Shimano Altus Sl-m315 M310 Bicycle Bike Shifter Lever 2x7 2x8 3x7 3x8 Speed 14/16/21/24 Speed Switch Shifter Shift Lever Trigger - Buy Shimano Tourney Bicycle Bike Sl-ef41 Ef51 Ef500 Shifter 3x7 Speed
Shimano Altus M171 6/7/8-Speed 170mm 24/34/42t Square Crankset with Chainguard, Black - Walmart.com
Altus Rear derailleur offering Crisp Performance on- and Off-Road for 9-Speed drivetrains. Wide Link Design Increases Design and Service Life. 11-Tooth Pulleys for Reduced Pulley wear and Chain