Kenneth P.wrote a review of RockyMounts Drive Shaft Thru-Axle Bike Rack Adapter on November 13, 2014
Familiarity: I've used it once or twice and have initial impressions
I bought this adaptor to add to my new Rocky Mounts Pitch Fork rack. It just does not hold the bike steady. The adaptor rotates forward and backwards on the rack as the rack is unable to tighten the adaptor down. Then when the bike was put on the adaptor, the axle rotated inside the adaptor. Neither the rack nor the adaptor was able to get tight enough to hold the bike steady. Not good with an expensive bike. I will try the Thule 15mm adaptor that is not so fancy.