Honda-SOHC
SOHC.co.uk Forums => CB500/550 => Topic started by: shurety2 on December 22, 2021, 06:19:57 PM
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hi out there,i was wondering if there is an alternative to the standard CB550f swinging arm or is it best to stick with the standard one.
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Natural choice as alternative is Dresda, but really hard to scource nowadays.
Thread on here that discussed Dresda and another fitment http://www.sohc.co.uk/index.php?topic=18149.0 that may be of interest.
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Unless you are racingthe standard one is plenty strong enough, as long as not rusted through that is
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many thanks for the replies
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I installed a needle bearing kit in my 74' CB550K swingarm and the motion is silky smooth. Along with a set of Hagon shocks it works great.
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It appears to me that the original bearings on this era of frames from Japan are the root cause of the "hinge in the middle" analogy often quoted disparigingly about them.
If there's much difference in one shock absorber to the other (fairly easy to get) then with fast compression it starts to twist the arm severely enough to pinch the pivot tube bearing alignment through torsional distortion :o effectively seizing the arm and causing significant displacement of the rear wheel track relative to the front. Hence that going in two directions at once feel the rider gets especially when you meet a dip mid corner at any significant pace.
Quite possibly one of the best improvements you can make to the original frame is to change these bearings to roller/taper/bronze type that won't pinch like the original materials.
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Natural choice as alternative is Dresda, but really hard to scource nowadays.
Thread on here that discussed Dresda and another fitment http://www.sohc.co.uk/index.php?topic=18149.0 that may be of interest.
Yes Dresda arms getting very thin on the ground
I was very lucky as been hunting for one for over a year for my CB400F and then as if by magic one popped up on eBay so snapped it up there and then
(https://uploads.tapatalk-cdn.com/20211223/20f90041b55dd701d1d12e38c1a2dc6b.jpg)
Good price too as it was nice condition and good price at £180, and complete with all the taper bearings pivot bolt and wheel pulls etc
Good luck with your search
Best wishes Al
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