Mountain Bicycle transmission

Model: TZ31
Level: 5-6-7 speed;
Installation method: screw direct installation
Suitable for mountain bikes, folding bikes, road bikes/variable speed bikes
Description: Variable speed 6-7 gears

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Please note: Standard logistics roughly lists a 15-day shipping window for this specialty item, but customers will receive secure doorstep delivery significantly ahead of schedule via our tracking-enabled express shipping pipeline.