Not sure if anyone has any experience with this or not but i need to change the freehub on my neo 2T to sram for my AXS but their freehub is out of stock till mid march!!!
Does anyone know if there are others that fit? or if there is any other options for running 12s AXS on a shimano freehub?
Sadly, since SRAM made the roller size different (even though the pitch is still 0.5") that single difference prevents us of ANY regular cassette. They will NOT work, even in ERG.
The larger AXS chain rollers will not seat into the cassette teeth of a “normal” cassette. It’s a no-go option.
I used a pretty old 10 speed 105 cassette with my Rival AXS bike for about 2 months before I got a new cassette for the trainer. It worked fine.
I currently have a 12 speed rival cassette on my Elite trainer which obviously works fine. The NEO 2t has an 11 speed 105 cassette because it usually has my wife’s bike on it. If I do a very sprinty (lots of shorter on/off) workout I’ll swap my bike over to the NEO because of the instant response time. Have never had a single slip or anything.
I need to look at hard numbers to see the actual impact, but using a larger diameter chain roller (Flattop AXS) in a standard cassette would likely result in the roller being “suspended” between the cog teeth… rather than landing in the bottom of the arc where a normal roller would sit.
It could create more “point” or “wedge” loading on the roller vs the more “cradled” loading when it rests in the bottom of the tooth/roller profile. It “works” in the sense that it will turn stuff, but wear on the cog and chain could be a real issue.
All speculation, but from a simple geometric shape and support perspective, it’s not ideal.