Posted in the Riro discussion as well, but just a heads up to everyone who uses this style of crankset. The internal spline lock ring that holds the 8mm bolt in the crankset can become loose. It is also reverse threaded so it seems to be very hard to source a replacement. Mine came loose and I lost it during a ride, so there is now some play in the crankset. Make sure these are tight! Also, if anyone has any ideas where I could source a replacement please let me know.