Bike porn

I love everything on this except for the bars and the brake. And the saddle angle.

i think the bars are the best thing (amongst everything else...)

So many cool things on this bike. Seat stays - mmmmm, chain stays - mmmmm and best of al, that stem - mmmmmmmmmmmmmmmmmmm.

Interesting.
Anyone know any advantages/disadvantages to this kinda frame?

I will say, props, hyper-mega strong and stiff frame, plus very shorter wheels base
cons, stability and uncomfortable for long rides

I will say, props, hyper-mega strong and stiff frame, plus very shorter wheels base
cons, stability and uncomfortable for long rides

If you look at the effective chainstay length, you'll see it's not actually a very short wheelbase.

By not having to fit the chainstays between the tyre and the chainring, however, it should be possible to make a very narrow Q-factor. It looks like the stays have been spread far enough that the cranks can be inside the 'chainstay' line. Potentialy, the BB shell width could be cut from the normal 68mm to about 30mm. O'Bree used a similar trick to get a very narrow stance on 'Old Faihful'

I will say, props, hyper-mega strong and stiff frame, plus very shorter wheels base
cons, stability and uncomfortable for long rides

Does the design really shorten the wheelbase? I'm not sure it does.
Definitely going to be stronger and stiffer with more bracing round the back offset by the extra weight of the tubes.

Does make it easy to remove the chain in one piece too, though not sure that's hugely important.

Definitely going to be stronger and stiffer with more bracing round the back offset by the extra weight of the tubes.

I wouldn't bank on it being stiffer...the bottom bracket is where you need the most stiffness....so that is where you want the most support. Normally all the tubes converge there, giving the stiffness from the triangulation of the back end.
Having the BB in the centre of the tube will decrease stiffness.
The more open rear triangle will be far more flexible, as smaller and tighter triangles are stiffest.
I'd be very surprised if adding a second triangle by using the skinny mid stays would make that back end stiffer than a regular diamond frame.
The BB having no chainstays mounted either side behind it means it has nothing to stop the twisting forces that pedalling would impose on it.

this thread deserves a proper viking burial, not the the piss poor one some of you cunts are giving it.

I wouldn't bank on it being stiffer...the bottom bracket is where you need the most stiffness....so that is where you want the most support. Normally all the tubes converge there, giving the stiffness from the triangulation of the back end.
Having the BB in the centre of the tube will decrease stiffness.
The more open rear triangle will be far more flexible, as smaller and tighter triangles are stiffest.
I'd be very surprised if adding a second triangle by using the skinny mid stays would make that back end stiffer than a regular diamond frame.
The BB having no chainstays mounted either side behind it means it has nothing to stop the twisting forces that pedalling would impose on it.

I agree with you about getting stiffness from the small triangulation in the frame, but I think that the extra lower stays combined with the higher stays would definitely increase stiffness laterally.
It also looks like the BB is set off the downtube, so that there is no compromise in that tube nor the join to the seat tube, in fact it probably has a significant piece of lugwork down where the BB is.

I'll send the picture to my Dad, he's a keen cyclist from that era, and a structural engineer he may well know what the reason for the design was.

Frame Design Info here: http://www.classiclightweights.co.uk/bikes/viking-sbu-rb.html

It also looks like the BB is set off the downtube, so that there is no compromise in that tube nor the join to the seat tube, in fact it probably has a significant piece of lugwork down where the BB is.

It is set off from the downtube...but without having the 4 point support that chainstays normally give it's still more likely to just try and rotate around the point where it's fastened to the downtube.

The rear triangle may well be stiff, but the BB won't be.

tub fail. rim win.

Love the expression on the LH riders face ooohhh faaaarrrk
Mint pic.

That´s how drops should b
http://farm4.static.flickr.com/3283/2908631371_e48f02d7d4_o.jpg

I pledge allegiance to the united states of Bianchi.

tub fail rim win ?? ... dont think so .. looks kinda broken to me ...

tub fail rim win ?? ... dont think so .. looks kinda broken to me ...

broken, but if that´s the finishing line he won by a rim.

That´s how drops should b
http://farm4.static.flickr.com/3283/2908631371_e48f02d7d4_o.jpg

Massive NNNGGGGGHHHHHHH

focale 44 is a new fixed gear french brand

looks like a...

u

not much, no.

i was actually just hoping you would follow with an N, then slowly the letters I, P, A, C and K would appear.

nevermind

Phew, another brand catering for anonymous de-stickered urban trick machines. We were running out.

the geometry look very different to the unipack thought, especially the fork rack.

why can't we have good old branding?

kazane keirin frames