SOHC.co.uk Forums > CB500/550

Front end bouncy

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Johnny4428:
There was someone else on here had some issues with the front end, think it was OrcadeIan. Don’t think he ever resolved the issue!

DomP:
Murf is onto something, its definitely not seated right which is my fault as I rebuilt the wheel myself.  If got it off, lubricated it with 50/50 washing up liquid and water but it just wont pop on the rim even if I over inflate.  Tge tyre is max 42psi so im not sure i should go any higher than 50 just to get it on.  Any thoughts?

K2-K6:
Think the "max" setting is recommended for usage and load rating.

You can usually go up to 70/80 psi to get them seated if necessary.

Lubricating the bead, I use silicone grease very, very, very sparingly smeared around entire tyre bead to do this. They'll usually pop on at about 25psi then.

Silicone is used as mould release in their manufacture.

DomP:
Ive had another go but its not quite right, disheartened so I decided to change the front tyre on my Daytona 675.   Breaking the bead was tough but mounting the new tyre was dead simple popped on the rim before videos even reached the standard tyre pressure.

I think the powdercoat on my cb550 rim might be just enough thickness to make it a tight fit, I'll try upping the psi a bit see if it goes on

K2-K6:
Yes, agree it could be powdercoat thickness contributing to that.

Had a spare alloy wheel refinished recently (my son's car) with a immaculate final finish, but quite substantial in comparison to factory finish and dimension.

Similar diameter to bikes at 18" but 245mm width though  .... used silicone grease to fit it without tyre levers at all to not damage the surface. Sat up on the bead at about 30 psi, although a whopping great BONG  :) its quite tight on there.

Plain soap doesn't seem to let them "creep" up over the J bead form as easily as silicone.

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