Oh no! 
14 Likes
Not sure if I missed it, but isnāt the purpose of a derailleur hanger to be the weak point so when you crash, you break the $10 hanger instead of the $500 derailleur. Seems like there will be a lot of broken derailleurs and/or frame dropouts unless I missed something.
1 Like
Yeah lots of talk about this. Mount point is reinforced by the axle as well so for the frame to take damage youād be talking about enough force to bend an axle.
RD is designed for crazy durability as well as being able to get out of the way of a hit both laterally and longitudinally.
Finally, the weaker parts of the RD like the cage are easily replaceable.
4 Likes
Itās really fffing strong. Many photos and videos of people standing directly on the derailleur. Iāve heard 1300lbs of force thrown around.
1 Like
This looks very technologically impressive and by all reports works amazingly well, but Iām just not seeing any desire amongst mountain bikers in my area to move towards expensive electronic shifting. Everyone on the road is either on Di2/AXS or wants it, but if anything people are moving to cheaper groupsets, from XT down to Deore and the like, and then spending their money on higher grades of suspension and other things that effect their ride more.
2 Likes
To me, it seems like an odd mix of really great ideas (no adjustment necessary mainly, and a more robust interface replacing the hanger) with some costly bits that donāt make a whole lot of sense. This new proprietary threaded chainring only claims 31 grams of weight savings over a four-bolt pattern, and a $2699 retail drivetrain that comes with a single-sided crank-based PM?
Iāll be interested in seeing what the GX equivalent down the line looks like.
Electronic drivetrains have lifted the price ceiling for drivetrains, but all others have gotten more expensive, too. Also Shimanoās mechanical drivetrains have gotten more expensive with the years for no good reason. In Germany, up until 10ish years ago having a SLX/XT or full XT drivetrain was standard for a 1,000ā1,500 ā¬ hardtail. My 2,200 ā¬ fully 10 years ago came with a full XT drivetrain save the cranks, which were SLX. It also had a Reba RL fork and a mid-range damper. Nowadays, you have to pay significantly more for a comparably kitted out bike.
That seems pretty predictable to me: slightly heavier than XX SL/XX/XO, and functionally equivalent.
Iām seeing the opposite. GX AXS kits are way cheaper and more accessible than upgrade paths on road and have been pretty deeply discounted for the last 6 months or so.
Yeah maybe itās so strong and since itās linked to the axle, the durability concerns are unwarranted. Also maybe since the derailleur is mounted concentrically to the axle the alignment issues may be unlikely as well.
Maybe
Watch the PinkBike video that did the same with no issues or drama. This new system is poised to blow some minds.
3 Likes
Iāve seen online the new group-set is anywhere from 0.5 to 1.2 pounds heavier. Is it really this much?
I think if anything it will help with alignment issues. Based on the exploded parts view in his video, the outer plate of the āclevisā has the bushing and it looks to me like the inner plate has the smaller bore and is likely the side that āaligns the whole unit. That will be in direct contact with the hub spacer and axle so Iām seeing this as RD is always aligned to the wheel (and therefore cassette) and not to the frame.
Regarding the engineered failure point. While I agree with not wanting to damage a frame, the concern about it translating too much load into the chain stays and suspension pivots is overthinking it, in my opinion. The loads from the derailleur impact would be very small when compared to the loads imparted on all of those parts while riding the bike and cornering, even gently, or jumping. I think having the derailleur hard fixed to the wheel/axle is going to help distribute that force throughout the entire rear triangle. We would never think twice about any of these āimpactsā were they to be applied to your wheel/tire, even entirely perpendicular to the wheel (and that has a ~14ā lever on the axle/linkage.
8 Likes
Iāve been running SRAM x01 axs for a year now, and had been waiting for this, as the current AXS clutches are piss-weak for enduro and noisy AF.
This looks way better, but my bike is not a UDH bike.
Theyāre essentially trying to force people to adopt their standards.
Wonāt be bothering, SRAM has always been inferior to Shimano in terms of function, longevity and ease of maintenance for me (as an aggressive MTB rider in a subtropical climate.
I just hope Shimano brings wireless shifting to the table soon.
2 Likes
This is pretty much what Iāve come around to thinking as well.
I think peak torque is missing the part where the derailleur mount is concentric with the axle so it doesnāt seem likely (or possible) that small variations in the frame can make it misaligned.
3 Likes
My bike uses the UDH, and Iām generally on the less price sensitive side of things, am a little bit of a weight weenie, but DAMN. For me to upgrade two XX1 Cassettes, all my chains, and the full setup I think Iām better off waiting until I upgrade Bikes.
Gives me a little time to see the longer term reviews.
5 Likes
I really think upgrading to this makes almost no sense for anybody. Itāll be specced on most high end MTBs and thatās when people will get it. I donāt think sram made upgrading a priority, because they see that OEM sales will be the driver of adoption.
2 Likes
Most of my bike purchases and bike hobby makes almost no sense for anybody, so upgrading would actually be right in line with all the stupid stuff I normally doā¦
Hell, my two bikes are worth more than my car. 
9 Likes
Interesting - the Trek E-Caliber and Procaliber appear compatible, but not the Supercaliber.
Totally agree. Definitely will wait for a bike upgrade.
The integrated power meter would also be a stepdown. I currently have a Quarq, which is dual sided, versus the left only option in the new groupset offered by SRAM.
1 Like