A mountain bike drivetrain consists of lots of moving parts, and could be considered to be the most important part on a mountain bike. There are bearings in the bottom bracket, moving parts with the rear derailleur, chains specific to how many speeds are on the bike, gear range, and chain retention systems like chainguides. All of these come into play for a mountain bike drivetrain and if one doesn't work right there might be an issue. 

Some of the top brands to make drivetrain parts are SRAM, Shimano, Wolftooth, Absolute Black, Wheels Manufacturing, E*Thirteen, MRP, TruVativ, OneUp, Chris King, RaceFace, and Ceramic Speed. SRAM and Shimano make derailleurs, cranksets, bottom brackets, chains and cassettes. You also have brands like Wolf Tooth, Absolute Black, OneUp, MRP and E*thirteen that make aftermarket parts like chainguides, chainrings, both round, oval or elliptical, these all help either keep your chain on or help you pedal more efficiently. 

If you are looking to upgrade your mountain bike drivetrain to a 1x11 or 1x12 system, looking for some replacement parts, or just trying to improve on what you have, our team of experts can answer any questions you might have, so feel free to contact us to get those questions answered.