SOHC.co.uk Forums > CB500/550

Steering stem interchange

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glhonda:
Oddjob. Since you're using the 550f top plate, it sounds like this may be looking for. Are the spacers still used/required? And is the entire triple interchangeable, or is the stem length/diameter different?

Oddjob:
No the spacers are not used on the 550F, the bottom yoke is also interchangeable, I don't normally mention it as you then lose the steering lock if using on a 500 frame but that's not a problem with you. Everything between the 500 and 550 in that area is interchangeable, most of my front end is 550 except the bottom yoke as that as I said has the steering lock on it.

The middle bolt is the same BTW but the end bolts are special, flanged chrome 7mm (with 10mm head) and a flanged chromed nut as well.

This looks suitable and cheap.

Needs some paint though.

https://www.ebay.co.uk/itm/365421692123?_skw=cb550f+yokes&itmmeta=01JW8NPVBD74SSZ64PSEKZ6728&hash=item5514d484db:g:94cAAOSwwlZknjSB&itmprp=enc%3AAQAKAAAA0FkggFvd1GGDu0w3yXCmi1dMBxvffxWfymVEne5gFx2YCGzR9qUmjxxRDocIK5hxU7BvIvapGngIBvHg5r4hAMt0Wxo0dUZ0BWELDa1JLneZRSEGphjPDvJV%2BU0XCTKGD2VyGd3alrvzVXps1IqxMi1%2BJiTMT9CcrJcwigpj2PQvLKYRI5fz16DVzMt48VazqQR%2BCebUsTPV3NXUFlbwIA9WLybScDk%2FPYGnkOsFi%2BYQJ8%2Bh6c6rOrbXESLOdQ%2FusvwOzAJQyihjNq2CwaKR4Sk%3D%7Ctkp%3ABk9SR4i225XiZQ

glhonda:
Thanks for all your helpful info and quick responses. Much appreciated!

glhonda:
Oddjob, good call. I bought this steering stem assembly off ebay. Listed as '76 honda CB550F. This one has spacers and uses "normal" bolts. The mount tabs for the clock bracket are different, but pertinent to my application. The castings are at least 20% thicker than the stock cb500 K2. Thanks. This should work much better than the original.

Oddjob:
Significantly beefed up the walls of the tube clamps haven’t they. Never noticed that tbh but fits with what I’d have expected Honda to do to deal with the problem, clearly they’ve used a different mould for the 550F top yoke.

Any differences you can spot between the bottom yokes beside the steering lock not being on there?

Glad it worked out and the forum has some new info on it now.

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