C15 Forks

Started by Morleydog, 08 May, 2020, 14:08

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Morleydog

Thanks Chaz. I guess that is the mystery solved. Bottom yoke from a B25, which I assume must have slightly larger diameter forks and hence bottom yoke. Bushes / shim it is then.

chaz

I can find lengths but not many diameters, Ive got a list of most Japanese but not many Brit tubes. the C15 and B40 seem to use the same parts, the B25 and B44 bigger bikes look like they use a different size

MICKREEVES

I used to cut some thin metal sheet ( Alloy) To shim the gap.
Mick

Morleydog


Blackthou

Hi MorleyD,

I tried to get a dimension for you this afternoon but without a fair bit of a stripdown it wasn't possible to obtain a repeatable reading. Sounds like you've deicded the way forward. I'm sure shim will be just as good, quicker and cheaper unless you were going to make something yourself?

Morleydog

No problem mate.

I will sort something. Do you think a 1.5mm shim will be pliable enough to bend around the small diameter?

Blackthou

Absolutely. If you can get a piece of metal the diameter of your stanchion and practice on that it will give you an idea, or just practise wrapping a bit around the stachion. It will confirm the length which you could also do with a piece of string. Once clamped in place it wil be secure.

Incidentally, you can buy plastic shim stock ingraded thicknesses, much easier to cut and work with.

Morleydog

Just to round this topic off. I bought some steel tube with 1mm wall thickness. Cut the bushes to length and then cut lengthways down the weld, to get rid of it. Filed the edges up and it fits like a glove. I am so glad I didnt ride much further than the 20 miles or so that I did before the strip-down, with the forks flapping about.
Thanks everyone for your help.