bgm says:
"Remote airfilter system based on the bgm PRO airhose and one of the high flowing Marchald foam filters.
In comparison with the standard intake hose, the bgm PRO air intake hose has a higher volume on the side of the carburettor. The air intake hose is available in four different connection sizes for the carburettor: 40 mm (Dellorto PHBL 25), 42mm (Dellorto PHBH 28-30), 45 mm (Mikuni TM24 + Jetex SH22) or 50 mm (Keihin PWK 28, Polini 28 – 30)
In the download area you can find the chart which shows the difference between the standard Lambretta dl/GP air intake hose and the bgm intake hose. The comparison was made using the Racetour cylinder 225, crankshaft with 58 mm stroke, Keihin 28 PWK, bgm air filter box and bgm Big Box exhaust. With a foam filter instead of the airbox you will gain a further power increase.
Another significant advantage of the bgm PRO air intake hose is the drain system at the bottom of the intake hose: the fluid expelled from the carburettor does not accumulate in the hose and this prevents the idle speed system from clogging."
Product safety information
Manufacturer information:
Scooter Center GmbH
Kurt-Schumacher-Str. 1
50129 Bergheim-Glessen
Deutschland
info@scooter-center.com
https://www.scooter-center.de