Bike porn

Say what you will about weight weenies, but the ingenuity and home brew engineering interests me.

I was looking into it for an XCAD build. Have a frame made with an extended seatpost, then just make your own clamp for it from some cheap parts off EBay.

The new BMC is going to be awesome:

Looks fucking ugly.

has to be a prototype for the cobble classics, little bend in the front fork for better tracking, thin seatstays, extremely slooping with 27.2 tall ass seatpost for shock absorption, the cheap ass aluminum elite bottle cages and the 27 that has been written on the tires.. http://twitpic.com/8ocxrb/full

Looks fucking ugly.

this.

And probably will crack.

would probably look a lot better in a more normal size.

The saddle to bar drop is epic!

http://velospace.org/files/DSC_0067_1.jpg

Lovin this in spite of the seatpost.

Bit confused by this. 360 drops, low standover and maguras made me think street/trials bike but Thomson layback, chainring/guard and bolt on fixed gear suggest not. Also don't understand the roller/chain tensioner thing. Surely it can't be spring loaded if it's being run fixed? Maybe adjustable somehow?

I built this bike for a customer about 5 years ago...

I built this bike for a customer about 5 years ago...

It's really quite similar.
Joe should definitely get pink 7600 hub caps!

We're going to be discussing whether that's the same bike for a while, aren't we...
Go on, go ahead.

We're going to be discussing whether that's the same bike for a while, aren't we...
Go on, go ahead.

I know it is... the top tube chips match. 2 on the front and one on the rear. ;)

Also the hubs were pink before, but the guy changed his mind and I made them grey to match the Open pro rims instead.

Good to see the wheels have lasted this long. It's been looked after.

Bit confused by this. 360 drops, low standover and maguras made me think street/trials bike but Thomson layback, chainring/guard and bolt on fixed gear suggest not. Also don't understand the roller/chain tensioner thing. Surely it can't be spring loaded if it's being run fixed? Maybe adjustable somehow?

I was going to say it was for chain retention rather than tension but given the lack of track ends you're either looking at an eccentric rear hub or magic gear to ensure tension, so it looks like they have bodged that as a combination chain retainer and tensioner? Given where it sits on the chain and the fact it pushes up rather than forces down might enable the bike to be fixed without bending the tensioner

Just to add: because it looks like a flipped rear wheel with cassette removed and sprocket bolted onto the disc brake bracket

Andy how do you get the coloured DA hubs?

Big Wayne did explain to me that you can make them yourself, its something like the colour is printed on the back and the lettering on the front so if you strip the colour off you can recolour them

^ Yes, as described in the comments here: http://fixedgearbikes.blogspot.com/2009/08/dura-ace-track-hub-dust-caps-in-colors.html

actually they are not for sale, they come as custom made dura ace hubs by Dreamworks Mr. Adachi.

the good thing is, everyone can have them. well, if you own dura ace hubs... (credit to Mr. Adachi who told me how)

remove the plastic caps with a knive (gentle they are glued on) get rid of the black paint with fine sandpaper and paint/design them how ever you like...

That bridgestone is one the best things i've seen on here, it's just a build that i would love to have done/own

It's really quite similar.
Joe should definitely get pink 7600 hub caps!

its the same frame, squoocher mentioned that andy had built it for him, its really nice to get some pics of the frame in it's original state.

its the same frame, squoocher mentioned that andy had built it for him, its really nice to get some pics of the frame in it's original state.

I have lots of photos of the bike when it first arrived here in the UK. If someone wants them...

Actually lets make a quick calculation: An aerospoke is essentially the same as a flattened 1.5mm round spoke giving a crosssectional area of 1.767mm^2. In a rearwheel we would most likely need around 140kgf (= 1.373kN) of spoke tension in the driveside of a wheel with few spokes. That leeds to a tension of 777 MPa which is beyond the TZM's breaking point. Even if a lower spoke tension was used it would most likely fail under fatique after a short amount of time.

Obviously as a tester I don't even give any consideration to spoked rear wheels; if you're not on a disc, you're not really racing! Nonetheless, it does look like a 16-spoke front with TZM spokes would at least have very little margin between the loaded spoke tension and the UTS even without reducing the csa to exploit the extra stiffness. The search continues.

Lovin this in spite of the seatpost.

Bit confused by this. 360 drops, low standover and maguras made me think street/trials bike but Thomson layback, chainring/guard and bolt on fixed gear suggest not. Also don't understand the roller/chain tensioner thing. Surely it can't be spring loaded if it's being run fixed? Maybe adjustable somehow?

Freewheel is at the crank. Typical of trials bikes.