After spending an hour trying to figure out how to fit this $150 ISCG version of the MRP 2x chain guide this thread has confirmed that I’m an idiot. As a new owner of a gently used 2011 Trek Remedy 9.7 I was stoked to fit this chain guide for my run down Porcupine Rim (Moab, UT) later today.
Lessons learned. Only am 8mm Allen is required to remove the crankset. Don’t pay attention to the 16mm locking ring. The frame is NOT ISCG compatible.
FYI the SRAM gen 2 deraileurs are forecasted to hit shelves in August 2012 and will offer similar chain tensioning benefits to the Shimano XTR Shadow plus without the required maintenance.