Chain tensioners screw in , in place of Rear D. Shimano Alfine has their own, As Does Rohloff .
Big distributors like QBP have a back room with people building the wheels , the distributor cost is lower than a retail shop can sell them for .
because they have to stay in business with the retali margin on each part . got from that same distributor.
Markup instead, its on the finished wheel .
Last edited by fietsbob; 06-06-14 at 03:26 PM.