Mrp 2x 39-42t White Iscg

The 2x is designed to work seamlessly with the new wave of 2x10 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 requ

• Raised top fin profile prevents the chain from dropping to the BB shell
• Compatible with 9 and 10 speed drivetrains
• Dual pulley design provides precise chain engagement while reducing noise and drag