F: Frame Rear seat stays friction

Bill Thomas

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Bill, I have never seen Paul with a pillion passenger, so most of the weight the seat is carrying is at the front mounts, I can't help but feel that with the suspension on full bump with moderately heavy pillion passenger, that something might give/collapse.
I would not say Paul was wrong, Just the looks !, But I have been known to do some strange things to Vin's.
Cheers Bill.
 

vibrac

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Bill, I have never seen Paul with a pillion passenger, so most of the weight the seat is carrying is at the front mounts, I can't help but feel that with the suspension on full bump with moderately heavy pillion passenger, that something might give/collapse.
It was that worry and the post last month showing the snapped front seat stays that prompted me to add the right angled stays to my seat support see picture above #16 (the connection to the front suspension bolt is made with a spherical union eye bolt as the tube comes in at an angle )with that fitted plus the new front fork geometry, avon dampers (coil over rear) and a 'big seat' that is 4" longer (from the spares company)it should make for a comfortable ride for TBPPINW (for those who remember moose brained Smith)
Those pot holes are set to get bigger- be prepared!
 

greg brillus

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Doesn't look like you know the mod I was referring to. It used struts like the originals but the long shank section had what appears to be like a small shock absorber or inner and outer tubular sleeves like the rear spring boxes only way smaller and perhaps with a stiff spring on the inside. Like small suspension units to absorb some of the downward force. There was a Shadow for sale here in Aussie recently that had a pair of them on the rear.
 

Bill Thomas

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Doesn't look like you know the mod I was referring to. It used struts like the originals but the long shank section had what appears to be like a small shock absorber or inner and outer tubular sleeves like the rear spring boxes only way smaller and perhaps with a stiff spring on the inside. Like small suspension units to absorb some of the downward force. There was a Shadow for sale here in Aussie recently that had a pair of them on the rear.
I was showing you what Peter said No' 23, I know the mod you say, The Late Pat Cole from Portsmouth had them for as long as I can remember, A big lump of a thing, I was going to do the same, But lost my way !!, As I do !. Cheers Bill.
 

Peter Holmes

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Gregg, I am familiar with them, I think they originated in the USA, I would imagine that like most undamped springs they will absorb some or most of the initial shock, albeit a little bouncy thereafter, they looked a bit like the sort of spring units you get in washing machines to support the drum.
 

davidd

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They were made by Gene Aucott:

Seat Stays on B.GIF


David
 

davidd

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Bill,

No, that is a lot more complicated. Gene's was a valve spring, or something like that, on a platform inside the castings below:
Gene Aucott Seat Spring  4.jpg


David
 
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