What's puzzling about that? If you want a shorter wheelbase, there's probably enough clearance/room in the trackends to remove a link from the chain, and move the whole thing forward; BUT, that wouldn't leave you having to reinstate the link if you wanted to get a bigger chainring or sprocket.
What's puzzling about that? If you want a shorter wheelbase, there's probably enough clearance/room in the trackends to remove a link from the chain, and move the whole thing forward; BUT, that wouldn't leave you having to reinstate the link if you wanted to get a bigger chainring or sprocket.