Plastic Bike Exhaust Sound System Turbo Spoke Bicycle refitting Motorbike Engine Noises Pipe with 3 adjustable Turbo Motorcycle Sound

Description

Material: Plastic, copper. Size: 38.5*8*8cm/ 15*3.15*3.15''. NOTE: 1) The bicycle exhaust system is plastic material, not metal. 2) Fits most bikes of Bicycle Motocross( BMX), and Mountain bike. 3) It will can not install if the installation site is not cylindrical or too thick. 4) Can not make your bike faster. 5) The installation must be done by adult, please be careful to install. INSTALLATION: 1. Stuck in the side of the bike (the side with no chain). 2. Install the Motocard. 3. Install the bicycle exhaust system. 4. Install the tail. finish. Warning: The product package contains small parts, please keep it, do not let young children under 3 years of age contact to prevent swallowing and other risks. Special reminder: Installation must be completed by adults, open the package for installation Please be careful to prevent the operation caused by improper injury.