Thank for sharing. Please put your review and full description of you CB gearing configuration. I thinking about AXS too - but the most probably I will stick to Shimano di2.
Hi, Damien!
I posted a summary of my build with pics here:
PM sent I am looking forward to your build and pictures. Congratulations!
forum.cruzbike.com
Since my drivetrain is 1x, there's not much to it. The mech is SRAM Rival AXS XPLR and the shifter is the AXS POD 2. The shifter is from the MTB family of components and the mech is from their gravel group. Because of the brake levers I'm using, the POD makes the most sense for shifting. I'll live with it for a while and see how it goes. I just like a minimal cockpit.
The cassette is a ZTTO 12 Speed 11-46 ULT Black. I bought it from AliExpress. 11-46 is my preferred range, but its getting harder to find for the HG freehub body in 12 speed. This is also a lightweight cassette, which I thought would pair well with the carbon wheels. No sense in having light carbon wheels if you're going to fit it with a boat anchor. There are people wanting crazy money for lightweight cassettes. For under 100USD, I figured I could take a chance on the ZTTO.
As far as a review, I can only give an impression of about 200 km. The SRAM XPLR range is supposed to have a max of 44T but it takes the 46T just fine. I wouldn't go higher than that with the XPLR series. The shifting with the ZTTO cassette is better than I expected. Initially one gear was sticking but I used the SRAM phone app to fine tune the alignment and that resolved the issue. I'm using a KMC X12 chain.
Everything is working. There is one thing I don't like, but there really isn't any way around it. Generally speaking, I'm not a fan of more and more gears on the cassette. 9 or 10 speed is fine for me over that 11-46 spread. I'm only running 12 speed because there's no option to run less with the SRAM electronic shifting. The problem is that you have this narrow cog spacing and the chain is designed to just fit in that spacing. This means any misalignment has the potential for rubbing. In the smallest and largest sprockets you have the most extreme chain angles. I'm not in 46T much - that's a bailout gear - but I am in the 11T sprocket a fair amount and I can't get it so that it doesn't make noise.
With my other bike I have a 10 speed cassette and an 11 speed chain. That's heaven. There's loads of clearance between the chain and the sprockets, so no matter what gear I'm in the drivetrain is silent. I don't anticipate having that experience with 12 speed set up as 1x.
Other than the noise at the gear extremes, the AXS system was simple to install, setup and tune. The app has nice tools, such as being able to see the battery life of all your components in one place. Speaking of which, the ability to change the battery and charge it off of the bike puts SRAM AXS ahead of Di2 for me. That, and the fact that it is truly wireless, unlike Di2.
I haven't missed any shifts on the road. I'm also impressed that it works well with the odd components I threw at it; ZTTO cassette, KMC chain and Shimano Alfine crank. All are working well together. Time will tell if all of this remains.