[Octopuss]

Just purchased the one up switch (0mm offset) and their 12 speed chainring that claims to t-type compatible. will report back and see how this works.

Have you tried yet?
I'm desperately looking for 0mm offset oval chainring compatible with T-type chain for SRAM's 3bolt system, and aside from Wolf Tooth (that's out of stock until january), I couldn't find anything.

 

[Octopuss]

I contacted OneUp and this is what they told me:

Great question!
All of our chainrings were designed around X-Sync2, rather than T-Type chains.
So far our experience with the combo has been in line with that of a reviewer from NSMB -

"SRAM X-Sync rings will work relatively well. I know this because I have been using one since the T-Type version wasn't available for the eMTB application on the Trek Fuel EX-E I've been testing
(which was the only UDH bike I had at my disposal to test the T-Type system).

Apparently, the long-term durability of the chain and cassette won't be as impressive without the new chain ring, and chain retention may be compromised as well, but for me thus far, it has been flawless."
So while we don't have an officially compatible ring, they will work happily with the Transmission drivetrains.


My takeaway from that is no way I'm doing it with the price tag of X0 cassette and T-type chains.
I'll rather keep riding the stock GX cranks until WolfTooth stocks the chainring I want again in january.