five and a half inch rim
- scooble
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five and a half inch rim
I already have an RGV250P swingarm and RS250 wheel (4.5 inch) in my KR, however, I was wondering if it was possible to fit a 5.5 inch rear rim or is this too big??
- SHimmer45
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- Premix Junkie
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i wouldnt have thought it neccersary to go any bigger than 4.5 inch, that should take a 150/160 section tyre. any bigger is just for looking at and i think it would look a bit silly.
there must be a technical reason why racers dont use huge rear tyres, maybe it effects the turn in speed for corners or something like that but i'm guessing.
there must be a technical reason why racers dont use huge rear tyres, maybe it effects the turn in speed for corners or something like that but i'm guessing.
- scooble
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- the-elf
- Avgas Sniffer
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The SM tyres that we use for racing are a 160 profile. A standard 160 will fit a 4.5" rim without any problems however the SM are recommended to be used with a 5" rim. I proved that by running off the edge of the front tyre at Snetterton and I still had a 4mm wide chicken line on the rear. MJ uses a 5" dymag rear and his rear tyre profile is a lot better.
Also I think that a 5" rim is the maximum you can fit into a KR. Plus you will need to put a kink into the rear brake brace or it will rub on the edge of the tyre when it gets warm. Personnaly I will be getting a 5" rim wheel made up sometime.
Also I think that a 5" rim is the maximum you can fit into a KR. Plus you will need to put a kink into the rear brake brace or it will rub on the edge of the tyre when it gets warm. Personnaly I will be getting a 5" rim wheel made up sometime.
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- Premix Junkie
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As Elf says I use a 5" as that is the minimum I think you can get away with on a 160. Any less and the tyre pinches and you end up with less contact patch.
In a KR swinging arm 5.25" is about the biggest I have seen.
In a Suzuki arm 5.5" should be ok. Chain run will be close also as Elf says I have put a curve in the torque arm to clear the tyre.
In a KR swinging arm 5.25" is about the biggest I have seen.
In a Suzuki arm 5.5" should be ok. Chain run will be close also as Elf says I have put a curve in the torque arm to clear the tyre.