L-TWOO R2 2x7 Speed Groupset w/ Shimano Rear & Front Derailleur & Chain

L-TWOO R2 2x7 Speed Groupset w/ Shimano Rear Derailleur & Rear Cassette 12-32T

Shimano GS200 7 Speed Groupset

Shimano STX / Alivio / CODA 7 speed 3x Mini Groupset - Vintage Mountain Bike

Shimano Tourney TY301 3×7S MTB Full Groupset Crank Derailleur Cassette Chain

Shimano Deore 1x11-speed Groupset w/36T Chainring

Shimano CUES Groupset - Rear Derailleur, Shifter, Cassette

LTWOO A7 10-Speed MTB Shifter & Rear Derailleur Kit w/ Chain Cables