Goodbye 3x7. Hello 1x9. Plus a few more upgrades : r/xbiking
3X9 XTR/XT converted to 2x9 or 1x9/11 ??? | Mountain Bike Reviews Forum
chain falling off new 1x9 conversion | Mountain Bike Reviews Forum
Going To 14 Speed
Wolf Tooth Drop-Stop 1x9 Drivetrain Experiment - YouTube
Amazon.com : Bike Chain Guide MTB Bike Protector Road Bicycle Mountain Cycle Chain Guide Tensioner with Hollowed Design for Single Disc Sprocket, Front Dial Smooth Driving(Black) : Sports & Outdoors
Budget 1x10 With Old Shimano Tech - BIKEPACKING.com