Bombus Speedshop

Bombus Speedshop
Wrenchin' without supervision since the seventies...

Sunday, December 6, 2015

Spacing

So the weekend came again and then it was business as usual in the speedshop.
One of the things I fiddled with this weekend was to get the rear wheel spacing just right.
Not so easy as it sounds. Not just the spacers for the hub will have attention but also the sprocket and brakedisc spacing.
My friend Viking Cycles had a spare rear hub I could use to ease up the work.
And he also arrived when it was time to measure up the alignment of the sprocket.
With a long ruler and many hard words to each other we finally came to a verdict.
*Hehe*
Also the brakedisc spacing issue was later solved.
Now some final spacers for the sprocket and a touch with the lathe on the brake side spacer will do the trick.
My dog Kurt supervised today's work in the speedshop as usual.


Project thoughts

Mind wonder when projects develops.....
I have quite a good pace in the speedshop but with all my plans there will take way to much time to get it on the road.
Thought's about getting it road ready first and do upgrades winters to come instead.
So first it will be without turbo and with the trusty CV carb and the plan is to just get a registration and get some miles before the project continues.
Just to get a registration is a huge journey anyway with at least two technical inspections first.
One soon, early 2016?  where the main construction, welds, solutions, materials eg. are checked on a non functional bike.
And then when the bike is ready with all fuel, electrics, seat... yes everything, then it´s time for final inspection.
When that's OK there there is just the registration inspection left and after that you have a vehicle you built yourself.

Saturday, December 5, 2015

Wheelies

Finally I had some build time of so I could do some wheelie training.
Naah, just needed a better angle to do some more spotwelds on the kickstand mount.
How it went....? Not my best welding accomplishments in the speedshop to be honest, but it was worth a try anyway.

Saturday, November 28, 2015

Mockup

Time to finaly get the girliebike on its own feet.
Must say it looks awesome.
The enthusiasm dip i had earlier this autumn is long gone now.
This gonna be good for real !!!



Wheels

So the wheels came back from the rubber man.
Looks awesome, 17" & 21" was a wise choice.
Time for some real mockup now....?


Monday, November 23, 2015

Monday, November 16, 2015

More pipes

So the pipework continues.
I left the idea with thick wall piping...for now.
This time I'm cutting up OEM Harley pipes instead.
The other big job with the pipes except positioning the turbos is to step them down from 1 3/4" to 1", what that the turbos have as inlet.
Did some calculation and came up with I have to shrink the circumference from 139,5mm to 79,8 mm.
To manage that I did 8 triangular slots 7,5 mm wide at the top.
This is just a measuring prototype and the final pipes must have some more massage first for the right angles out of the heads to position the turbos.
Buts that's another post......
The 1 3/4" pipe i started with.

The 1 3/4" pipe with slots.

The stepped down end ready for weld.

And the finished testpiece next to the flange.

Think I´m on the right track here, but I have not abandoned the idea with more rigid thick wall piping.
Time will tell wich alternative will walk away as the winner.