SRAM's Wireless Eagle and Dropper

BT180

Max Pfaff
Damn, this looks good. Expensive but could be worth it for this alone:
  • Derailleur features a shorter cage for 10mm added ground clearance, more chain wrap, and sits slightly further forward and further inboard than mechanical Eagle
SRAM Eagle AXS Electronic Drivetrain Breakdown
  • Wireless-electronic shifter and derailleur allow you to initiate a shift with a touch
  • Removable battery provides 20 hours of ride time, takes one hour to charge, weighs 25g, and is hot-swappable from derailleur to Reverb AXS
  • Same 500% gear range and cassettes as previous Eagle drivetrains
  • All-new derailleur specifically designed to be motor-driven instead of cable-actuated
  • Derailleur features a shorter cage for 10mm added ground clearance, more chain wrap, and sits slightly further forward and further inboard than mechanical Eagle
  • Overload Clutch disengages on impact to protect the derailleur’s shift motor, then returns to position and shifts back into gear
  • Trimmed and adjusted electronically
  • “Secret Sprint” paddle oriented on the front side of the controller near index knuckle allows for quick shifts
  • Press a button on the derailleur to check battery
  • System goes to power save mode when the bike is stationary
  • Water and dust proof to the IP69K international standard (can withstand pressure washing and immersion)
  • Crankset requires SRAM DUB bottom bracket (not included)
  • Available chain lines: 49.0mm, 52.0mm, 56.5mm
  • X01 has an enduro focus, forged aluminum cage, stainless hardware, and black/polar colors
  • XX1 has an XC focus, carbon cage, titanium hardware, and rainbow color
  • Eagle AXS drivetrains weigh 5 to 15g less than mechanical Eagle
From https://www.vitalmtb.com/features/I...agle-AXS-and-Reverb-AXS-Details-Unveiled,2617
 

Nambra

Definitely should have gone to specsavers
The electronic Reverb looks interesting too - has a reset valve like the Bikeyoke.

Yes is is expensive, but a shorter derailleur cage has to be a good thing - I wonder why the cable actuated one can't be similarly short?
 

c3024446

Likes Bikes and Dirt
Really cool technology, kudos to the R&D effort to bringing it to life. Honestly I'd be a little bit jealous of anyone running this - I could never justify forking out for it,.

Side note: SRAM have beaten Shimano out of the game - WTF is happening at Shimano with their new XTR group with cancelled hubs and cranks that haven't been produced yet :O
 

BT180

Max Pfaff
Yes is is expensive, but a shorter derailleur cage has to be a good thing - I wonder why the cable actuated one can't be similarly short?
Yeah, that will be so good if they could do something similar to their regular Eagle RD. So many stories of smashed RDs on rocks in my area. Maybe a design limitation, when compared to the electronic version.
 

caad9

Likes Bikes and Dirt
Will be interesting to follow as it becomes available. eTap on the road was not overly well received when compared to Di2.
Lot of complaints about the slow response time.

I'll get interested when a button drops the post for you, the sit down method is great when there is no better option, but surely that's coming.

Also, it would be sweet to ride minus a million cables again, I applaud that.
 

smitho

Likes Bikes and Dirt
Aside from never being able to afford this in my lifetime, biggest issue for me would be battery life. I can’t even remember to charge my phone most days...

For now I’m going with “I’m a purist” and “can’t beat the feel of mechanical”.


Sent from my iPhone using Tapatalk
 

Mr Crudley

Glock in your sock
Good the see them trying something different but I'm not sold on electronic geewhizery is needed here.

It is a retrofit to existing ideas, everything has it's own small battery. No central power source has been pushed for the growing number of electronic bits on bikes. That would make sense and I'll gamble that an ebike power bus will be the next step to tidy up all of this stuff since there isn't an much need if you are still always relying on your own power.

I gather the IP69K standards mentioned will also remove any user serviceability? Not that you would have to do it much, hopefully, but I wonder if you could replace the battery inside the little clip on battery case if needed or need to take it to an 'official service centre' to crack it open like a mobile phone which now conform to similar IP67 and IP68 standards and generally no longer serviceable by the average non-technical Joe. 20hrs ride time isn't that long so you could assume that the battery will go through quite a few charge/discharge cycles leading to lower performance as time rolls on. The battery looks quite petite.

Not trying to pour too much cold water on it but I guess Sram and Shimano 'mus't have something in the electro shifting market or be seen as being behind in the arms race.

To quote the article, "It's 2019," says SRAM. "Let's make things easy."
Yeah, right, you farquers never really tackle the difficult things like a removing the whole traditional drivetrain at once. Always tweakage of an existing idea. The evolution of the ebike should be the place for freedom where they all still have a more or less a blank slate to fill in. The pedal only club will get the alpha releases while we use these experiments to figure out the future.

If I got paid to race then I'd be first in line though :)
 

dancaseyimages

Mountain bike pornographer
It would be quite interesting for Strava or those who train though, if it were possible to log the shifts or gear etc. Given it is using wireless tech might be something to think about.
 

Cardy George

Piercing rural members since 1981
It would be quite interesting for Strava or those who train though, if it were possible to log the shifts or gear etc. Given it is using wireless tech might be something to think about.
Granted Di2 is wired, but my Garmin 820 already logs shifts thru the ANT+ connection.

Doesn't show on my Strava, but I'm not a premium member either.
 

goobags

Likes Dirt
My run in with electrics and bikes was the Lapierre e:i system and its major downfall was the flimsy cables which connected everything. I think if I were to do electronic shifting - which I won’t - it would be wireless as there is less stuff to break. That, and bikes with only brake cables look sick

In saying that, it would need to have no lag. I know Magri’s struggled with the first wireless dropper they made.


Sent from my iPhone using Tapatalk
 

Cardy George

Piercing rural members since 1981
My run in with electrics and bikes was the Lapierre e:i system and its major downfall was the flimsy cables which connected everything. I think if I were to do electronic shifting - which I won’t - it would be wireless as there is less stuff to break. That, and bikes with only brake cables look sick

In saying that, it would need to have no lag. I know Magri’s struggled with the first wireless dropper they made.


Sent from my iPhone using Tapatalk
AXS is next generation, but I heard there was a noticeable difference in lag between wireless SRAM and wired Di2.

I love my Di2, but I'd need a same minute side by side comparison to go wireless. And even then it would depend on finances whether or not to go back to conventional cables.
 

bear the bear

Is a real bear
Really cool technology, kudos to the R&D effort to bringing it to life. Honestly I'd be a little bit jealous of anyone running this - I could never justify forking out for it,.

Side note: SRAM have beaten Shimano out of the game - WTF is happening at Shimano with their new XTR group with cancelled hubs and cranks that haven't been produced yet :O
Their ano/ production plant burnt down and they are trying to catch up on ultegra/ dura-ace/ xt/ xtr....
 

bear the bear

Is a real bear
Pushys currently has the new Red ETap list for $4k for a 9 piece groupset so that should give you an indication of pricing. No MTB as yet....
 

sane

Likes Bikes and Dirt
AXS is next generation, but I heard there was a noticeable difference in lag between wireless SRAM and wired Di2.
This was noticeably absent from everything I’ve read today. Basically all comes down to shift/ lag time. If they’re not at least comparing the 2 brands they’re saying nothing.

I’ve had a bit of experience with di2 on a cx. It’s amazingly accurate, battery lasts ages and looks really clean with all the internal routing.

No chance I’d use it on my mtb though. I have a special device which can dump a bunch of gears in a tight spot way faster than di2, me thumb.
 

The Duckmeister

Has a juicy midrange
No chance I’d use it on my mtb though. I have a special device which can dump a bunch of gears in a tight spot way faster than di2, me thumb.
Have you tried tweaking the multi-shift up to the "very fast" setting? It's almost too bloody fast, unless you're really, really on the ball and let go of the button fast enough it overshifts a couple of gears! (unless it runs out of gears first).

At the launch of road eTap a few years ago, I was told that SRAM deliberately slowed the shift speed due to the small independent batteries; it was necessary to give decent run time off a charge. The result was shithouse performance....... Di2 might still have wires, but it shits all over eTap in every other regard.
 
Top