Joint between pot and silencer mécaboite DOPPLER WR7, ER1, GP8.0

Here is the spare seal sold to the unit for muffler DOPPLER WR7 GP8.0 and ER1 on 50cc motorcycle, mécaboite engine AM6, DERBI and other models. It is mounted between the pot and the silencer, good quality it will start on a perfect seal.