GSX1100ET rear tyre question

[RickC]

Hi all,

I'm chipping away at my 7/11 build, I want to keep it sort of original at this stage with the Snowflake pattern wheels.

I picked up a rear wheel from a 1992 GSX400S which has the snowflake pattern but it's a 4" rim not 3.5" (Thanks John for the advice) it's on the way over from the UK.

I was probably planning on putting Battleaxes on it but they only go out to a 150mm rear, this is based on my memory of tyres from 30 years ago.

I think with the 4 inch rim I should be able to get a 160 or 170mm rear on perhaps an Avon or Metzler.

Does anyone know how wide I can go on a 4" rim before I get clearance issues?

I'd be happy for any tyre advice, keeping the 19" on the front.

Cheers,

Rick

[gs7_11]

A 150 is as far as I can go.....160 would touch the chain.

That's with the front sprocket spaced by about 6mm.

[mark35gun]

Not sure about the 170 tyre, it might go on the rim but not well i think from memory, it might upset the already piss poor handling, either way i think 170 is too big for a 4" rim

[RickC]

Thanks guys, 

That saved me a bit of messing around.

Cheers,

Rick

[TonyTumbleweed]

evening ... I have standard arm in my ET but 18" 5.5" DYMAG classics. At the moment just ok with a 160 but close to the chain even with the front  offset sprocket. No frame mods . 150 probably better choice next time for me. cheers Tony

Edited May 26, 2020 by TonyTumbleweed
spilling

[Dezza]

4" rim - 150, 170; 4.5" rim - 160; 5.5" rim - 170,180; 6" rim - 180,190+. 5" rim (17" diam) - you have a 250 race bike wheel. Put it on the right bike and use the correct race tyre....

I was told most of this by whoever ran Sharples Tyres when they were a bike tyre specialists (dunno if they are still going).