This is the MRP 2X Chainguide – 36-38 Tooth Double ISCG-05 Fitting with Integral Bashguard. The 2x is designed to work seamlessly with the new wave of 2×10 drivetrains being specified on many new mountain bikes. These new drivetrains created new challenges to chain management with their unique gear ratios, chain lines, and impact protection requirements. The 2x solves all of these challenges. To create the 2x guide, MRP began the process of applying our range of technologies and systems to find the optimal solution for 2×10 drivetrains, and through collaboration with SRAM and extensive testing it was decided that the ultimate light weight solution was a chain guide sharing elements of the G2sl, LRP, and XCG products. Notable is the absence of an outer capture ring on the cranksets, relying on the front derailleur and lower pulley assembly for complete chain retention.