Original Gear set from Shimano Indonesia compatible with all bicycle with cable guide option else you might need to use zip tie to hold the gear wire
12-42, Seven Speed Mountain Bike Reviews Forum
You, Should Try A Friction Thumb Shifter
Bicycle Crankset Shimano FC-TY501 for 3x6/7/8 Speed 170mm length – OMOBIKES
Bicycle Rim 700c / 29 Inch Fully Laced Alloy Wheel - Omobikes – OMOBIKES
Can I add gears to a single speed bicycle if I wanted to in the future? - Quora
Bicycle Chain KMC Z8 for 8 & 24 Gear with 116 links upto 10000km Life – OMOBIKES
Bicycle Seat & Saddle Cover, Ultrasoft Foam
Bicycle Handle bar, Riser Steel handlebar 680mm Length – OMOBIKES
Shimano Gearset - Non Gear Bicycle to 7 Gears conversion - Omobikes – OMOBIKES
CyclingDeal Conversion Kit Fixie Bike Single Speed Compatible with Shimano Sram Cassette Freewheel Hub Adaptor - for Mountain and Road Bike Gear Cog Spacers 16 Teeth : : Sports & Outdoors
MS Jcb Star Gear Kit, Packaging Type: Box at Rs 1650/piece in Kurukshetra