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Subject: motorcycle tire on 8N

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JMOR    Posted 07-23-2018 at 08:26:31 [URL] [DELETE]        [Reply] [No Email]  
  • motorcycle tire on 8N
  • Bought 8N a few years back & it has motorcycle tires on it & has functioned fine until weather cracks resulted in failure on one. So, hey, it worked a long time & used MC tires are free, so I got more. Problem. Got on rim but when pressurized it won't fully seat at bead. It is as though the tire is some fraction of an inch too small than the 19 inch rim. Proper Ford N tire was 4 X 19 as was the removed MC tire and the "new" MC tire is 90/110 X 19. 90mm=3.54 inch and 110mm=4.33 inch. It seems that 19 inch isn't 19 inch? Experiences or ideas?

    Tim Daley(MI)    Posted 07-25-2018 at 09:33:59 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Jesse-
    I have a set of good Firestone 4 x 19 three rib front tires I can let you have. Shipping from Michigan to Texas ???

    Tim Daley(MI)

    JMOR    Posted 07-25-2018 at 09:37:03 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Offer appreciated, but I'm afraid shipping would be a killer. Used MC tires are free and currently rolling on the 8N

    dave#1    Posted 07-23-2018 at 22:22:43 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Better yet, I was using 19" space saver spare tires on my 8n, working at the salvage yard I could get as many as I wanted, Quite easy to find ones that were new/never used.

    John in Mich    Posted 07-23-2018 at 16:31:02 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • I have also installed a couple of mc tires on OLD tractor rims with similar problem. BUT, I have also experienced the problem with used 19" 3 rib tractor tires and with NEW 19" 3 rib tires on OLD rims. The common denominator is OLD rims.

    Gaspump    Posted 07-23-2018 at 13:38:21 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • I use Crisco as a lube on my old Ford tractors. Works great and is not a sealer so they remove easier. Just more gubment intervention that tires are metric in height and with but rim sizes are in inches. What is the reasoning?

    TheOldHokie    Posted 07-24-2018 at 09:03:53 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Metric tire section size designations on inch rims was an industry initiative not a government mandate. Started in the mid 70's with passenger car tires and has expanded from there.

    A small number of European manufacturers (e.g. BMW, Ferrari) experimented briefly with metric rim diameters but that never caught on. Tires for those old wheels are exceedingly hard to come by.

    TOH

    Gaspump    Posted 07-24-2018 at 12:13:03 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Yeah, part of the same ill and misdirected planning that also lead to metric fasteners etc. The metric changeover proposed and urged by the good old guvment never happened did it

    TheOldHokie    Posted 07-24-2018 at 15:43:38 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Absolutely nothing wrong with the metric system. The manufacturing world is more metric than imperial and will only continue to move in that direction. Again, not because of any government mandate but because industry finds it preferable. I expect the US will be mostly metric in another 50 years.

    TOH
    I

    Gaspump    Posted 07-24-2018 at 17:35:51 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Never mentioned any problem with it but the way the US gubmint was trying to make the full change over was totally absurd. Having spent years in the marine and heavy const. field we would have welcomed the change but not on their terms and time frame. Typical pols, clueless!

    JMOR    Posted 07-24-2018 at 10:16:31 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • The French seem to have always been in a contest with themselves to build the weirdest of weird. Did you get lucky enough to have those $2000+ tires on your turbo-Bird?

    TheOldHokie    Posted 07-24-2018 at 11:05:02 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • I have not had the pleasure. If I have the history correct it was Michelin that in the early 70's pioneered a new wheel design in pursuit of lower profile and stiffer sidewall. Their TRX and TRD tires were incompatible with the SAE J rim and bead standards so they opted to make the tires with a metric diameter to prevent mounting them on standard wheels. BMW and SAAB used them up through the late 90's and most car owners ditched them for standard wheels long ago. Wikipedia summed it up nicely - the Betamax of the tire industry.

    TOH

    Tony C    Posted 07-23-2018 at 09:53:38 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N


  • What is the differences in the diametric measurements?

    TUbeless or tube type? Did it start and just not seat completely or can't you get it to take air?

    SO.........Maybe clean rim really well, slather tire soap or non grit hand cleaner on both. DOn't be bashful. Put the tire and wheel under a bench or a jacked up wheel on a tractor etc. (safety first, yada yada.) Use a stick on inflator, stand back a couple of yards and air it up. How high is up to you. You get the idea.

    I had to resort to extreme measures to get a replacement tire to seat. Spit shined bead surfaces on the rim, tire soap and a lot of pressure. Took a couple of tries. I aired it, left it and did a few things around the shop. Took a few minutes for that satisfying "TWANG." It seated. The tires on mine have a rib along the outer edge of the bead and it looks a little like the tire is not completely seated. I guarantee it is.

    Tony

    K.LaRue-VA    Posted 07-23-2018 at 08:59:38 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Motorcycle tires might work ok on a tractor, with tubes. It's not like mileage is going to be an issue. I would be a little worried about load rating. The thorns around my place would probably go right thru them.

    Tim Daley(MI)    Posted 07-23-2018 at 09:28:11 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Just don't plan on making any jumps over Snake River Canyon... ; >)

    TPD

    Tim Daley(MI)    Posted 07-23-2018 at 08:49:55 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • The original OEM N-SERIES rims were 3 x 19, the tires were the 4 x 19 single rib style, but you already knew this. You're using tubes aren't you? If not, try tubes. Strange that they give dimensions of width in metric and diameter in inch format. 19" equals 482.60mm. Is that marked anywhere? I've read of VW rims being used too. Are you ding the work or a tire dealer/shop?

    Tim Daley(MI)

    JMOR    Posted 07-23-2018 at 09:27:53 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • marked metric width & 19 inches diameter. Yes, I too, thought strange. Tire catalog cross references 4.00 X 19 to 'modern' 90/110 X 19 size. Used tube & mounted by self with spoons. Raised to 60 PSI to try to make bead seat & still no go. Seems to run OK, but looks like a clown's cart. Just drive and don't look, I guess. Picture is what ran on it for over 10 years. They never looked good enough to hold air, but did.

    Tony    Posted 07-23-2018 at 09:59:07 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Hi Tim,

    Ready to go hill climbing.

    tc

    Tim    Posted 07-23-2018 at 09:31:30 [URL] [DELETE]        [Reply] [No Email]  
  • Re: motorcycle tire on 8N
  • Did you use some goop on the beads at install? Boy, switch out rears to turf tires and you'll have a cool machine...

    TPD

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