3C replical pillion seat for 3CL frames

Mingh

Hero member
hi,

does anyone know wether these exist? I'm looking for a 3C style dual seat, but my frame is with side hinges. I know it exists in single seat with a hump, but i'd like a pillion version

Cheers
 
Cam, that's a standard 3CL/Jota seat.
I think Mingh is talking about a 3C seat like in this pic.
I would also be interested in a hinging 3C-style seat.
 

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Oops, yes you're right. I should have had my reading glasses on.

Wouldn't be difficult to modify a fixed mount seat pan. I did it recently on a Honda (converted fixed mount to side hinge) using a side latch assembly I found on ebay.
You'd need to weld the hinge bases and latch gubbins onto the 3C frame.

Cheers,
Cam
 
I have a 3CL frame I want to fit a 3C-style seat to, so the hinge brackets are all there.
 
Grant said:
I have a 3CL frame I want to fit a 3C-style seat to, so the hinge brackets are all there.

That's what i'm trying to do. Adapting a 3C seat to take side hinges would be an alternative, if someone can confirm that the seat pan of the 3C fits with the 3CL frame, meaning that the side hinges are essentially the only difference. If the subframe is shaped differently, it won't work.
I've upholstered the pillion 3CL seat i got off you Grant, so that's no longer a possible base to create one from.
 
I fitted a 3C seat to a 3CL frame, but did so by making 3C-type brackets and welding them on to the 3CL frame, so the basic seat base is compatible with a 3CL frame ok.
If you welded hinges on to a 3C seat base then you would also have to fit the post that fits into the seat lock mechanism.

May be easier to trim a 3CL seat base into a 3C shape then shape the foam and seat cover to make a 3C style seat.
 
Gotta find a real 3C seat first.....

Rare as rocking horse manure, especially good ones where the pan hasn't turned to ferrous oxide.

Basis dimensions are the same for both frames, differences are the hinges and lock opposed to the tangs on the early frames.  The rear seat fixing point is present on the later frames, it was used to mount the grab rail.

piet
 
3C seat on Fleabay UK right now - http://www.ebay.co.uk/itm/Genuine-Laverda-Early-3C-Seat-/130591194936?pt=UK_Motorcycle_Parts&hash=item1e67d77f38
 
I used to tour on my 3C with a passenger. No seat-related injuries were reported...
 
I picked up a hitchhiker on the way to Bathurst outside Brisbane at Easter once on my 3c. I was actually going to Sydney, so I dropped him off somewhere near Newcastle. He didn't complain about the seat, but he got a free ride for about 800 km so maybe he was practicing personal skills...

Ken
 
sfcpiet said:
The rear seat fixing point is present on the later frames, it was used to mount the grab rail.

piet

So what yuo're saying is that an original 3C seat would fit straight on a 3CL frame provided you remove the grab rail?
 
Not sure.
The 3C seat is narrower so may not be in the same position relative to the hinge positions on the frame.
Then you have to fabricate a closure pin to fit the seat lock.
I think this is why they made the 3CL seat wider.
Of course anything is possible given enough time, money and talent...
 
Mingh,

The basic frame dimensions are the same.  The rear fixing point is accessable once the grab rail is removed, correct.  You will need to remove the lock assembly from the frame and add the front mounting tangs, quite simple actually.

Converting the 3C seat to hinges is definitely more challenging.   As Grant has pointed out, the 3CL seat is a bit wider in order to accomodate the hinges and the lock underneath.  Cut the 3C pan lengthwise, widen it and fit the hinges, you'll have almost everybody scratching their heads...

piet
 
i'm in the exact same position, but have the added issue of my seat having a fiberglass pan (one year only i gather)!
I'm wondering if glassing in a lock post welded on to a 3 inch or so washer would be strong enough??
since i've seen quite a few of the posts busted off on the steel pans I'm thinking they get worked pretty hare...
thoughts?

on another note.. if I go with converting the frame to accept the bolt on does anyone know where to get thumb screws like the SFC 750 side panel ones? I think those would be a lot slicker than a couple of regular bolts..

 
Tough luck with the thumb screws... they are M7 thread iIrc, and the frame lug is M8!

Don't think a bonded lock post will last long, no matter how big the washer is.

piet
 
I once just shoved the bolt-on seat onto my 3c and headed off for a quick fang around the block to test whatever it was I'd been working on, the brackets fit firmly onto the frame and I thought it would be fine. The first time I whacked the throttle wide open the seat slid backwards then proceeded to try to fall off sideways. Scared the shit out of me, but my mates back at the house almost died laughing when I got back. With the seat sideways.
The moral being, don't compromise on attaching the seat. Use quality bolts with Nyloc nuts, double check them, and don't be tempted to try thumb screws because they look cool! :D :D

Ken
 
so i tried an original 3C seat. The fit is not great.it fits well over the grabrail tabs, but
-it's one cm short at the tank,
-as piet mentioned it's too narrow. while that looks nice, it doesn't clear the hinges.

Before putting the hacksaw in it, i'll first see if no one else can be helped with this seat. I'll have to work out a seat based on a native 3CL seat pan. Playing around with foam and covers will be easier than altering the pan.

So if anyone's up for a 3C seat in good condition?
 
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