Race chassis

[cotswold]

Land of the ugly tailpiece.

Long lenses and no soap could also be added

[koba]

Long lenses and no soap could also be added

Long lenses?

[cotswold]

Long lenses?

Where you been? frog with a camera and Willies Princess.....

[koba]

Where you been? frog with a camera and Willies Princess.....

Right!
I don't really follow the news, I'd rather read the ESE thread than the paper.

I suspected it may be a general stereotype that wogs were all perverts.

It was a wog bike rather than a frog bike.

[husaberg]

RSW250 rear caliper and bracket is it wrong to want to take it to bed.

[husaberg]

54.3 wheelbase
25 degrees castor
98mm trail.

Read this wow. This guy is an artist
http://www.2strokeworld.com/forum/in...p?topic=6802.0

[chrisc]

Anyone have any other interesting articles or discussion around monocoques?

Here's a few piovaticcis


and the write up:
wide open moto

I really want to build a similar 125 in the future. Why is it that we don't see more monocoque frames around?

[husaberg]

Got a write up on the herron suzi somewhere.

Still Love this though.

[Moooools]

RSW250 rear caliper and bracket is it wrong to want to take it to bed.

Ha. We have 8 of those at the workshop. 4 are brand new. We may as well carry a spare set aye?

[husaberg]

http://www.2strokeworld.com/forum/in...topic=6802.195

[husaberg]

Ha. We have 8 of those at the workshop. 4 are brand new. We may as well carry a spare set aye?

So do you take one home occasionally....like........When the misses is away.............

[Grumph]

Anyone have any other interesting articles or discussion around monocoques?

I really want to build a similar 125 in the future. Why is it that we don't see more monocoque frames around?

Fucked if I know - if you have access to a folder and a pop rivet gun you can make one. Mocking up in folded cardboard should be a piece of piss too. Much easier and less toxic than working in carbon fiber too.

[Moooools]

Anyone have any other interesting articles or discussion around monocoques?


I really want to build a similar 125 in the future. Why is it that we don't see more monocoque frames around?

The structural value of a monocoque is mostly in the design freedom that they allow. There isn't much point in building a monocoque that is essentially a beam as a beam will be just as good and much cheaper. Also monocoques are designed to be loaded in plane (shear) so getting your head around the mounting the swingarm and head stock can be tricky.

I would attack it by starting with a Free body diagram and with load for maximum cornering load with a good safety factor. Then assuming you have no access to high end analytical software and CAD, start by designing a simple beam or tube monocoque with the core thickness and skin thickness you will need, and then make geometry changes from there while avoiding stress raisers such as sharp bends.

That is about as much as I know on the matter. The long and short is that it is pretty difficult to do it right.

[husaberg]

The structural value of a monocoque is mostly in the design freedom that they allow. There isn't much point in building a monocoque that is essentially a beam as a beam will be just as good and much cheaper. Also monocoques are designed to be loaded in plane (shear) so getting your head around the mounting the swingarm and head stock can be tricky.

I would attack it by starting with a Free body diagram and with load for maximum cornering load with a good safety factor. Then assuming you have no access to high end analytical software and CAD, start by designing a simple beam or tube monocoque with the core thickness and skin thickness you will need, and then make geometry changes from there while avoiding stress raisers such as sharp bends.

That is about as much as I know on the matter. The long and short is that it is pretty difficult to do it right.

Monoques went out of fashion for a couple of reasons.
hard to repair, ugly (generally unfashionable)
Plus the biggie they are f-ing hard to get out stuff like engines carbs etc.

If i was to do one it would be out of M board (if you can still get it) riveted like the Ducati a few pages back.

The year is 1980
Thew material is CIBA Geigy M board which is a aluminum honey backed combed composite.
It predates both the Heron Suzuki commonly wrongly credited and the NZ Hiscock Suzuki which was earlier and the 250 Armstrong by at least 2 years.
So what is it? for the correct answer there could be a virtual chocky fish in it?No cheating though

But this one is far prettier but f the work that would take......

[husaberg]

Norton JPS Monoque.
BTW it was Stainless steel not sure why?
Made quite a nice lampshade i understand for Croxford.
I think it was presented with the remains of one he had crashed with inscribed something along the lines of a month to build 3 seconds to destroy.

The access to the carbs is actually excellent... plugs and cylinder head maybe not so much.......
Peter Williams one of best ever development engineers.
It was later replaced by a space frame then for the cosworth twin .....Well a "no frame" as the engine was quite a lump






Most of the pics are from here http://www.italian.sakura.ne.jp/bad_toys/norton/it shows the space frame and the cosworth in various guises including the BOTT quantel