Author Topic: 18x4.25 rear rim , what size tire should i look at ?  (Read 1806 times)

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Offline LetoMoto

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18x4.25 rear rim , what size tire should i look at ?
« on: April 10, 2014, 06:35:28 PM »
hi ! i received a new rim today for my 74 CB750 . i planned on lacing it to my rear hub and use the same tire but after a quick look i figured it would just stretch the tire . it is a 4.00 - 18 Avon . it is also the first time i mess with motorcycle tire sizes.

Will it work or i need something wider ? What should i look for ? i know it is gonna be thight in the factory swingarm but i can easily cut some room and weld it smooth.

Any input appreciated !


Offline Stev-o

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Re: 18x4.25 rear rim , what size tire should i look at ?
« Reply #1 on: April 10, 2014, 06:40:43 PM »
4" was stock tire size on a 2.15" rim.  That rim looks super wide.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline LetoMoto

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Re: 18x4.25 rear rim , what size tire should i look at ?
« Reply #2 on: April 10, 2014, 10:17:47 PM »
the rim  is almost twice as wide . would the shape of the tire be allright mounted on the wider rim ? i just dont wanna lose my time mounting it hehe