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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet - Touring Tire Sizes with Birmabright Fenders - Is it Gonna' Look Weird?
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<blockquote data-quote="Hugo Myatt" data-source="post: 21777" data-attributes="member: 99"><p>The works supplied some bikes for South Amerca with WM3 x 19 " rims on both ends. I have a Comet, a bitza, but sourced from Argentina with this set up. I also have a standard Comet with WM2 x 20" front and WM3 x 19" rear. The front tyres of both machines are fitted with Avon Speedmasters, the bitza 19 x 3.25., the standard 20 x 3.00 .I have just compared (roughly, it's damn cold in the garage) the overall tyre diameter of both front tyres and there seems to be not much difference between the two. At anyrate the 19" fills the mudguard. Then, again roughly, I measured the tyre height aspect from the rim. The 20 inch tyre is 2 1/4" and the 19" tyre is 3". According to my calculations (maths O level, failed) the overall tyre diameter of the twenty inch wheel is 24 1/2" and the 19" wheel is 25" diam. As to the handling of the bitza, I have noticed no real difference but then I am not very brave these days.</p></blockquote><p></p>
[QUOTE="Hugo Myatt, post: 21777, member: 99"] The works supplied some bikes for South Amerca with WM3 x 19 " rims on both ends. I have a Comet, a bitza, but sourced from Argentina with this set up. I also have a standard Comet with WM2 x 20" front and WM3 x 19" rear. The front tyres of both machines are fitted with Avon Speedmasters, the bitza 19 x 3.25., the standard 20 x 3.00 .I have just compared (roughly, it's damn cold in the garage) the overall tyre diameter of both front tyres and there seems to be not much difference between the two. At anyrate the 19" fills the mudguard. Then, again roughly, I measured the tyre height aspect from the rim. The 20 inch tyre is 2 1/4" and the 19" tyre is 3". According to my calculations (maths O level, failed) the overall tyre diameter of the twenty inch wheel is 24 1/2" and the 19" wheel is 25" diam. As to the handling of the bitza, I have noticed no real difference but then I am not very brave these days. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet - Touring Tire Sizes with Birmabright Fenders - Is it Gonna' Look Weird?
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