Air intake hose in the BGM PRO range, suitable for Lambretta series 3 - Li, LIS, SX, TV and DL / GP and late series 2 air box elbows to fit the Dell'orto PHBH 26, 28 and 30mm carburettor bellmouths. Can be used as standard through the airbox or can be used to run a remote filter in the top. 
 
A big advantage of the BGM PRO intake hose is the lower outlet. Here the Spitback from the carburettor isn't collected in the hose so the idle system cannot clog. 
 
Diameter Ø - 42mm (Dellorto PHBH).
 
 
Part number: LUBGM2570D42