[Closed] Di2 XTR

I heard that it'll only work with 650b wheels.

Cool story bro.

Excited we are in the shop I must say

With 650b wheels talk like Yoda you must.

650b fat bike only I heard

Will they electrify the trail (as opposed to bringing it alive)?

It's about time too, I am surprised it has taken shimano so long to get around to doing an electronic groupset for mountain bikes.

It is always good to revisit 2012's news, that was a good year.

Will they electrify the trail (as opposed to bringing it alive)?

Look upon it as a sort of defibrillator. Bringing back to life previously dead trails...

What if I don't wear a helmet?

Sure it'll look lovely wrapped around the first rock I encounter/in my wheel.

no thanks. one of the beauties of cycling is that, once built, you provide all the energy it needs.

I might relent if they were powered from a dynamo.

Well the di2 is coming for sure
I will be testing it as soon as on one of our test bikes

Rorschach - Member
Will they electrify the trail (as opposed to bringing it alive)?

Surely that's the best way to bring something that's apparently dead back to life

[url= http://singletrackmag.com/forum/topic/do-you-ignore-certain-contributers-to-this-forum ]I knew there was someone else[/url]

It's looking like it'll be available to mere mortals soon which is nice news. Unfortunately I won't be rolling in the spare mullah to have it on my bicycle but I may test ride something to see how it performs and I'd like to see how it copes the wild welsh weather and trails by me, though some of the Di2 road stuff has seen some mentally harsh conditions.

Looks cool.

Double post.

2x12 only tho (

Not exactly a scoop this, is it? It doesn't take a genius to work out that Shimano have been working on this for a while.

Will your next revelation be that there's an Argetine man in Rome who leads a major world religion, or perhaps an exposé of ursine toiletary habits?

A mate has been running a weatherproofed Di2 & XTR on his Scale for a good 18 months now & he is far from unique.

Who'd put electric gears on an mtb?!?

A nut job who just wondered if it [i]could[/i] be done.

It makes more sense on an MTB, where the self triming would be really helpful. Absolutely no reason why electronic shifting wouldn't be more resistant to harsh conditions than current mechanical set-ups.

The only real issue for most of us will be the cost of crash damage replacement parts. I will wait until it trickles down to xt level or even slx. But I will defiantly be interested in it.

It makes more sense on an MTB, where the self triming would be really helpful. Absolutely no reason why electronic shifting wouldn't be more resistant to harsh conditions than current mechanical set-ups.

Yep, as above. Powered shifting through mud as well, all good. The large range of gears on MTB, especially in 2x11 or whatever would really benefit from Di2 as well. I'd ride it.

flange - Member
Who'd put electric gears on an mtb?!?

😆

What tyres for electric gears?

Sounds like a recipe for disaster...

Automatic gearboxes are where it's really at 😉

Heard some 'interesting' stories about the electronic gears....

Personaly I can't wait till I sensible cost di2 mtb is out there ,
My only concern is I think the SRAM type 2 Is better than shimano clutch mechs

i did this years ago

So did Flange - hence his posts...

I hope they do single ring. Ultegra Di2 needs the front mech for the rear to work.

According to Fairwheel you only need the front mech to set it up.Once its done you can disconnect it.
It's on the fairwheels forum somewhere.

Can't wait for Di2 SS

According to Fairwheel you only need the front mech to set it up.Once its done you can disconnect it.
It's on the fairwheels forum somewhere.

Still need to buy a £200 mech just to set it up, bit too far IMO!

I like the look of the Di2 Alfine. Maybe with a Gates belt drive, fitted to my Jones with truss fork. 69 obviously...

Still need to buy a £200 mech just to set it up, bit too far IMO!

I expect it to be more aimed at race set-ups, at least initially. So I don't see them going with the single front ring.

What would be more interesting would be if they just had a single shifter that worked out how best to select both cassette and chainring position.

I expect it to be more aimed at race set-ups, at least initially. So I don't see them going with the single front ring.

A huge number of racers are now running single rings, I'd say it's the majority now.

Do I have to put my 11 speed XX1 in the bin already?

I'd say it's the majority now.

Only the sram sponsored ones 😉

Nope, plenty of Shimano users running 1x10. Myself included.

I'm not just talking WC level, but across the board.

Only the sram sponsored ones

That's a big negative. Most XC racers I know run a single ring at the front regardless of whether it be SRAM or not. I think if you're using a granny ring in an XC race, you probably shouldn't be racing....

Cool if you can run these from the battery too

[url= http://www.firecrestmoto.co.uk/oxford-motorcycle-hotgrips-premium-sports.html?gclid=CMuSx6eZqLoCFZIPtAod-m8AJA ]Linky[/url]

LoCo - Member

Heard some 'interesting' stories about the electronic gears....

*drums fingers*

Allright then, I'll ask. What have you heard?

Who'd put electric gears on an mtb?!?

I also think it makes more sense on an MTB than road. No cables to get cakked up.

That's a big negative. Most XC racers I know run a single ring at the front regardless of whether it be SRAM or not. I think if you're using a granny ring in an XC race, you probably shouldn't be racing....

Not all XC is 1.5hours max. I'll use my granny in a 6hr race thanks.

Do you win those 6hr [s]enduro's[/s] xc races then?

I'll use my granny in a 6hr race thanks.

Not an XC race then is it? Unlses you're taking 6 hours to complete an XC race, in which case see flange's comment 😉

Edit: beaten to it by Flange!

Point still stands though, I'd race a 6 hour race on 1x10. I'd probably go for a double (or XX1) for a 24 solo, but that's about it! YMMV

I think if you're using a granny ring in an XC race, you probably shouldn't be racing....

*[i]cough[/i][b]BS[/b]*[i]cough[/i]

That's pretty much the only time I'm ever going to beat you at anything Njee...

*coughBS*cough

You missed a '*'. How is it BS then?

That's pretty much the only time I'm ever going to beat you at anything Njee...

Don't be too sure, my ever expanding waist line and dwindling enthusiasm is dragging my fitness further into the doldrums, and that's not being modest!

*coughBS*cough

Inclined to agree with Flange here - what use is a 22t granny ring in an XC race?

I think if you're using a granny ring in an XC race, you probably shouldn't be racing.

Are you saying the lower orders shouldn't bother? Harsh.

Sorry, * there we go. 😉

Depending on your strengths you may find a 'granny' ring is entirely necessary in XCO races.

I find this elitist nonsense quite depressing, and not entirely encouraging to new riders trying XC racing.

22t hasn't even been standard on a triple for a few years, I doubt they are doing di2 xtr as a 3x9 set-up.

I prefer to run a triple with a 12-27 block at the back, can't stand single ring set-ups with 11-36 cassettes, never in the right gear. I think most might settle on 2x10.

I'm all about the Audax these days Njee - this high BPM chasing each other round a field thing is sooo last year. Cake stops and Ron hill tracksters for the win..

At least 4 of the riders in the top 8 in Sport in the Gorrick winter series last weekend were running 1xN. I'd comment on the Expert/Elite class but I'd have to be somewhere near them to see what combination they're running and there's bugger all chance of that..

Depending on your strengths you may find a 'granny' ring is entirely necessary in XCO races.

I find this elitist nonsense quite depressing, and not entirely encouraging to new riders trying XC racing.

First off, there's no elitist nonsense at all. I'm about as far from Elite as you can get. The point here is the original comment and the fact that the majority of racers at the sharp end now run 1xN. Those in the fun/open category probably don't (and there's nothing wrong with that!) but the proper fast lads (of which I am not one of) run 1xN

Are you saying the lower orders shouldn't bother? Harsh.

Next you'll be telling me its the taking part that counts...

I find this elitist nonsense quite depressing, and not entirely encouraging to new riders trying XC racing.

Fair enough, I freely admit I was thinking about the 'sharper end' for want of a better term, but I include myself in that, and I doubt I'd manage top half in sport these days.

[img] [/img]

Yeah - but she's not even on a 29er...what's she going to win...

No granny ring there, just a double. We're going even further OT, but personally I think of a 'granny' ring as a 22/24t one. Very few pro XC racers are running anything other than double or single now, as shown by that photo!

Smaller rings in the women's field, perhaps unsurprisingly.

Yeah - but she's not even on a 29er...what's she going to win...

She's got tubs, that cancels out the fact the wheels are too small.

Yeah but she's also running DT Swiss forks which will require a service every lap..

🙂

Not 1xN though is it - Probably a 26t - to be fair, she isnt at the top end of Sport racing in the UK though.....

I find this elitist nonsense quite depressing, and not entirely encouraging to new riders trying XC racing.

This on a thread about XTR proto electronic shifting?

And we're back to over-biking. I'm so over-biking.

Where did anyone say that 1x10 is all you need? Just that it's prevalent, and that 'granny' rings (open for interpretation) are probably not required, for most, in some places, if there's an y in the day and an r in the month, as long as you're on 650b wheels and using tapered forks, bar ends optional.

Not 1xN though is it - Probably a 26t - to be fair, she isnt at the top end of Sport racing in the UK though.....

Amazing - so my original point of not using a granny ring in a race is proven by a picture posted by yourself. Are you sure its a 26? I think it might be a 27...or maybe a 27.5

Eh?

EDIT: I can't be bothered.

You're right. We're being elitist. I'm actually shouting at people right now not to take up XC(O?) because they're not elite enough. I shall stop immediately and sign myself up to an MTB skills course...

Not an XC race then is it?

what?

ameso - Member
Not an XC race then is it?

What is it called these days then, since (new)enduro nicked the term we used for the old Kona / Merida 100s etc? Is XC racing only the 2hr stuff?

Marathon, surely?
Or XCM if you prefer.

Anyway, any photographs yet?

XTR di2 has been discussed even since durac ace di2 was announced but haven't seen any photos or specs yet. Is it just going to be m98x with a servo?

You're right. We're being elitist. I'm actually shouting at people right now not to take up XC(O?) because they're not elite enough. I shall stop immediately and sign myself up to an MTB skills course...

😆

Anyway, any photographs yet?

Sea Otter next year I reckons before we see anything concrete. I'm going for 11 speed, but not using X Driver body. 11-38 cassettes or something.

Isn't all this electric gubbins just trying to fix a problem that doesn't exist?
Why is it better than cable actuated?(genuine question)

jameso - Member

What is it called these days then, since (new)enduro nicked the term we used for the old Kona / Merida 100s etc? Is XC racing only the 2hr stuff?

"New" Enduro was being raced for years in that format in France, and on motorbikes even longer before that. It's you weird long distance types that misappropriated the term, now it's been "taken back".

I have built 100+ Di2 road bikes both custom build and production bikes (10 speed Dura Ace and Ultegra, and 11 speed Dura Ace and Ultegra) and also a number of Campag EPS

have also repaired many Di2 bikes with "issues" including crash damaged components (normally rear derailleur) and firmware incompatability - normally where the customer has replaced a damaged component with a new item bought from on-line retailer and installed 'at home'

also seen torn cables, damaged shifters and battery charging issues

Mountain biking? Have seen a number of customers running Di2 Ultegra in 1 x 10 setup on their MTB with custom made bar shifter mount using time trial buttons. nice but niche?

personally? have been using SRAM 1 x 10 for 2 years in X-0 flavour using 32T or 33T chainring and 11-36T cassette.

very durable, but range of gears lacking for steeper muddier climbs, more of a problem in the winter!

recently got to test ride this SRAM 1 x 11 bike for several hours in the mud, very impressed with shifting performance and gear range, could motor up anything steep and muddy

[img] [/img]

Can not see any need for electronic shifting as it would not offer anything this 1 x 11 setup did?

The rear mech on the SRAM mechanical is always cheaper to replace if you smash it in a rock crash, or bend it by getting a tree branch wedged in the chain, etc.

Open to all ideas new and old, but perhaps the electronic is a seeking a problem that does not really exist. On my road bike, totally prefer mechanical Ultegra, especially the shifting "action" which is tactile in mechanical, and very 'sterile' in the electronic version of my groupset

Do you win those 6hr [s]enduro's[/s] xc races then?

Fair cop but I'm mid field generally and if I'm honest my granny on the double was 30T before I went 30T 1x10.

If you said electric shifting would eliminate trim on my MTB then I would go "SHUT UP AND TAKE MY MONEY"! However, the more I ride (i.e: the fitter I get), the more 1x10 makes sense! Really like the "less to go wrong" concept.

Why is it better than cable actuated?

Because cables get grungy and performance deteriorates.

But when they do any home mechanic can change them for minimal cost.

Can not see any need for electronic shifting as it would not offer anything this 1 x 11 setup did?

It's different, not trying to compete. I reckon Shimano will stick with 2x11, slightly narrower cassette than XX1, no proprietary freehub body, but go electronic. Can't see they'll compete directly with XX1.

Hope I'm wrong frankly, Shimano 10-42 cassette with XTR Di2 would be awesome!

Because cables get grungy and performance deteriorates.

A single run of good quality outer cable will run 'as-new' for months, if not years. Just resist the temptation to apply lube: that's what will gunge-up over time.

I know, I've been running cables for 20 years, but they are still a weak point.

I often planned in my head the lowest maintenance bike possible, but there was always a gear cable in it. If they make Di2 hub gears my plan will be complete 🙂