Bike porn

Homemade carbon 29er DH bike.

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Homemade carbon 29er DH bike.

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'Homemade' might be pushing it a little...he's been making and selling bikes for years. :]

'Homemade' might be pushing it a little...he's been making and selling bikes for years. :]

yeah, at home ;)

Its an old link TBH. Love the wrinkly headtube.
http://www.littermag.com/techno/bcd29er/1.htm

Finally someone that might be able to shed some light on this...

When snowboarding I seem to be able to go faster than alot of my mates, could never figure out whether it was my weight or board, I thought it was my weight, often using the phrase "gravity is my friend" however they debated that items of equal density will accelerate at the same rate etc and that whatever weight advantage would be counteracted by lack of aerodynamics.

So what is it? I also wondered if in a small way being heavier would compact the snow/ice harder thus creating less resistance between board and snow?

I am not a scientist.

I too am faster than my fellow boarders, but of equal or less weight and height. I put it down to my board being fucking quick. (Ride Timeless) Not my fatness.

Rolling mass is a bit different tho, I guess a bigger ball of snow rolls further and faster than a small one down a hill right? Something to do with momentum and stored / collected energy?

So the bigger rider could have a higher momentum gain culminating in a higher acceleration? and speed?

So the bigger rider could have a higher momentum gain culminating in a higher acceleration? and speed?

No, it's much simpler than that. If you just scale up a body, the mass (and therefore force pushing it down the hill) tends to rise as the cube of the scale, but the cross section (and therefore aerodynamic drag) tends to rise only as the square. So, if I'm 10% bigger than you, I might be 30% heavier but only have 20% more drag at a given speed. Terminal velocity is the speed at which the force pushing me down hill (weight) balances the force holding me back (about 90% aerodynamic drag at 40mph), so it will be higher for the fat bloke.

SCIENCE. Square to cubed. Touch. What about Skydivers then? Do FAT skydivers have a higher terminal velocity and arrive at it quicker?

Really? With a Miche Supertype post flirting with the insertion line and a cheap Stronglight headset?

i see where your coming from but its still handsome.

32 spokes radial = very shit

look out your window, you should see a very distant tree. aim at that and JOG ON.

Apologies if its a pea

nice GT

^^ it has a hole in the middle of cranks! AND 32 spokes radial which = very shit!

is that a lugged colnago fork?

detail porn.

and another GT (big photo)
http://s3.amazonaws.com/data.tumblr.com/tumblr_l699x05dCr1qaopbco1_1280.jpg?AWSAccessKeyId=0RYTHV9YYQ4W5Q3HQMG2&Expires=1288263150&Signature=Q5xxQOCcduAZKhmg2bUOz7pkmV8%3D

SCIENCE. Square to cubed. Touch. What about Skydivers then? Do FAT skydivers have a higher terminal velocity and arrive at it quicker?

divers do use weights to even up velocities of the group. you go faster if you are relaxed too.

divers do use weights to even up velocities of the group. you go faster if you are relaxed too.

really? why would that make a difference?

That black GT....

ESSENCE!

I have to have some of those pink toe clips

yeah, at home ;)

Its an old link TBH. Love the wrinkly headtube.
http://www.littermag.com/techno/bcd29er/1.htm

I've got a wrinkly head tube, wrong kinda porn though. ;)

is that a lugged colnago fork?

looks like carbon colnago fork to me

As no one has been banned yet from posting Mtn bikes on the porn thread I offer this:

Still can remember being bowled over seeing one of these in the flesh.
Its bound to be a re-post so sorry for that.

^^^ horizontal drop outs, stick some spinergys on it and it would make a "totally rad fixie skidder"

lovely GT up there! ^^
has this been posted? Montante/Maserati bike with sexy paint and curvy seatstays...
http://www.coolhunting.com/design/montante-masera.php

^ Pic...

it was posted, and looks anti to me.

no worries, ftfh