Which Groupset?

Ah I see - So like a new range of xtr then? Would it suit touring at all then or just general MTB?

It's not a new range of XTR, it's a different range for a different style of riding.

Downhiller don't required says, a triple or double chainset, tend to have a narrower range of cassette (11-28), nor a clipless pedals (a personal preference), etc.

I doubt it would be a good idea for touring at all, overkill TBH when an XT or even Deore will work just as well.

Ah I see - So like a new range of xtr then? Would it suit touring at all then or just general MTB?

Its overbuilt for general MTBing. Its, as Ed said, a DH/AM groupset.

SLX is a great groupset for touring/ commuting etc IMHO. If you have more £££s the same parts can be had as XT.

Basically Deore, LX, SLX, and XT, all hav trekking versions bette suited to a tourer. By this I mean a 48/36/26 triple, as opposed to a MTB 46/34/24. For example.

But modern Shimano 10spd MTB stuff is not compatible with road 10spd. Whereas Sram stuff is.

Being able to run TT levers, Road lever, MTB rear mech, etc. Sells Sram to me TBH. A compact road chainset, and a 11-32 MTB casstte. Is a great gearing combo.

Unless your tourer looks like this.....

Downhiller don't required... nor a clipless pedals.

Really?

Done much DH Ed?

is there's a specific reason to why you removed the last bit?;

nor a clipless pedals (a personal preference).

perhaps he read it on some sales blurb..

scoby, pls

point being is that it's largely a personal preference than a necessity when it come to these races.

I think I recall Steve Peat stick with flat for example.

But modern Shimano 10spd MTB stuff is not compatible with road 10spd. Whereas Sram stuff is.

Why isn't it? Not sarcastic, actual question

Compatability of groupsets confuses the hell out of me.

Why isn't it? Not sarcastic, actual question

Technical reason: different rear mech pull ratio

Possible solution: mix road 10 speed shifters and 9 speed MTB rear mechs.

Seems like an odd decision from Shimano.

That's a bugger. On my Audax bike I always figured if the rear mech went I could replace it with a MTB one instead.

Also I guess MTB groupsets are better for year round riding?

Why isn't it? Not sarcastic, actual question

I'm not 100%. But I guess its down to cable pull. 9spd shimano works great when you mix and match. This made it great for trekking/touring/commuting etc.

But when the MTB stuff went 10spd they went with what they call Dyna-sys.
http://bike.shimano.com/publish/content/global_cycle/en/us/index/products/dynasys.html

At the same time 10spd Sram stuff is all compatible now with 'exact actuation'. I have a TT lever, and a X0 rear mech I'm going to be running together.

I reckon with your cable length on the long bike that Di2 would be a good idea, as the distance from shifter to mech will have no effect on shift time or accuracy.

That's a bugger. On my Audax bike I always figured if the rear mech went I could replace it with a MTB one instead.
Also I guess MTB groupsets are better for year round riding?

The materials used in a MTN rear mech are the same as those for a road one at the same price point (roughly).

They are made tougher, designed not to poke out from the bike, and often have cable routing that doesnt require a big loop. This makes them better for riding in situations where they could get snagged. But not that much better for winter road riding.

I reckon with your cable length on the long bike that Di2 would be a good idea, as the distance from shifter to mech will have no effect on shift time or accuracy.

I was taken by news of the leccy alfine. But I think the advantages of a hub gear on that bike are bigger than usual.

This will happen a lot....

Ride up to nursery, load two kids onto bike, realise I'm still in a hard gear, and cant pull away.

Not an issue with a IGH.

I realise I could shift before stopping. But I have to idiot proof the bike. Cuz I'm an idiot.

lot of money to spend for being an idiot?! Di2 for a non-racing bike is just overkill (and for a racing bike most of the time too unless you are cat 1 /elite)

Is it though? The same people would buy a £5k OTP frame, or Zipps or whatever anyway and at least Di2 gives you basically fit and forget gear changing compared to cable systems. This would save the 'city wankers' from poor shifts due to lack of tune ups.

I was going to say that Hippy. I can see a lot of people that have custom bikes they ride to work having it fitted.

Not sure how reliable it would be on a touring bike mind.

Is it though? The same people would buy a £5k OTP frame, or Zipps or whatever anyway and at least Di2 gives you basically fit and forget gear changing compared to cable systems. This would save the 'city wankers' from poor shifts due to lack of tune ups.

Tis a decent point.
Poorly set up £1.7k groupset < carefully set-up £400 groupset.

I was talking about the electrically shifted alfine geared hub though.

I was going to say that Hippy. I can see a lot of people that have custom bikes they ride to work having it fitted.

Not sure how reliable it would be on a touring bike mind.

Reliable yes. But it would mean carrying spares, and relying and secure bike storage.

Is it though? The same people would buy a £5k OTP frame, or Zipps or whatever anyway and at least Di2 gives you basically fit and forget gear changing compared to cable systems. This would save the 'city wankers' from poor shifts due to lack of tune ups.

I was talking about performance gains vs cost - there's no accounting what city cnuts will spend on bikes though... blerg.. boring.

Hippy, my bike is at Scherrits if you fancy having a play with it.

The rear shifting on my Apex equipped CX bike is fine- never miss-shifts, and I like doubletap.

However, when it comes to front shifting the comparison with Di2 is like comparing two different systems- as in, sturmey archer kick-back with a derailleur.

That's leaving out the speed of the erectric system, both front and rear.

and I like doubletap.

me too.. he's such a dreamboat