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Very Hot Topic (More than 25 Replies) tires/tubes for my R65 (Read 1483 times)
Barry
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Re: tires/tubes for my R65
Reply #30 - 03/21/14 at 04:10:58
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As I have a detachable 90 deg converter for the valve stem I'm not sure a fixed one would be my choice. They do seem to be widely used without problems though.

Just out of curiosity I put some numbers into a centrifugal calculator.

If we assume maximum 1300 wheel rpm (approx 100 MPH) and the angled portion of the valve stem weighs 10 grams (wild guess) the max. bending force on the stem is  4.3 KG or 9.5 lbs.
  

Barry Cheshire, England 79 R45
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livingdeadhead
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Re: tires/tubes for my R65
Reply #31 - 03/21/14 at 10:51:43
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actually its because theyre only 's' rated 112 mph , or so stuart at national told me, seen lots of good stuuff about them online , so theyre probably going to stop making them any minute! lol
  
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georgesgiralt
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Re: tires/tubes for my R65
Reply #32 - 03/21/14 at 15:04:54
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I'm fanatical with Heidenau tires. Cheap, handle very very well and in S speed rating are quite cheap. Only drawback is that they're stiff and mounting them is a PITA. But if the mounting is done by a pro .... who cares ?
As the thread is thick, I bet they last long... will report in a couple of years...
  
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Semper Gumby
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Re: tires/tubes for my R65
Reply #33 - 03/22/14 at 19:09:08
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Looks like a late model R100 tank.  Keep that - it holds more fuel and you get a second petcock on the RH side the rest of us don't have.
  

Bill Gould  1980/03 R65 When at first you don't succeed....Moo!
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Dave
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Re: tires/tubes for my R65
Reply #34 - 03/23/14 at 17:57:27
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I live in an area with lots of boats and get alcohol free gas at the local marina. They say it's 90 octane.
Dave
  

Wavy Dave
1986 R65 monoshock
1964 Lambretta Li scooter (purchased new)
1947 Salsbury 85 Super scooter
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