Searching for a bracket to fit a high mounted exhaust

[Mr Gazza]

Thanks for a nice clear explanation Spuggy.
To clarify my solution to my lack of shoulder bolts in the first place, here's what I made from 1" ally bar.
Inexcusable dust from a mould making project exposed by the flash! Bike hasn't been used since December and the refresh is still ongoing.









Hopefully that explains things in pictures better than a whole bunch of words (Spuggy speak )
The dims of the top hats can be pretty much generated from the original shoulder bolts and the head pattern is up to you.
Note that the actual shoulder is reduced to about 1mm all round on the 10mm top hats, so they get a bit tender!
This is a good way of making the bolt length totally adjustable ad nauseum.

Finally here's what a previous owner thought would be a good idea to form a shoulder bolt!! Also some cup washers, original and custom.

[Foggy]

Originally Posted by Mr Gazza

To clarify my solution to my lack of shoulder bolts in the first place, here's what I made from 1" ally bar.

Thanks Gazza. In the absence of tools to fabricate the longer bolts I am hoping to pursue your previous suggestion of buying another LH screw (if it is longer) and use it on the right. Problem is no dimensions are specified and they don't know themselves, they just order them from Italy. I won't know until I try it I guess. Might avoid the insulation tape solution though !

[Mr Gazza]

You already know know how long the LH screws are, you own 2.

[Foggy]

Originally Posted by Mr Gazza

You already know know how long the LH screws are, you own 2.

Yes exactly that's the plan, to try the LH side bolts on the RH side when I eventually start the work buf it won't be until after the Summer. In the meantime I was trying to get bolt dimensions to see if it's feasible.

[Foggy]

Originally Posted by Foggy

Yes exactly that's the plan, to try the LH side bolts on the RH side when I eventually start the work buf it won't be until after the Summer. In the meantime I was trying to get bolt dimensions to see if it's feasible.

Quick Update ─ after trawling the internet it seems the LH bolt is 53mm long and the RH bolt is 46mm long. Doesn't quite give me the 10mm difference I was hoping for but it depends how much spare thread there is already. I'll find out when I try it out.

[spuggy]

Originally Posted by Foggy

Quick Update ─ after trawling the internet it seems the LH bolt is 53mm long and the RH bolt is 46mm long. Doesn't quite give me the 10mm difference I was hoping for but it depends how much spare thread there is already.

You won't need longer thread if the shouldered portion is longer - 'coz you won't need the spacer if the shoulder moves it out that far. Also don't see how that helps you with the other 3 fixing points that you're also going to need to space off the frame.

There are sources for domed & countersunk "finishing" washers off-the-shelf - and countersunk stainless bolts available in a surprising (and quite pleasing) selection of lengths. Bar stock spacers & washers readily available or easily adapted with hand tools.

Doesn't seem like any real need for one-off machining. Although I often pine for access to a mid-size lathe or mill....

[Foggy]

Originally Posted by spuggy

There are sources for domed & countersunk "finishing" washers off-the-shelf - and countersunk stainless bolts available in a surprising (and quite pleasing) selection of lengths. Bar stock spacers & washers readily available or easily adapted with hand tools.

Can you recommend any sources Spuggy ?

[Mr Gazza]

Originally Posted by spuggy

You won't need longer thread if the shouldered portion is longer - 'coz you won't need the spacer if the shoulder moves it out that far. .

Sorry mate, you can't mess with the length of the shoulder as that is critical in supporting the rubber bush/silent block.
The shoulder length is 19mm, I'll get the diameter a bit later today when I open the workshop, but it will be the same as a standard Ducati shoulder bolt.

Great idea to source those bits to make up custom shoulder bolts and spacers.
I had to do the same to replace some shouldered body bolts on the other bike. They were M5 with a 2mm shoulder, so I found some ally spacers the right size from China and they work well with Titanium bolts, except I have to remember to catch the little spacer/shoulder when I take them out.

It might even work out cheaper or not much more to get a local person with a lathe to spin some top hats up from 25mm ally bar.
Dacs knows someone in Norwich and there is Hutch at HTE motorcycles in Beeston. htemotorcycles@yahoo.co.uk. they are all over the place if you look.

Alec at English Electric Motor Company in Redgrave has got a lovely lathe.