Used specialized 142x12mm rear thru axle. Brass bushing. OEM for Roubaix, Tarmac, Diverge. Axle is in good lightly used condition, threads are still nice, tool interface in great shape - photos are of one example of the many of these I have listed here - all have similar low wear and are in very good condition. If you’re not in a rush send me a message and I’ll be happy to send you photos of the exact one I’ll send you before it goes out if you are concerned at all.