@crossedthread Guards are SKS Chromoplastics in 65mm. Got mine locally but they're currently only £15 at Planet X.
@hvsds Seems like it but haven't gone on a proper test ride yet. If it feels too relaxed then I might flip them back again.
@jj72 No, it's a VeloSolo 6-bolt disc cog on an ordinary mountain bike hub (the other side is a freehub with nothing on it).
@Slappingpythagoras I actually like the aesthetic now. Feel like the silver matches the cranks, handlebar etc. I am a mudguard evangelist; just thought it looked weird before with the knobby black tyres.