Crank & Drivetrain: Shimano 7-speed gear system paired with a 1/2" * 3/32" * 46T crankset

perfectly blending form and function

Ideal for All Heights:

mode selection

and toughness make it a reliable choice for long-term use

universal bike bell aluminum alloy mountain road bike horn alarm for safety cycling bicycle handlebar bell accessory easy to use Color:Red Crank & Drivetrain: Shimano 7-speedSPECIFICATIONS Brand Name: cycle zone Choice: yes Color: Black,Green,Blue,Red,Sliver,Gold Fitted for: Mountain Bicycle,Bicycle Function 2: Mountain Bike Bells Hign concerned Chemical: None Material: Aluminium Alloy,Metal+ Plastic Model Number: 50001 Name: Bicycle Warning Bell Origin: Mainland China Type: Ordinary Bell,Bicycle accessory Item Details 100% brand new Condition: Brand New Made of metal+ plastic Easy to fix to bike Nice and loud sound Light