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Discussion in 'Airheads' started by violetpop, Jul 22, 2013.
I didn't even recognize it! That seat is beautiful!
The perspective makes it look a little weird, it looks like the tire will hit the sub farme.
It's different to the norm... Very unorthodox. I'm wrapped at how it turned out. This was the best picture I could find that showed the gap between frame and tyre. I can't see it being a problem.
That subby looks the dog's bo**ox, very neat and eye catching nice job.
those braces look almost horizontal - i thought the idea was to brace the headstock area to the swingarm pivot area? ( always remember that a welder mate of mine would always say : Strength in Triangles. ??
(just my 2penn'orth)
Thanks mate and I do get where you're coming from. It's hard to tell of the actual angles from all of these pictures, very deceiving. It is triangulated in a way and feels strong. The guy that welded it builds roll cages for tech inspected drag cars so I have complete faith in his work although time will tell.
I didn't realise it was your bike when you posted it on instagram!
I like what you've had done, good to build summat different.
I need to spend a few hours on mine.
All the best
Great job on the subframe, very clever design.
But would be curious if having all the seat frame loads on just the left side of the frame would have any effects (?)
just decided i need someone to build me one of those subby's in the UK
Yes this ones mine! It's easy to get lost in all the other pictures. Thanks mate, I'm very happy with it. We will also be making up new rear set brackets and getting rid of those pesky original ones. Should look the goods! How is yours going?
Thanks mate! To tell you the truth, I'm really not sure although the thickness of the metal is much stronger than the original and to the eye, it looks super heavy duty. Time will tell.
Yeah it's not going too bad, i found a battery to fit under the seat unit and am in the process of wiring it all up.
Decided to use the trailtech digital speedo and rev counter.
The big hold up at the minute is how much i'm pratting with the engine and carbs, been playing with camshafts and main jets but without the bike to test them its a bit of a wasted effort!!!
Looks like you'll not be far off having this on the road!
All the best
Sounds good man! Tell me more about these cam shafts you have been working on, how will the go with a standard engine? Maybe let me know of a combination that works.
I will be doing a top end rebuild on my engine and considering ever so slightly porting the heads. Not sure on the overall gains, not to worried about making more power just a smooth run through the rev range.
Keep me posted anyways mate!
A few parts turned up from flat racer UK a few days ago... Very happy with the quality of them, great people to deal with.
My biggest gripe was 'on track' at about 100mph the bike massively bogs down, to the point it feels like it needs to be put on reserve.
I'll be pratting about with different mainjets and maybe even a small fuel pump.
I'll email you the cam ideas
first up great work on the bike mate & I'm certainly glad to see u took my advice to buy from Motorworks, hopefully they were able to help u out with a small discount to
keep up to good work
i'm loving this thread, my only complaint is that its not happening quick enough lol
I do like that fairing. Consider to get one for my CX650 .
Your soon to be looked like this?
If I am not mistaken, my CX650 project prolongs for a year plus.
Slightly off topic, I'm converting a R65 to R45 for a sub 500 race class and have had the cam re-profiled to the 336 grind, mainly as we have a set of masters for the 247 phased cam. The R65 cam has different phasing.
To my eye ports are quite a good size on the R45/R65 heads, 36mm , same as the R90 racer I run.
" they' say the R65 motor is not as strong as the larger ones, but other than crank weights the crank is nigh on the same, as are the rods.
I suspect it was failures of the 7mm valves.
Last year I bought an R65 for $1100 and thrashed it up to redline regularly ( 100 000kms on clock)
On a twisty bit of road it was an awesome ride, my Ducati mate was very surprised.
I'd suggest 8mm valves or better than the BMW 7mm ones, get some better valve springs ( beehive) and titanium retainers.
Get the whole lot balanced and give it death.
For carbs I was thinking 32mm Dells but at this stage might use the R65 ones.
None of this has been tested but got a running R65 racer arriving next week and the 450 ( 470cc) is on the bench.