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Thread: 1971 r60/5 rear tire replacement

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  1. #1
    yappo
    Guest

    1971 r60/5 rear tire replacement

    the bike is hauling a sidecar.i would like to replace the rear tire with something designed for hack use.can any sidecarista's reccomend a good brand.the bike never is used off road.

  2. #2
    angysdad
    Guest
    what size tire?

  3. #3
    Registered User
    Join Date
    Mar 2003
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    Port Angeles WA
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    Over the years there have been special "sidecar" tires with a square profile, in both 18" and 19". The idea is that the square profile will wear better. I currently have a Metzeler "Block K" 4.00 x 18 on my R100 rig. But I'm running a Kenda 19" on the front. It's an oval profile, so it's lower than a 3:25 x 19.

    My experience with sidecar tires is that they are old technology, bias ply, and very flexible due to the tall sidewalls. The tire flex doesn't help handling. And the old tire compounds don't necessarily provide better mileage than a contemporary bike tire.

    I suggest finding some cheap 4.00 x 18 or preferably 120/80 x 18 tires, and investing in some tire tools.

    pmdave

  4. #4
    There is also the evil of running a car tire on the rear.

    The hack tire on my rig is interchangeable w/ the front tire of the bike.
    A rolling spare if you will...
    I'm currently running a block tire on the hack. It won't fit under the fender so that option is gone for a bit.
    I have a motorcycle tire currently on the rear of the bike. I'm looking to renew the car tire on the rear prior to the rally.
    I have two rear rims. One w/ a bike tire the other w/ a car tire for when the tub is off I switch.

  5. #5
    Matter of fact... I renewed it today...

    A R195/75/15...
    Attached Images Attached Images

  6. #6
    Quote Originally Posted by pmdave View Post
    ...I suggest finding some cheap 4.00 x 18 or preferably 120/80 x 18 tires, and investing in some tire tools.
    First... Sorry for the hijack...
    I would follow this advice from Dave.

    I'm thinking of going to a 17"X5.5" RS rear wheel so I can get into some dualsport tires for winter travel...

  7. #7
    Registered User
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    Mar 2003
    Location
    Port Angeles WA
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    There may be limited clearance for a wider tire. And there are lots of knobbies in 18" sizes. For my "dual sport" R100/Ural, I have alloy rims laced with heavy guage ss spokes, 18" front and rear. I run an 18" "rear" tire backwards on the front. I reserve the serious knobbies for excursions on technical roads, although knobs wear much better on pavement than I would have predicted.

    I also prefer a round or preferably oval section tire on the front. A flat profile tire, especially a car tire, causes steering problems. When the side of the flat tread contacts the side of a groove or pavement "rut" it suddenly steers the wheel in that direction. IMHO the maximum width of a front tire, even with trail reduction, is 135.

    See you at the rally in Redmond.

    pmdave

  8. #8
    Quote Originally Posted by pmdave View Post
    I also prefer a round or preferably oval section tire on the front.
    A flat profile tire, especially a car tire, causes steering problems.
    When the side of the flat tread contacts the side of a groove or pavement "rut" it suddenly steers the wheel in that direction.
    How does that translate to the Can-Am?
    Would m/c tires improve handling of one?

  9. #9
    Registered User
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    Mar 2003
    Location
    Port Angeles WA
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    1,429
    Quote Originally Posted by itshimself View Post
    the bike is hauling a sidecar.i would like to replace the rear tire with something designed for hack use.can any sidecarista's reccomend a good brand.the bike never is used off road.
    One of the joys of hacking is being able to drift down a gravel road at speed. Some knobs are helpful--except for grated bridge decks.

    When I rigged up my R100/Ural for desert duty, I installed some Italian rubber with a tread pattern for about 60% dirt/40% street. It could have used more aggressive knobbies for the dirt.

    Eventually I decided to run the dual sport tires on the street to wear off the remaining rubber. I was amazed that the semi-knobby wore about as well on the street as a conventional "street" tire. Now I'm less conservative, and have a genuine dirt knobby mounted on one of my wheels. It wouldn't bother me to run it on pavement once in a while.

    I knew some Australians who shipped their R1150 GSs to BC and traveled to Alaska, Colorado, etc. A couple of the machines had serious knobbies, and at the end of the trip there was still acceptable rubber left.

    pmdave

  10. #10
    John D'oh
    Join Date
    Aug 2006
    Location
    Close to Fort Worth Texas
    Posts
    611

    Ymmv...

    I bought an R80 G/S back in 81 and saved two rear tires from it to mount on the sidecar motorcycle front and rear (both 18") with a round profile street tire on the sidecar. I was impressed with the handling in what little rain came down in NM and AZ and I expected good results in the dirt of course but the street handling was excellent. I got a good number of miles from the remaining tread. I used up several sets of 18" Enduro style tires in that manner.

    From my sketch book...
    Last edited by Na Cl K9; 08-08-2012 at 04:06 PM.

  11. #11
    Quote Originally Posted by s09rwmb View Post
    From my sketch book...
    You got anymore in this vein?

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