This Shimano Fc - m361 front crankset is a great choice for mountain bikes. It's designed for square bottom brackets with an axle length of 122.5mm or 123mm. The 2 - piece construction makes it rigid and durable. It features Hyperdrive SG - X chainrings that offer smooth performance. A pre - installed chain guard protects your legs and clothes. It's Dual SIS compatible, and the steel chain wheels can be easily replaced. The crankset comes in a sleek black color and is suitable for 7 - 8 speed drivetrains, with chainring BCDs of 104 and 64. It fits 135/142 MTB hubs and has a 9/16' pedal spindle with a square taper JIS spindle interface. It's perfect for mountain biking enthusiasts.

Using this Shimano Fc - m361 front crankset is easy. First, make sure your bike has a square bottom bracket with an axle length of 122.5mm or 123mm. Install the crankset on your bike following the standard installation procedures. When riding, the pre - installed chain guard will protect your legs and clothes from the chain. For maintenance, regularly clean the chainrings and the crank arms with a mild detergent and a soft cloth. Check the tightness of the bolts on the crankset before each ride to ensure safety. If the steel chain wheels get worn out, you can easily replace them. This crankset is suitable for 7 - 8 speed drivetrains, so make sure your bike's drivetrain matches. Also, remember that it's designed for mountain biking, so use it on appropriate terrains.