SRAM 22

AstraMonti

Didn't see this posted yet. SRAM at last making the leap to 11 speed with force 22 and red 22. The interesting part is that they are getting hydraulic disks and hydraulic rim brakes while there are rumours for full hydraulic groupset.

More http://velonews.competitor.com/2013/04/bikes-and-tech/sram-to-launch-11-speed-red-22-group-hydraulic-brakes_280379

mossym

what are teh advantages of a hydraulic groupset over electronic shifting, apart from the obvious one of dead battery? i guess it could be seen as more reliable, more akin to a mechanical system in that there isn't a lot to go wrong?

can't see it being that much lighter, but could be wrong

AstraMonti

A fluid system is more light than casing and the average steel cable. It will also never require any adjustment as there is no cable to stretch or anything like that. It might require a bleeding every year or so though. Also it will always provide the same constant force which won't be affected through turns or kinks on the cables. And that makes it ideal for TT/aero bikes with extremely tight bends on the cables.

As for the hydraulic rim brakes, I don't see any benefit on them really, it will probably make them more bulky.

Lumen

An advantage of hydraulic brakes is (I think) that you modulate the braking force at more or less a constant lever position, because the fluid does not change length in the way that a cable system does.

I'm not sure how this will feel on a conventional brifter, since lever travel is arguably an advantage when braking from the drops, but it opens up the possibility of new lever designs in future.

Diarmuid

A hydraulic shifting systems sounds like a terrible idea.

ednwireland

AstraMonti wrote: »

As for the hydraulic rim brakes, I don't see any benefit on them really, it will probably make them more bulky.

have magura hs33's on my mtb for donkeys years wouldnt go back

no tired hands from braking on long descents and better modulation

shifting though nah.....

niceonetom

Hydraulic shifting is already out there for MTB.

https://www.youtube.com/watch?v=SfnzaZovBwY

All those cables would put me off.

mossym

seems a weird shifting system as well, not sure i'd like that flying downhill on a bit of tough singletrack

Craig06

Were Garmin not using hydraulic brakes on Milan-San Remo recently? I think there was something mentioned about them

mossym

hydraulic brakes are fine, makes sense, especially discs, have them on my mtb and love them, way more stopping power.

i just can't get my head around the hydraulic shifting, although the routing argument put forward by AstraMonti makes a lot of sense