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16 or 18?

Discussion in 'The Garage' started by CrabbyCustoms, Feb 1, 2020.

  1. CrabbyCustoms

    CrabbyCustoms XS650 Enthusiast XS650.com Supporter

    Morning,
    I need to order some tires and i'm having difficulty figuring out my rear rim size?

    I searched the archives and assumed I had 4.00H18-4PR - 110/90-18.
    but on further digging I noticed that some people mentioned a 16 inch - 130/90-16?

    My bike is a 77-78
    I read in a post that In 78 they made three models. The standard, the Special and the Special II. The standard had an 18 inch rear, the Special had the mag 16 inch, the Special II had an 18 inch front and 16 rear alloy.

    When I measure my rim (lip to lip) it measures 17inchs? Any idea if it's a 16in or an 18inch?

    Thanks! February 01, 2020-5.jpg February 01, 2020-3.jpg I'm trying not to ask stupid questions but I wanna order the correct size tires!
     
    Paul Sutton likes this.
  2. Machine

    Machine Race the wind Top Contributor

    Put the scale down lol. Read that 5.0-16 there on your Avon ?
    You happen to have the very rare 79' 16" aluminum rear rim there in the pic.
    -R
     
  3. CrabbyCustoms

    CrabbyCustoms XS650 Enthusiast XS650.com Supporter

    Thanks Machine! I did see the 16 but couldn't figure out why the rime measured 17?
    so I need 130/90-16? (which I can't seem to find?)

    My problem is that this huge Avon Tire won't fit under my fender? Will any tire?

    January 31, 2020-34.jpg
     
  4. Machine

    Machine Race the wind Top Contributor

    Ya, that Avon looks real wide there across the tread. You could search out a 130/90-16 but there is also a size "compromise" that has tempted me before.
    A MT90-16 Harley rear Dunlop 404 might fit ?
    I'm headed home and may have better info soon
    -R
     
    CrabbyCustoms likes this.
  5. Machine

    Machine Race the wind Top Contributor

    20191123_120843.jpg
    Here is a pic kinda showing the height difference between a Shinko 5.0-16 and a Dunlop D404 130/90-16
    Though the Dunlop D404 rear is a great tire, the D404 front has a poor reputation. I am trying out a D401 Harley front to roll with the rear D404..
     
    CrabbyCustoms likes this.
  6. CrabbyCustoms

    CrabbyCustoms XS650 Enthusiast XS650.com Supporter

    Thanks! I did find some Shinko 712's which lots of members seem to like but they are tubeless so i'm not sure how that works?

    I've always loved the Dunlop K70's but can't seem to find 130/90-16?
     
  7. Machine

    Machine Race the wind Top Contributor

    Run tubes in the Shinkos, all good
    :thumbsup:
     
    gggGary and CrabbyCustoms like this.
  8. CrabbyCustoms

    CrabbyCustoms XS650 Enthusiast XS650.com Supporter

    Done. Thank you!
     
  9. 5twins

    5twins XS650 Guru Top Contributor

    18,829
    9,635
    688
    A tubeless tire will work fine with a tube in it. That's what most of us roll on. It's very hard to find tube only tires today.
     
    gggGary and CrabbyCustoms like this.
  10. CrabbyCustoms

    CrabbyCustoms XS650 Enthusiast XS650.com Supporter

    Actually I found a Dunlop D404 nearby. So you're saying that the Dunlop D404 has a lower profile than the Shinko? definitely height is a concern with my fender.
     
  11. Machine

    Machine Race the wind Top Contributor

    20200201_094010.jpg
    Saying a Dunlop D404 130/90-16 is a shorter tire than a Shinko, or any 5.0-16.
     
    gggGary and CrabbyCustoms like this.
  12. CrabbyCustoms

    CrabbyCustoms XS650 Enthusiast XS650.com Supporter

    Perfect! I've ordered it. I was going to order the D401for the front but it has Harley stamped on it? Have you ever found it without Harley stamped on it?

    Thanks Machine for all your help!
    Screen Shot 2020-02-01 at 1.02.15 PM.png
     
  13. Machine

    Machine Race the wind Top Contributor

    ;) Nice ! This will be fun to hear more of. I think they all have "Harley Davidson" molded letters.
    Great tire choices I'm hoping as well.
    -R
     
    gggGary and CrabbyCustoms like this.
  14. 5twins

    5twins XS650 Guru Top Contributor

    18,829
    9,635
    688
    I thought the 404 was the non-Harley version of the 401? Compare tread patterns, I think you'll find them the same. My buddy has run several sets of the 404's without issues.
     
    CrabbyCustoms likes this.
  15. Machine

    Machine Race the wind Top Contributor

    Actually the "Harley" 401F is an entirely different front tire. Seen here next to the D404 I took off. See how the tread pattern direction matches the rear non Harley D404 ? It's a much better match and most likely a better tire. The tread outside edges are more like the rear 404 too.
    20200201_141308.jpg
     

    Attached Files:

    Last edited: Feb 1, 2020
    gggGary and CrabbyCustoms like this.
  16. Machine

    Machine Race the wind Top Contributor

    There, added front & rear tread pics..
     
    gggGary and CrabbyCustoms like this.
  17. Brassneck

    Brassneck XS650 Guru

    Make sure you check the front tire size...pretty sure it will be a 19" rim. I think I saw you stated 18"...which would not be correct, I don't think.
     
    Machine and CrabbyCustoms like this.
  18. CrabbyCustoms

    CrabbyCustoms XS650 Enthusiast XS650.com Supporter

    I wanted to follow up this post. I found a post that mentioned Shinko 240's as a good solution to my problems. I purchased them (Whitewalls) and they fit almost perfectly. Here they are next to the Avon MK11 5.0, the Shinko are considerably thinner and shorter.
    February 06, 2020-35.jpg

    The wheel just needs to be pushed over about 3mm. to center it under the fender. Can I just put in a spacer on one side?

    February 10, 2020-40.jpg February 10, 2020-42.jpg February 10, 2020-45.jpg
     
    Machine likes this.
  19. GLJ

    GLJ Never go faster than your guardian angle can fly. Top Contributor

    You want your rear sprocket to be inline with the countershaft sprocket. When you get the engine in check that. If the fender is not centered on the tire the fender needs to move not the rear hub. It is also possible the rim is not centered on the hub correctly.
     
    arcticXS and CrabbyCustoms like this.
  20. CrabbyCustoms

    CrabbyCustoms XS650 Enthusiast XS650.com Supporter

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