Time Trial / Time Trialling / TT

I hate that section (slightly more than the rest of it :)). There's a saddle-mounted bottle cage in the grass up there somewhere...

We're running all the designs through CFD first, no point having a chain guide if it's not aero! As with all our new stuff there'll be a surprise announcement and everything will be available to buy instantly.

Saddles are well on their way, for those that haven't seen:

https://www.instagram.com/p/BE9D9mwGZYS/

Timeline will be probably saddles first then chainrings, we're having internal bets on which make it to full production first! Then there are one or two more products before we get to FD mounts unless we nail something in the meantime.

Bah! CFD bollocks, I'll road test it for you. It has to be more aero than a full derailler.

Instant isn't quick enough :) Yesterday would be better.

Get a narrow wide chairing, no need for fd or chainkeeper.

Squeezing eleven sprockets into 130mm OLD is the problem.

Not, having a single chainring.

We're working jolly hard :D Rich Bussell is actually already on one of the saddles

N/W chainrings, clutched derailleurs and chain guides/keepers etc only treat the symptoms, not the cause.

I'd saw NW chainrings are the answer and closest to a cure.

What do you propose? A road smoothing pacing-steamroller?

The answer to what?

How does a solution that limits lateral play, solve a "vertical" problem?

Actually, I was a bit hasty there.

Scratch "clutched derailleurs" from the list: they are the only practicable solution.

Aside from 135mm OLD.

Do chains on 135mm OLD bikes not drop off single chainrings?

Is 2.5mm gonna make much difference?

Is 2.5mm gonna make much difference?

No difference at all, the spread from the top sprocket to the bottom sprocket is not changed, you've just move the whole issue sideways. A chainring at 42.5mm is roughly in the middle of the spread on a 130mm hub, so maybe using a 135mm hub would reduce the maximum chain deflection if your chainring is at 45mm. On the other hand, you want the chain deflection to be less at the racing end of the cassette, not only because that's where you spend most of the time, but because that's where the chain tension provided by the pulley cage is lowest and therefore seems the most likely place to get chain drop.

What about a MTB chain guide? Superstar do a plastic cage design on an alu back plate either BB mount or seattube mount. I'm sure there's a reason why not that I haven't thought about...

I'm sure there's a reason why not that I haven't thought about...

Mainly that a lot of the TT bikes which are losing their front dérailleurs have weird shaped seat tubes and road-type dérailleur hangers, so clamping to the seat tube is impractical but there's a handy mount to bolt the chain guide to if only the chain guide had the right kind of interface.

We've been through this. Do they do 58T? Not that I've seen.

O.O.S. but...

http://www.superstarcomponents.com/en/xcr-direct-mount-chainguide.htm

Maybe

We're working jolly hard

You wouldn't have to if you got more aerodynamic. :)

Maybe

Maybe when road frames start getting direct mount front dérailleurs.

http://www.acecosportgroup.com/k-edge-chain-catchers/cyclocross/cx-chain-guide.html

Something like this but for bigger rings.

http://www.qbike.com/category/chain-guides.html

Pretty sure that amber bikes will do you a 58t if you ask.

Yeah I was getting direct mount and braze ons mixed up

Ta, I'll ask them.