bicycle rear derailleur parts

Product positioning

An entry-level gear shifting system specially designed for urban commuter vehicles and student bikes, meeting the basic gear shifting requirements for daily riding
Core characteristics
High cost-performance structure
It adopts cold-forged iron-based main body and is treated with chrome plating for rust prevention on the surface
Simplifying the spring structure reduces the failure rate, and the maintenance cost is less than one-third of that of aluminum alloy products
Basic variable speed performance
Supports 6-7 speed card-type flywheels, with a maximum tooth capacity of 28T
Bidirectional tension adjustment screw, compatible with mainstream domestic indexers
Durable design
Passed 8,000 variable-speed cycle tests
The anti-entanglement guide wheel design reduces the interference of branches and sand
Technical parameters
Material: Q235 steel main body + steel spring
Adapted chain width: 7.1-7.3mm
Weight: 312g (including fixing bolts)
Operating temperature: -20℃ to 60℃
Adapted vehicle model
24/26-inch city bicycles
Student shuttle bus
Shared bike modification
Precautions
Lubricating oil should be applied regularly to prevent rust
It is not recommended for professional off-road scenarios