Sturdy and durable; extremely sharp; fine ductility; long service life; high quality. Inner Diameter (intake side): Approx 17.5mm; Outer Diameter (intake side): Approx 23mm; Diameter (air filter side): Approx 37.4mm. Fits models: Aprilia Mojito Custom 50 (Piaggio engine); Aprilia Sportcity ONE 50 (2-stroke); Aprilia Sportcity Street 50 (2-stroke); Aprilia SR 50 Funmaster LC (from 03/2003) (Piaggio engine); Aprilia SR 50 Street LC (water) (Piaggio engine); Aprilia SR 50 R LC (water) (from 2005) (Piaggio engine); Aprilia SR 50 Racing LC (water) (from 07/2003) (Piaggio engine); Aprilia SR 50 Sport LC (water) (from 07/2003) (Piaggio-Motor-DiTech); Derbi Atlantis 50 AC (air) (from 06/2002) (Piaggio engine); Derbi Atlantis 50 LC (water) (from 06/2002) (Piaggio engine); Derbi Boulevard 50; Derbi Bullet 50; Derbi GP1 50; Derbi GP1 50 Revolution; Gilera DNA 50; Gilera Easy Moving 50; Gilera Ice 50; Gilera Runner 50 DT (until 1999); Gilera Runner 50 (YOC 1999–2000); Gilera Runner 50 (Bj. 2004–08/2005); Gilera Runner 50 (YOC 2001–2004); Gilera Runner 50 SP (from 08/2005); Gilera Stalker 50 (from 1999); Gilera Stalker 50 (until 1999); Gilera Stalker Naked 50; Gilera Storm 50 (from 2007); Gilera Storm 50 (until 1999); Gilera Typhoon 50; Gilera Typhoon-X 50; Italjet Jet-Set 50 (2-stroke); Italjet Torpedo 50 (Piaggio engine); Piaggio Diesis 50; Piaggio Fly 50 (2-stroke); Piaggio Free 50 (from year 1999); Piaggio Free 50 (until 1999); Piaggio Liberty 50 (2-stroke); Piaggio NRG 50 LC (water) (SAL1T); Piaggio NRG 50 MC2 LC (water) (C04); Piaggio NRG 50 Extreme AC (air) (C21); Piaggio NRG 50 Extreme LC (water) (C22); Piaggio NRG 50 MC3 LC (water) (C320000); Piaggio NRG 50 MC3 AC (air) (C31); Piaggio NRG 50 Power LC (water) (C45100); Piaggio NRG 50 Power AC (air) (C45300); Piaggio NTT 50; Piaggio Quartz 50; Piaggio Vespa S 50 (2-stroke); Piaggio Sfera Restyling 50 (C01); Piaggio Storm 50; Piaggio Typhoon 50 (C48) (from 2010); Piaggio Typhoon 50 (TEC1T); Piaggio Typhoon 50 X (TEC2T); Piaggio Typhoon 50 XR (C19 / C29); Piaggio Zip 2 50 (2-stroke); Piaggio Zip 2 SP 50 LC (water); Piaggio Zip Base 50 (from year 1999); Piaggio Zip SSL 25 (up to 1999); Piaggio Zip Fast Rider 50; Piaggio Zip SP 50 H2O; Piaggio Zip SSL 25 (from year 1999); Piaggio Vespa ET2 50 (2-stroke); Piaggio Vespa LX 50 (2-stroke); Piaggio Vespa LXV 50 (2-stroke); Piaggio Vespa S Sport 50. Color: Black + Silver Material: Metal Package Contents: 1 x Carburetor Note: Light shooting and different displays may cause the color of the item in the picture to vary slightly from the actual product. Measurement error is +/- 1–3 cm.