Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: toucheturtle on June 22, 2015, 07:47:13 PM

Title: Tyres
Post by: toucheturtle on June 22, 2015, 07:47:13 PM

My CB500 was fitted with Avon Roadrunners rear-120/90-18 and front 100/90-19. I changed the rear for a Roadrider 120/90-18 without checking what the recommended fit was. It's now time to replace the front. The handling has always been fine so am wondering whether to go for the Roadrider 100/90-19. The recommend is 3.25x19" which is avaliable as an AM26 but not sure how much difference there is between the two tyres. It seems the AM26s are slightly smaller than the older AM20s, can anyone confirm this?

Title: Re: Tyres
Post by: Johnwebley on June 22, 2015, 07:57:54 PM

I use the Avons,

  3.25 x 19 front

  4.00 x 18 rear

  run them at 27 front,and 32 rear,

  they always feel great for me,last time I used Dunlops,but they didn't give me the same confidence,


   don't fit over wide tyres,,3.25/90 front is wide enough,and 4,00/100 rear is bigger than standard,but work well

Title: Re: Tyres
Post by: toucheturtle on June 22, 2015, 09:26:14 PM

How much difference is there between a 100/90-19 and a 3.25x19"?

Title: Re: Tyres
Post by: SteveD CB500K0 on June 22, 2015, 10:04:51 PM

100mm is 3.94"


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Title: Re: Tyres
Post by: SteveD CB500K0 on June 22, 2015, 10:07:11 PM

A 90/90 would be closer (3.25 = 82.6mm)


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Title: Re: Tyres
Post by: petersy on June 23, 2015, 08:30:33 AM

I think that a vintage bike with modern looking tyres doesn't look right, so I like to stay with the classic tyres of the era but which use modern day rubber compounds, so I use the Avon Speedmaster MKll 3.00 x 19 on the front and Avon Safety Mileage 4.00 x 18 on the rear.

Got mine here.....

http://www.tyretectrading.co.uk/avon-am6-3-00-19-front.html

http://www.tyretectrading.co.uk/avon-am7-4-00-18-rear.html

Title: Re: Tyres
Post by: Chris400F on June 23, 2015, 08:10:16 PM

Quote from: petersy on June 23, 2015, 08:30:33 AM

I think that a vintage bike with modern looking tyres doesn't look right, so I like to stay with the classic tyres of the era but which use modern day rubber compounds, so I use the Avon Speedmaster MKll 3.00 x 19 on the front and Avon Safety Mileage 4.00 x 18 on the rear.

I guess it's a matter of personal preference.
Back in the day (mid to late 70's) the first thing many buyers did was to ditch the standard fit Japanese rubber and fit a pair of TT100's or Avon Roadrunners.
As tyres like the Roadrider are pretty much the modern equivalent of these then personally I'm happy to use them and happy with the look.

Title: Re: Tyres
Post by: Ashdowner on June 25, 2015, 10:25:00 AM

I've got Pirelli MT65's on mine and I wonder if the tread pattern is the reason that I've got a pretty impressive front wheel shimmy

Title: Re: Tyres
Post by: matthewmosse on June 25, 2015, 01:32:49 PM

I ran mt65 pirellis on a few of my bikes. I prefer Avon tyres overall but am happy to run any cheap part worns. I am pleased as punch with a maxis tyre on my ntv at the moment for handing. I was on Bridgestones before. Not as well mannered. The cb500 I pretty well always run the Avon sm mk11 rears. Avon fronts too. Which pattern dependant on sidecar fittment

Title: Re: Tyres
Post by: toucheturtle on June 28, 2015, 11:39:00 AM

Gone for 3.25x19 £55 on ebay