Frame strengthening and swingarm extension

[Crapaud]

Obviously, I'd love to be able to use the services of either HPN or Richie Moore to get my off-road racer airhead up and running. But I have two major problems.

Firstly, I'm a very impatient git and I want thing done immediately if not sooner. I could never wait 6months/2 years for workto be done.

Secondly, as an ex-Accountant from Jersey, I am careful with my money ("like a Scotchman with the generosity removed").

So I found a local chap who is an ex-Navy engineer who is an expert welder etc. He has taken the drive shaft from my R65 and extended it by 4 inches/ 100 mm and also modified the twin sided swingarm. He has also expertly braced up the frame around the head stock. I was amazed at the quality of his work as it looks better than anything else I have ever seen. He has cut and welded the swingarm so that it looks like it was done at the BMW factory.

I had to pay for all his time constructing the precise jig he needed to ensure all measurements were aligned etc. What this means of course is that if anyone else wants to use his expertise, then I have already paid the set up costs.

I have invited him to Gentlemens Wee-kend so that anyone interested can see his work on my bike and can commission him to do similar work if required.

We are also working on an interesting mono-shock conversion using a twin shock swingarm but I will not post details until we have finalised all the range of adjustments and are happy with everything.

 

[Kenny]

You youngsters are always impatient

Where's the bloody photos ?

 

[Timpo]

What was the tube spec he used for the +100mm extension of the swingarm?
I've just done a frame for RickA, including making a jig to match a HPN mono swinger sample loaned from Crazyivan.
What have you decided on for the upper shock mounts, I am still unsure what I will use on my two frames I'm doing next, one twin shock and one mono........ the fabricated brackets look the business, but the original mounts are cute castings.

 

[Crapaud]

What was the tube spec he used for the +100mm extension of the swingarm?
I've just done a frame for RickA, including making a jig to match a HPN mono swinger sample loaned from Crazyivan.
What have you decided on for the upper shock mounts, I am still unsure what I will use on my two frames I'm doing next, one twin shock and one mono........ the fabricated brackets look the business, but the original mounts are cute castings.

Not sure about the tube spec, I'll have to ask him when I get back. For the top shock mount, we are working on having an adjustable mounting point to be able to fine tune the ride height etc. Hard to explain, I'll post up photos at end of month. He didn't think much of my original design as he felt it would not be strong enough so he is redesigning it himself.

 

[peepingtom]

sounds brilliant look forward to seeing it

 

[(RIP) maverick]

 

[Timpo]

Not sure about the tube spec, I'll have to ask him when I get back. For the top shock mount, we are working on having an adjustable mounting point to be able to fine tune the ride height etc. Hard to explain, I'll post up photos at end of month. He didn't think much of my original design as he felt it would not be strong enough so he is redesigning it himself.

I'm looking at using 2.5" x 10swg CDS steel tube.