Originally Posted by
Arcanum
I could've sworn there was another thread in the last month or two mentioning that the former can happen on occasion in cold temperatures. The grease becomes too thick and prevents the hub from re-engaging or something? I might be misremembering.
I was the OP in that thread (see- Cassette problems @ -25f in the bicycle mechanics threads) After much input it was decided that the grease in the free hub was too thick and needed repacked with a lighter grease. There are some very good links in the OP. A complete disassembly was required. I was too lazy so I just removed the axle assembly and bearings and then rinsed it with good, clean solvent, and lubed it with an all season lube. I haven't had any problems since but I haven't rode in those temps again. (Thank God) -15f is about the coldest since.