Bike porn

runs away scared complicated things

Didn't BMW pioneer the use of V-brake or something?

tend to agree, it doesn't seem like a great approach. I suppose they could minimise the effect by making tolerances very low but then it may not fit over some steerers where tolerances are all to cock!

Have you thought about writing to Brooklyn?

I can't see that having the bolts there would be any less effective than having them at the back. The effort required to tighten around the steerer tube is going to be significantly more than the effort require to flex that piece of aluminium in front.

Ignoring the amount of torque that screws can exert (which, due to thread pitch, can be huge) which is going to be the bigger source of resistance there, the small hole with something in it, or the bigger hole with nothing in? I know which I think is more likely. given that the bolts are (be they at the front or back) trying to stretch that aluminium round the steerer, instead of just flexing the body of the stem.

Didn't BMW pioneer the use of V-brake or something?

Not as far as I know - I think that one of those small, mid-nineties firms (Paul, Kooka, Grafton, Machine Tech, someone like that) was making linear pull brakes a couple of years before Shimano brought them out.

When that happened, everyone transitioned - for all intents and purposes Shimano were an MTB monopoly.

I can't see that having the bolts there would be any less effective than having them at the back.

Have you ever owned a Cinelli Alter/Integralter/Angel? The stem body is immensely stiff compared with the thin walled tube which wraps around the steerer. As kerley points out, you can generate a proper clamping force as long as the steerer tube fits precisely into the clamp bore, because you then don't have to move anything very far to generate the required hoop stress, but in my experience that fit would need to be of the order of a light interference fit to make it work. Meanwhile, you're bending the whole body of the stem to generate your clamping force, which is going to deform to front clamp, and then you tighten the front clamp to stop your bars from creaking and that feeds back into the hoop stress of the steerer clamp. The only way to make it work reliably across the range of steerer tube OD tolerance is to make the extension of the stem deliberately flexible from side to side, which is pretty much precisely what you'd try to avoid when designing a stem.

Obviously, the stem will be adequate, because it turns out that you have to try even harder than that to completely fuck up cycle component design to the point where it becomes unusable, as witness supermarket BSOs, but it will necessarily be less stiff than a well designed stem of equal weight or heavier than a well designed stem of equal stiffness. There is clearly a market for novelty stems where looks totally dominate the design over function, and this is one of those.

Didn't BMW pioneer the use of V-brake or something?

blimey, squabs. do some homework

I remember Scott was saying something about it, but I can't remember much.

found it -

After two years of constant use both in the city and up to 120 mile+ rides i reckon i'm in a better position to give an honest opinion than you after your month.
Brooklyn machine works didn't invent their rep....they earned it...through making some of the best and most influential products in the bike industry.
Shimano didn't invent v-brakes, BMW did...the race link remains one of the best downhill frames ever made...the gangsta has had countless imitators.

I'm blinded by nothing...but i know what makes a good bike...and my brooklyn will outlast any langster.

all along I thought we were discussing these

what is this is ?

a sit-up-and-beg bicycle.

Er, maybe it's because I'm new, but I'm confused -there seems a lot of gears of some of these bikes for a fixed gear site?!

Nobody rides fixed gear bikes anymore, silly.....so 2007, hipster-roadie is whats in, didn't you get the memo?

futuristic lo pro ? lo pro for the 22nd century

Nobody rides fixed gear bikes anymore, silly.....so 2007, hipster-roadie is whats in, didn't you get the memo?

teenslain is still reading it and forgot to pass it on.

futuristic lo pro ?

Yes, because with an ageing population people will think lo-pro means something with the bars only a little bit above the saddle.

Yes, because with an ageing population people will think lo-pro means something with the bars only a little bit above the saddle.

i lol'd at this.

Columbus Max Tubing, Framesize 64cm, Filled brazen, Made in Gb--Monster Monostay......

Okay, seriously, where is this frame?! I want it.

Bad.

blimey, squabs. do some homework

hehe

Okay, seriously, where is this frame?! I want it. Bad.

http://www.flickr.com/photos/bike_punx/3202391508/in/set-72157623345020444/

ridden by a monster

Track Frame handmade by o. Jaekel and ridden by him at the olympic games back in the 80is---full columbus record tubing

hehe, cheers Max

He's right though, your bike is porn. And I love the beausage marks on it.

A bike seat whose adapted form reflects that of its owner's posterior

http://www.urbandictionary.com/define.php?term=Beausage

thanks. x

Max why did you post 3 shit bikes? Disappointed in you.