Shimano Gear Set — Upgrade 7 Speed to 21 Speed

Shimano 21-Speed Upgrade Kit – Transform Your 7-Speed Bike to Full 21-Speed

Maximize your gearing options with this complete Shimano upgrade kit, featuring front derailleur, shifter, and triple crankset to convert your 7-speed bike into a versatile 21-speed drivetrain.

Key Benefits:

• Complete front drivetrain upgrade provides triple the gear range for climbing and speed
• Shimano quality components ensure reliable, smooth shifting performance
• Versatile 24-34-42T gearing tackles steep climbs and fast flats with ease

Technical Specifications:

• Shifter: Shimano EF500 (3-speed, left side)
• Front Derailleur: Shimano TY500 (model: AFDTY500TSM6)
• Crankset: Triple chainring, 24-34-42T
• Crankset Material: Steel or alloy (design may vary)
• Final Configuration: 21-speed (3x7)

Compatibility:

• Designed for bikes with existing 7-speed rear drivetrain
• Requires frame with front derailleur mount and cable routing

What's Included:

• Complete 21-speed upgrade kit (shifter, front derailleur, crankset)

Important Notes: Ships pan-India in 2-3 working days. Verify frame compatibility and bottom bracket type before purchase. Professional installation strongly recommended. Standard Shimano warranty applies