Right shifter is a trigger-type 3 or 6 speed shifter with one lever for downshifts and a thumb button for up-shifts. Left speed shifter is SIS type. Bottom Bracket. Speed shift indicator. Cassettes-7 Speed.
Shimano Tourney TZ 3×6 Speed Derailleur Groupset SL-RS35 FD-TZ500 RD-TZ500 Gears
Shimano Tourney TX51 3 x 6 / 7 Speed Front Derailleur - 31.8mm or 34.9mm Clamp
Shimano Tourney Altus 3×7 Speed Derailleur Groupset SL-M315 FD-TY510 RD-TY300
SHIMANO Tourney SL-TX30 3×6 / 3×7 speed Shifter MTB Bike Bicycle Thumb Shifter
Shimano Tourney / TY SL-RS45 Revoshift, 3-Speed Front, Left Hand, with Optical Gear Display
