on later models

 

I had a 160 on my 87 rim and the shape looked terrible. I ended up going with a 150 and in my non expert opinion thats the biggest you can go if planning on turning aggressively.

Heres the 160 you can see theres no shoulder

[IMG][/IMG]

 

Hi pmcg, I didn't think you could get a radial in 150, so what did you put on?

 

I went with a Michelin pilot power in 150 60 17

 

Ya know I always like to listen to you Guys no seriously

So I'm considering these in a 150 and they're good value

that would be the set for 190 bucks