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Anorak's Corner / Gear Lever Linkage Rose Joint possible alternative CB250RSA also 400/4 etc
« on: June 04, 2024, 11:20:57 PM »
My 1980 CB250 RSA gear change linkage 'rose' joints were completely fooked and I am restoring this bike on a budget (albeit one which already totals to probably considerably more than it's worth ..but hey ho. 
Anyway I bought the parts below ... the cheapo rose joints were far to big so I chopped them to the correct length and trimmed down the diameter and profile of the round bit to be the same size as the Honda originals. I still need to tidy up the profile a bit and also zinc plate them ... I am thinking of two thin O-rings and a bolt and nut through the eyelet to seal the joint before plating. This is deffo one for home plating as I don't know of any commercial platers, who would entertain doing it.
The replacement boots look fairly decent and didn't tear on my test-out assembly, to ascertain if they are rubbish or not. Obviously, I will have to use a fixing for the normally peened over pin used on the lever parts but that's no big deal.
Joint before modification.
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Joint after modification and replacement rubber boot.
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Test assembled with Rubber boot
[ Guests cannot view attachments ]
CB250RSA Boot Kit
[ Guests cannot view attachments ]
Rose Joints on Ebay (L&R hand thread m6)
[ Guests cannot view attachments ]

Anyway I bought the parts below ... the cheapo rose joints were far to big so I chopped them to the correct length and trimmed down the diameter and profile of the round bit to be the same size as the Honda originals. I still need to tidy up the profile a bit and also zinc plate them ... I am thinking of two thin O-rings and a bolt and nut through the eyelet to seal the joint before plating. This is deffo one for home plating as I don't know of any commercial platers, who would entertain doing it.
The replacement boots look fairly decent and didn't tear on my test-out assembly, to ascertain if they are rubbish or not. Obviously, I will have to use a fixing for the normally peened over pin used on the lever parts but that's no big deal.
Joint before modification.
[ Guests cannot view attachments ]
Joint after modification and replacement rubber boot.
[ Guests cannot view attachments ]
Test assembled with Rubber boot
[ Guests cannot view attachments ]
CB250RSA Boot Kit
[ Guests cannot view attachments ]
Rose Joints on Ebay (L&R hand thread m6)
[ Guests cannot view attachments ]

