Bike porn

This is the porn thread...

One advantage would be that it looks better on the show bike, another would be that it's marginally lighter and allows for a shorter wheelbase.

The disadvantage is it's less aero .. Slamming the wheel results in a stalled air stream between the wheel and frame which creates aerodynamic drag on the wheel. Although I'll give you it's not a consideration other then when using the bike for it's intended purpose ..

Look did a study and published, proving the optimum distance. Someone else can dig it up if they want ..

Cervélo would beg to differ, see S5

They could take a link out of the chain and still have the 10-12mm gap which was considered optimum on the Look 596. What the best gap is on other frames would have to be found by experiment, because there's a trade off between smooth flow off the frame onto the back wheel and viscous drag in the thin shear layer between tyre and seat tube cut out.

Also, long wheelbase is faster round the corners, because the long chord lift the bike higher off the track, reducing the radius of curvature and therefore path length for the centres of both gravity and pressure

and also what looks raddest, they end up settling for that

i'm sorry, but why is everyone spunking over the alu BMC? It's not hugely specially and the dropouts are worse than mielecs

i'm sorry, but why is everyone spunking over BMC?

Broadened that for you

Cool, first bike on this page after all these spacecrafts..
Like it.

Track Machine is tres militare.

Need to strip graphics/branding tho as fug imo.

i'm sorry, but why is everyone spunking over the alu BMC? It's not hugely specially and the dropouts are worse than mielecs

Ever seen a top end BMC up close? The finish and tube shapes on them are amazing in the flesh. I always thought that the top end s-works frames were the best made- but was completely blown away when I got my BMC.

Plus dropouts look ok IMO - comparing them to Mielec is a bit stupid.

Replaceable dropouts? What a dumb and ugly idea!

I mean, who would do that?!

Ever seen a top end BMC up close? The finish and tube shapes on them are amazing in the flesh. I always thought that the top end s-works frames were the best made- but was completely blown away when I got my BMC.

Plus dropouts look ok IMO - comparing them to Mielec is a bit stupid.

#Fanboy

Does anyone know why DA track cranks still look like cranks as opposed to an experiment in 3D wankery like their road counterparts?

because weight is not an issue so rnd has come to a standstill until carbon technology has moved on

^^^yup. Graphic designer in liking Swiss stuff shocker...

I find this interesting, what model cranks are those?

because weight is not an issue so rnd has come to a standstill until carbon technology has moved on

Would have thought it's lack of market more than anything. There are higher end carbon ones such as those on the Look L96 and the British olympic bikes, but seeing as track is a relatively small market compared to road, theres no real push for a manufacturer like Shimano to put money into development of expensive high end components when the sales will be very low.

yup pretty much. what I meant to say is that since the factors that make road parts get so much rnd is less of an issue on the track there is no real market

You think they'd at least have some modern external BB cranks though?

I haven't ridden DA cranks yet so can't say how they compare in ride VS what external BB cranks I do have (rotors and omniums but have also briefly owned on one) I have a pair of DA 7600 cranks on the way for my daily fixed bike.

I'm really interested to see how they compare but I honestly doubt a rider at my level will really feel it much if at all.

^^^yup. Graphic designer in liking Swiss stuff shocker...

Own a BMC, so I can't say anything... also owned a Team machine in the past.

They will be 7710 not 7600

You think they'd at least have some modern external BB cranks though?

There's no drive for that. Because of their brand recognition as a technical leader in the road market, they're always going to make sales in the track market. Because the track market is so niche those sales will be relatively insignificant to them overall, and introducing an external bb crankset won't make a significant difference to those sales, so all they have to do is offer a track crankset and maybe tweak it a little bit every few years to make it seem fresh. Further to that, track gets so little media coverage compared to road racing, even if they were to make a top end chainset and get it on every track pro's bike, the increase in publicity would be basically none for them.

I thought it was because external bbs limit the minimium q-factor?

Tester will know...

:)