Material: Aluminum Mounting: ISCG Weight: 216g Size: 32 – 38 teeth The X1-B features a replaceable aluminum bash guard and is available in ISCG and ISCG 05 standards. The sturdy bash guard protects the chainring and crank from damage. The "Low Profile" design ensures maximum ground clearance. Thanks to the industrial bearing sprocket, smooth chain operation is guaranteed. The chain guide is easily adjustable from the front with a single screw. All mounting components are available separately as replacement parts.