MTB Bicycle 21-Speed Brake/Shift Lever Combo

The product specifications are as follows: This is a 100% brand new item, compatible with a front 3-gear, rear 7-flywheel, and 21-speed positioning transmission system. It is designed for use with handlebars measuring 21-23mm in diameter, and it comes in a sleek black color.

The key features of this product include a 21-speed transmission system and an ergonomic design for the positioning and trigger handle. The wider gear display provides enhanced visibility, allowing users to quickly glance at the current speed. The operation is easier and has a lower gear ratio, making it more user-friendly.

This package includes two transmission units - one with 3 speeds on the left and one with 7 speeds on the right - as well as two brake lines. The compatibility extends to the front 3-gear, rear 7-flywheel, and 21-speed positioning transmission system, ensuring a seamless integration with the target bike model.

The scope of application for this product is handlebars ranging from 21 to 23 millimeters in diameter. The 21-speed transmission, along with the ergonomic design of the positioning and trigger handle, provide a smooth and efficient riding experience. The wider gear display makes it easy to keep track of speed changes with just a quick glance.

In addition to the main components, this package also includes a 2-piece transmission set (left 3-speed and right 7-speed) and 2 brake lines. This comprehensive set allows for a complete upgrade or replacement of the existing bicycle shifting and braking system.

The 21-speed shifter set, with its 3x7 configuration, is a versatile and reliable choice for various bicycle models. It includes a 7-speed shifter and a 3-speed shifter, providing a total of 21 distinct gear options for optimal performance and control.

This 3x7 shifter brake combo is designed to seamlessly integrate with your 21-speed bicycle, offering a smooth and responsive shifting experience. The 7-speed and 3-speed levers work in harmony, giving you precise control over your bike's gearing and braking systems.

Whether you're an avid cyclist or just looking to upgrade your ride, this 21-speed shifter set is a fantastic choice. It features a 3x7 configuration, providing you with a wide range of gear options for tackling various terrains and riding conditions. The included brake levers further enhance the overall functionality and safety of your bicycle.

In summary, this comprehensive 21-speed shifter set, with its 3x7 configuration and compatible design, is an excellent upgrade for your bicycle. It offers a seamless integration, improved visibility, and enhanced user-friendliness, making it a must-have for any cyclist seeking to optimize their riding experience.

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