I have two of these saddles one on my M20 rigid and one on my M21 plunger.
I am puzzled on how these fit to the frame top tube. I looked at the Lycett types and these are very straight forward but the Wassell ones don't have a fixed front mounting, just a large inverted U bracket, which when bolted on shows the saddle up higher than the tank.
The M20's previous owner just wired the seat to the front mounting tube, so he probably couldn't work it out either, and I don't have the U bracket.
Any advice or help would be appreciated.
Thanks
is it one like this
Yes! That's the one! However, the springs are different. Your picture shows the long front attachment.
My avatar shows the seat sitting rather high on the bike.
Thanks
Most of these seats seem to be wrong. I cut the rear frame and reposition the springs.
these seats have not been available for a while .
would it not fit on the lower subframe bolt visible? lower down, angled back might make it fit/look better.
I suspect that as common with most aftermarket parts made to pattern its one size fits all. In some cases Ive received items with multiple brackets supplied.
I hate waste so I think it best to replace the U shape bracket and make either a |\ one or a |/ one with 2 holes on the wider part. As I understand it the narrow front end should only move a little and the back springs do all the work. To replace these with lycette would be £130 approx and then I would have to pass the rejects on to some other poor soul.
Thanks folks for your observations always nice to get a fresh pair of eyes on the problem. These two are the only single seaters I have owned all the others are dual seaters
Quote from: DANFINN on 16 Nov, 2022, 20:52
Yes! That's the one! However, the springs are different. Your picture shows the long front attachment.
My avatar shows the seat sitting rather high on the bike.
Thanks
The front U bracket is far too long. The front of the saddle should sit in the cutaway at the rear of the tank.
is it possible the bolt through the bracket goes under the frame tube, not through it?
No, The seat bolts to the top on frame just behind the tank mountings
You can see how the previous owner "wired the seat" in position. I want a more professional fixing
When I rebuilt my 1940 WM20, I obtained some plates from someone on the Dutch M20 forum then just bolted them up loosely before deciding on the best position. I would say most modern saddles are 'universal' so it's a case of making or buying plates to suit.
I think I got mine off ebay, Phoenix motorcycles. Probably the cheaper end of the market but looks good and works well. To fit it to the original attachment points of my B33, I fabricated 2 pairs of triangular brackets front and rear to achieve the correct position relative to the tank and the correct angle of the seat whilst maintaining vertical springs. A bit of a fiddle first with cardboard templates, then with thin aluminium sheet before transferring to decent gauge steel. The second photo under the saddle is rather dark, but you should be able to see the attachment points and the rough shape of the brackets. The third photo shows the rear brackets which put the spring attachment slightly forward of the saddle frame to straighten up the springs. It's a matter of getting the saddle in the correct position to suit you and the bike and making brackets to suit.