REGEAR YOUR SINGLE SPEED BIKE - Change Rear Sprocket Gearing Cogs from 19 tooth to 18 tooth

Описание к видео REGEAR YOUR SINGLE SPEED BIKE - Change Rear Sprocket Gearing Cogs from 19 tooth to 18 tooth

EASY MODIFICATION - Easier Riding from Your Single-speed Bike / Change Rear Sprocket Change Cogs 18 tooth

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