Originally Posted by
zzyzx_xyzzy
Full fenders with a LONG mudflap on the front will give you 80% of the benefit of a chaincase as far as keeping crud off the drivetrain and infinity% of the benefit of a chaincase as far as keeping your feet dry. One is still susceptible to the dreaded chainring tattoo though.
Wasn't there a downhill MTB made with a gearbox in the frame, which, when opened, contained a regular derailleur system?
Yes, I think you right. A long mudflap will help. I have big SKS fenders, bug the flap at the end is small.
I don't think this will solve the problem. Again, closed system will be better.
Kfir