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motorcyle tires on A wheels?

Discussion in 'The Hokey Ass Message Board' started by north coast greaser, Feb 11, 2006.

  1. Cronk Design
    Joined: Nov 1, 2005
    Posts: 449

    Cronk Design
    Member
    from Minnesota

    motorcylce tires on 21" Model A wheels, can it be done? how safe is it?

    thanks
    ncg
     
  2. 47bob
    Joined: Oct 28, 2005
    Posts: 625

    47bob
    Member

    As long as the tire isn't too narrow for the wheel they should be ok. "T" buckets had motorcycle tires, dragsters had them, road race cars didn't.
    Bob
     
  3. As long as you don't pay more than regular tires. you can buy 4.25x21 or 19s, for cars with flat tread profile, if you want smaller the only problem is braking and turning footprint is smaller.
     
  4. I have 5-10X16" Harley dresser tires on my A roadster on 48 ford wheels.[car weighs 2,340lbs]
    I would not recommend it to you.
    Its ok goin straightline, in dry weather......:D ,but that's about all.
    It also is cutting ya very close to being in excess of their maximum weight capacity. 1,435lb[pair]=frt of mine weighed -1,240lb.
     
  5. coupeHEAD
    Joined: Dec 19, 2002
    Posts: 1,159

    coupeHEAD
    Member

    Motorcycle tires don't have the sidewall strength of regular car tires. When you turn they can fold under the rim on you. I know they did it to me, pretty scary. Also dragsters go straight and don't turn, so they don't experience that side force. I don't recommend it!
     
  6. Bugman
    Joined: Nov 17, 2001
    Posts: 3,483

    Bugman
    Member

    Not avalible in 21", but the 16" Harley Police tires(Dunlops I believe) have a much thicker sidewall than standard dresser tires. I'd still check the weight rating on them though.
     
  7. racer-steve
    Joined: Feb 9, 2006
    Posts: 8

    racer-steve
    Member

    We have run motorcycle tires on 1930's-40's sprint cars on the front with no problems. Steve
     
  8. bcarlson
    Joined: Jul 21, 2005
    Posts: 935

    bcarlson
    Member

    NCG, shoot me an email tomorrow, and I'll ask our tech guys to have a look at some cycle tires... we've only got about 50,000 of 'em... :) Do you have a guess as to the dimensions you're looking for?

    Ben
     
  9. gas4blood
    Joined: Nov 19, 2005
    Posts: 787

    gas4blood
    Member
    from Kansas

    I'd have to say stay away from 21" mc tires on A rims. The mc tires don't come much bigger than 3.25x21 as I recall. That is a lot smaller than the A tire. For profiling at low speeds, OK. For show, OK. Another thing to consider is that they might look too small on that rim. Those 21" bike tires are skinny! Pick one up and check the sidewall thickness. It'll scare ya. :eek: I would say to err on the side of saftey. There are a variety of tread patterns available in the correct size for the A rim. Go for those, they still look skinny without looking cartoonish. Some folks went into 16" tires, those are a different beast altogether.

    My opinion: Don't do it. You have people that feel you are important and valuable to have around.
     
  10. 48fordnut
    Joined: Nov 4, 2005
    Posts: 4,215

    48fordnut
    Member Emeritus

    i have 16 m/c tires on my anglia wheels on my fed. it worked in the 50s also. same wheels
     
  11. cleverlever
    Joined: Sep 16, 2005
    Posts: 65

    cleverlever
    Member

    I don't like the idea for safety reasons but understand it would look great.

    However to put things in perspective we used to run tires with 4 ply sidewalls and most tires today have 1 ply sidewalls. And We wonder why vehicles are prone to roll overs if the tires are low on air? Alloy wheels are more likely to leak than steel wheels. That problem could be resolved with inner tubes.

    Some things from the Ol Skool were actually safer than what we do today
     
  12. Squablow
    Joined: Apr 26, 2005
    Posts: 18,499

    Squablow
    Member

    Not sure if this is what you're looking for, but about 6 months ago I was asking around about 21" tires and Corky Coker chimed in to tell me that he had 21" Denman's for $58 apiece. I didn't see those on his website but apparently he has 'em. I'm betting that's cheaper than most motorcycle tires, not sure about 19" ones but I bet they're availible cheap, and they're the right size and tread pattern.

    I'm betting the bike tires would work but it'll be a lot of weight on them and they're gonna look funny with the rounded tread pattern. Good for mockups and around the block test drives though. Before I had tires for my '40 Chrysler, I used 16" space saver spare tires on my original rims. They fit good and got the job done until new tires arrived.
     
  13. Flatman
    Joined: Dec 20, 2005
    Posts: 1,975

    Flatman
    Member

    Weight's not the only issue with bike tires. The contact patch when upright is very small. When turning, bike tires are designed to lay over on the side to increase the contact patch, thus traction is increased when cornering. You might find it pushes a bit too much in the turns :D I've got a 21" front on my Softail, and I take the corners very carefully.

    Flatman
     
  14. Fullblast
    Joined: Jan 6, 2004
    Posts: 930

    Fullblast
    Member

    $58 each, thats cheaper than my Metzler's on my bike/
     
  15. gas4blood
    Joined: Nov 19, 2005
    Posts: 787

    gas4blood
    Member
    from Kansas

    Hey, guys, with all due respect, he's talking about 21" tires, not 16" tires. The 16" tires are much heavier construction, and many have flat tread. The 21" tires are flimsy, thin walled things. They are completely unsuitable for a car. Several folks have pointed out the fact that they have very small contact patches. Even if you have front brakes, you won't be able to stop with them. In a panic stop from speed, I think the 21" tires would have a good chance of wearing through and then you are on rims :eek: in a bad situation. They will lock up way too easy in a stop. They will wash out in a turn taken with a bit of vigor, and you will go straight into whatever the car is pointed at, not where the tires are aimed. I won't say no one has ever done skinny mc tires on the front, but it has never been and never will be the safe way to go. I used to run them on choppers I built, and I could lock the front tire at speed so easy it was amazing. They required care in fast turns, and ****ed when it was wet. Putting them on a car only amplifies the problem. I am building a bike now, and it will have a fairly wide 18" or 19" tire on the front. I am addicted to vehicles that turn and stop when and how I want them to. OK, enough of my rant. gas4blood 200,000+ miles on motorcycles
     
  16. Cronk Design
    Joined: Nov 1, 2005
    Posts: 449

    Cronk Design
    Member
    from Minnesota

    thanks for all the input, good and bad.

    the reason i asked if it would work is because i seen a narrowed bucket T running model A wires with AVON cycle tires. the tires look like they have a flat tread design on them. plus i was looking in an old Dennis Kirk catalog and seen that the AVON tires are only around $30 a peice and i am on a tight budget.

    thanks to everyone who has responded. i do value my life a little, so its good to know that they wont work out. plus if i can get car tires for $59 bucks a peice, maybe that would be the best route.

    thanks
    ncg
     
  17. gas4blood
    Joined: Nov 19, 2005
    Posts: 787

    gas4blood
    Member
    from Kansas

    thanks to everyone who has responded. i do value my life a little, so its good to know that they wont work out. plus if i can get car tires for $59 bucks a peice, maybe that would be the best route.


    Good decision! By the way, I have seen Avons that look flat, but when aired up are as round as a baseball. I always look out for flat tread tires 'cuz I like sidecars, which work best with a flat tread.
     
  18. Squablow
    Joined: Apr 26, 2005
    Posts: 18,499

    Squablow
    Member

    Corky Coker is actually a HAMB member and he chimed in when I was discussing 21" tires for my Model T. That was maybe 7 or 8 months ago, so chances are he's still selling them, and for that, you can't go wrong.
     
  19. If you decide to go with 16" wheels check out the 5.00/16 Indian m/c tires Coker sells. Pretty neat! I guess as far as safety goes they would be OK if you are always aware of them (dont do anything stupid or drive too hard on corners).
    -Dean
     
  20. bcarlson
    Joined: Jul 21, 2005
    Posts: 935

    bcarlson
    Member


    NCG, even with my employee discount, the 21" I bought for my Triumph back a couple years was close to $100... (and yes, it was an Avon). Cheapest one we sell now, looks to be $74.99

    Ben
     
  21. boo
    Joined: Jul 6, 2005
    Posts: 580

    boo
    Member
    from stuart,fl.

    been runnin 5:00x16 coker dual white wall bike tires for 5 years on my flathead track rdst. rims are 3"" wide 1937 wide 5's from a v8-60 car. no problems......
     
  22. Corky Coker
    Joined: May 25, 2005
    Posts: 74

    Corky Coker
    Member
    from Tennessee

    Sorry I have not chimed back in for a while boys.... been out on the road. The cheapest tire we have now is a Universal brand imported for $65. ea. They are available in 440/450-21 and also the 475/500-19 and have a Firestone style tread. You can see them on our website. We can bring them to an event this year too and save you the freight if you like....or we can shoot em out by FedEX ground.

    I would only use motorcycle tires when you want that look of a rounded profile, otherwise the construction is different for p***enger car tires than motorcycle tires.

    All the best!

    Corky

     
  23. Cronk Design
    Joined: Nov 1, 2005
    Posts: 449

    Cronk Design
    Member
    from Minnesota

    thanks corky~
    i will see what kind of money i have when i get my check from uncle sam. if i do get them i would be at "Back to the 50's" in St.Paul

    thanks



     

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