Posted on 26th, January 2011 about XCR BB Mount Chainguide
This chain device is brilliant, so far I have ridden over 50 miles of welsh trails without a single dropped chain. Its awesome value for money and looks nice and stealthy in black. There was some slight chain rub in the top and bottom chain ring but the plastic has worn down and no longer makes any noise. My only comment, and i'd say this about a number of superstar products, is that there was no fitting instructions so there was some trial and error to get it correctly positioned.