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document updated 13 years ago, on Aug 19, 2011
Rohloff's Downhill tensioner
— looks quite rugged?
chain guides
are routinely used for cyclocross, downhill, etc
there's LOTS of variations on these.....
[1]
lots of praise for these
pictures of how they're set up on a DH bike
video
MOTORCYCLES regularly use chain-guides
my biggest concern is making sure the drivetrain can handle enough power/torque... you're not going to tell me that motorcycle drivetrains can't handle a ton of power/torque