SOHC.co.uk Forums > CB500/550
550 F2 started!
Laverdaroo:
You've totally lost me ken, in the HONDA manual, it says RIM size of the ones I posted, is that not right then?
why they cant just say 180x55, 17 or similar god only knows.
Not keen on the vellocette ones as they arent valanced, If I have to shell out otll be these but only at a push.......the dear ones ;D
https://www.central-wheel.co.uk/honda-excel-valanced-rim.html
Oddjob:
If you still have the original rims or even any rim off a Honda look on the rim itself, they are stamped with the size it is, https://www.ebay.co.uk/itm/275435929210?hash=item402142be7a:g:PI4AAOSwGQZjCO3N&amdata=enc%3AAQAHAAAAoHH5A1oEM2L2xmp5mHAGrXD1Wz0tOMCGFiSXnQ2FDDE3KUkr5zUstpaZVwgn0I9aaGNy%2B7ZQfQCq2isq9zleFN8u2f300YeJt1JwQ5FcGp0WJrga9zi2p70Sq%2BXneaeQqSWefZQ73Us7YzdHySuIQtjzi7XxNW1j7HKopbnATVjDkXHoPw%2Fzcs970NWtMrXKVOW2KCKpOGNrNoDUVWmhnow%3D%7Ctkp%3ABk9SR5LPityYYQ 8th pic down and you can see it.
The rims must match the tyres, you need a bigger width or section rim in order to properly support a wider tyre. The max tyre width they recommended for the standard 1.85 width rim was around 4.10 and even that was considered to be pushing it, some would say 3.60. I used to run a 4.25/85 x 18 tyre on a standard 1.85 rear rim and it was ok but when fully banked over the tyre used to flex upwards as the tyre moved because the rim wasn't really wide enough. When I fitted the Lester mag wheels they were both 2.15 and I was fine to run a 4.10 front and my favourite 4.25/85 rear. They were great and I was able to get insane angles of bank, which was just what I was after then as I was proddie racing the 500 back then.
If like me then your an edge of the tyre merchant and corners are what you live for then get wider rims.
Sesman:
Roo. If it’s any help I went for s/s rims 19†WM2 Front and 18†WM3 rear. I wasn’t brave enough to go 18†front as I was fitting the standard front guard and there wasn’t sufficient supporting opinion on handling/stability effects to persuade me otherwise. I used Avon tyres and I think they look just fine. Handling seems ok.
Oddjob:
Just measured my Lester rims width Roo. From edge to edge they are exactly 70mm. That's the outside edge not the inside. At the bottom of the trough? it looks to be 2 1/4 inches. Does that help identify your existing rims?
Laverdaroo:
--- Quote from: Oddjob on November 30, 2022, 02:33:54 PM ---Just measured my Lester rims width Roo. From edge to edge they are exactly 70mm. That's the outside edge not the inside. At the bottom of the trough? it looks to be 2 1/4 inches. Does that help identify your existing rims?
--- End quote ---
Cheers Phil and yes that might Ken, I’m in there tonight as the LHG is working til midnight so I get a pass to bugger about outside
First task is to get on those rims so I’ll pop a moan up later
Cheers pal you’re a good un
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