SS frame drawing

griff851

Does anyone have a full dimensional drawing of a 70's SS frame, and not the one from the manual? A guy I know wants to start building frames.
He's too lazy to work all the rest of the figures out.

brad black

what's wrong with the one in the manual?

griff851

The guy thats doing it has collected data from somewhere else. I think Falloons book. Any way it conficts with the manuals measurement. So he is after another referance. Me and a mate are going to use a laser level in the coming weeks and measure up his Verlicci frame and his SS frame, and send him the data. Then he's going to do a redesign and send me a frame in Chromoly, to fit my squarecase and bits to. Then i get to go see how it works. Once it passes, and I haven't died due to catostrophic frame failure, he's going to make them and sell them. I think he's aiming for 5kg frames. Must be fun living in the 70's.😁

Tony_Ducati

griff851 wroteThe guy thats doing it has collected data from somewhere else. I think Falloons book. Any way it conficts with the manuals measurement. So he is after another referance. Me and a mate are going to use a laser level in the coming weeks and measure up his Verlicci frame and his SS frame, and send him the data. Then he's going to do a redesign and send me a frame in Chromoly, to fit my squarecase and bits to. Then i get to go see how it works. Once it passes, and I haven't died due to catostrophic frame failure, he's going to make them and sell them. I think he's aiming for 5kg frames. Must be fun living in the 70's.😁

Just spotted this .... 5 kilogram bevel frames are impossible. Trust me on this.

corsa

5kgs

5kgs?
That's pretty light, my TT2 frame is 7 or 8Kgs!!!

Corsa.

Weed

Tony_Ducati wroteJust spotted this .... 5 kilogram bevel frames are impossible. Trust me on this.

What about Ti.

sp2 boy

Ti, the material that they have banned from being used as handlebars, wheel and swingarm spindles for motorcycle motorsport.

According to the FIM data;

25.01 The use of titanium in the construction of the frame, the front forks, the handlebars, the swinging arms, the swinging arm spindles and the wheel
spindles is forbidden.
The use of light alloys for wheel spindles is also forbidden (except for Trial
motorcycles).
The use of titanium alloy nuts and bolts is allowed.
Titanium test to be performed at trackside:
25.01.1 Magnetic test (titanium is not magnetic).
25.01.2 3% nitric acid test (Titanium does not react. If metal is steel, the
drop will leave a black spot).
25.01.3 Specific mass of titanium alloys 4,5-5, of steel 7,5-8,7 can be
ascertained by weighing the part and measuring its volume in a calibrated glass
vessel filled by water (intake valve, rocker, connecting rod, etc.)

sp2 boy

Here is a more up to date version of the FIM regs in pdf format.

http://www.qmmf.com/uploads/QIRRCH%2...202_new%20.pdf

griff851

Those rules on Ti make sense. The stuff just snaps when it fails. On important stuff you want it to tear so it can give you a chance if you have a failure.

Tony_Ducati

Weed wroteWhat about Ti.

given that Titanium weighs about 60% that of steel, 5 kilos is feasible, but you'd want to use it on a greenframe, not a Darmah!