Which Groupset?

http://www.duraace.com/

Did the 12 speed chain and cassette spotted on an FDJ bike in 2014 get posted here?

Couldn't find an answer to this, apologies if it's been covered - need to replace my rear derailleur which is a Tiagra 4600. Can I use the updated 4700 with the 4600 shifters or this that literally mental?

Literally mental IIRC. Different cable pull ratio between 10 and 11 speed.

Makes sense... Thanks - it might be time for a groupset upgrade :/

No.

Put any Shimano derailleur and you'll be fine, 5600, Sora, etc.

Looks like alomost any 10 speed RD except a 4700 RD which only seems to be compatible with 4700 shifters from the Shimano charts

8/9/10 beside 4700 and those Shadow MTB derailleur

Grand, thanks chaps - I'll try a 5700 as these are still readily available.

New DA should be announced later today...

FUCK YES

dibs

Must have.

Power cranks?

yep, syncro shift and DA level discs, fucking finally!

Not wireless tho :(

As with 9070 Dura-Ace Di2, Shimano’s new R9150 electronic group is still wired from the single battery to both derailleurs and the junction box. What is new is the addition of Bluetooth to the system, so you can adjust the setup with a smartphone or tablet instead of just a PC (sorry, Mac users) with the 9070 group.

Also not a huge gap between 9100 and 9000 so shimano will have to kill 9000 soon.

My fav bit:

http://www.dura-ace.com

what is going on on that bar end?

junction box

also bye bye barrel adjuster for FD, tension built into FD!

Diff cable pull to 9000 tho.

fuck, those pinarellos are ugly

That video is pure lols

Hope that bar end thingy fits in Enves / works with 9070.

No idea about junction box but syncro shift is reverse compatible if you upgrade to new battery

Nope unless you want to drill your enve bars

Yeah, dunno about the synchro shift, definitely interested to give it a whirl but I'm not completely sold on the idea yet.

So it's basically an electronic mountain bike groupset for buyer bikes yeah?