Author Topic: 120/70B-21 front tire…what’s the B stand for?  (Read 194 times)

Cerino2000

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120/70B-21 front tire…what’s the B stand for?
« on: Dec 22, 2021, 03:55:37 pm »
Bike has about 7700 miles and it’s due for a front tire. I like the metzeler tires but all the ones I’m finding have a B in the aspect ratio. The factory tire does not. What’s the difference?

RoadStarRaider

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    Fiddles

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    Re: 120/70B-21 front tire…what’s the B stand for?
    « Reply #1 on: Dec 22, 2021, 04:05:39 pm »
    Bias ply
    V&H 2into1, Bullet cowl, Full Wrap front Fender, Ultimate  seat, Barons Tach, lowering bones and progressive spring, Ivan's flash, K&N filter with open air box, Avon Cobra Chrome  tires

    Cerino2000

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    Re: 120/70B-21 front tire…what’s the B stand for?
    « Reply #2 on: Dec 22, 2021, 08:25:22 pm »
    Thx.

    The factory Metzeler is a radial, correct? Is a bias ply ok for these bikes or do most stick with a radial? Anyone have an educated opinion?