
It's on the front right for a couple of reasons. Firstly, it puts the disc brake forces into the dropout, rather than out of it so you won't get any axle movement with heavy disc braking. Secondly, it means that regardless of what caliper you're using you can always get to the mudguard eyes on the back of the dropouts. There are just too many possible caliper configurations to say 'everything works with mudguards' so we put the mount properly out of the way.