Dellorto number 01389. Manifold diameter: 24mm external. Air filter diameter: 35mm external. Application: Minarelli with electric choke, including Beta Malaguti. Specifics: Oil connection, vacuum connection, carb heating. Adjustment screws: left. This product is suitable for the following models: Benelli 491 GT 50 AIR 2T '97-'01 Benelli 491 Racing 50 H2O 2T '98-'01 Benelli 491 RR 50 H2O 2T '99-'03 Benelli 491 Sport 50 H2O 2T '97-'01 Benelli 491 ST 50 AIR 2T '99-'03 Benelli K2 50 AIR 2T '98-'02 Benelli K2 50 H2O 2T '98-'01 Benelli Naked 50 AIR 2T '01-'03 Benelli Pepe 50 AIR 2T '98-'02 Benelli Pepe LX 50 AIR 2T '01-'04 Beta ARK 50 AIR 2T '96-'98 Beta ARK 50 AIR 2T E1 '99-'01 Beta ARK 50 AIR 2T E2 '02-'07 Beta ARK 50 H2O 2T '97-'98 Beta ARK 50 H2O 2T E1 '99-'01 Beta ARK 50 H2O 2T E2 '02-'06 Beta ARK X-Type 50 AIR 2T E2 '05-'07 Beta ARK X-Type 50 H2O 2T E2 '03-'05 Beta Chrono 50 AIR 2T '93-'94 Beta Chrono 502 50 AIR 2T '95-'99 Beta Chrono R13 50 AIR 2T '94-'95 Beta Eikon 50 H2O 2T E1 '98-'02 Beta Eikon 50 H2O 2T E2 '03-'05 Beta Eikon Team 50 H2O 2T E2 '06-'07 Beta Quadra 50 AIR 2T '95-'99 Beta Quadra 50 AIR 2T E1 '00-'01 CPI Aragon City 50 AIR 2T '07-> CPI Aragon GP 50 AIR 2T '07-> CPI Formula R 50 AIR 2T '07-> CPI Freaky 50 AIR 2T '08-> CPI Hussar 50 AIR 2T '03-> CPI Hussar 50 AIR 2T <-'02 CPI Oliver 50 AIR 2T '03-> CPI Oliver 50 AIR 2T <-'02 CPI Popcorn 50 AIR 2T '03-> CPI Popcorn 50 AIR 2T <-'02 Derbi Easy 50 AIR 2T '97 Garelli Astro/ FX 50 AIR 2T '01 Garelli GSP 50 H2O 2T '09-> Garelli Tiesse 50 AIR 2T '08-> Garelli Xò DD 50 AIR 2T '10-> Generic 50.Com 50 AIR 2T '10-> Generic Cracker 50 AIR 2T '04-'09 Generic Epico 50 AIR 2T '10-> Generic Evolution 50 AIR 2T '04-'09 Generic Ideo 50 AIR 2T '05-'09 Generic Ideo II 50 AIR 2T '05-'09 Generic Onyx 50 AIR 2T '10-> Generic Race 50 AIR 2T '08-'09 Generic Race II 50 AIR 2T '10-> Generic Roc 50 AIR 2T '08-'09 Generic Roc II 50 AIR 2T '10-> Generic Xor 50 AIR 2T '05-'09 Generic Xor II 50 AIR 2T '10-> Generic Xor Stroke 50 AIR 2T '10-> Giantco Cyclop R10 50 AIR 2T '07-'08 Giantco Cyclop R12 50 AIR 2T '07-'08 Giantco Filly 50 AIR 2T '07-'09 Giantco G-10 50 AIR 2T '10-> Giantco G-10 DD 50 AIR 2T '10-> Giantco Lambros 50 AIR 2T '09-> Giantco Lambros DD 50 AIR 2T '09-> Giantco Lambros-R DD 50 H2O 2T '10-> Giantco MPS 50 AIR 2T '11-> Giantco Spartan 50 AIR 2T '08-> Giantco Spartan DD 50 AIR 2T '09-> Giantco Stealth Naked 50 AIR 2T '09-> Giantco Stealth Naked DD 50 AIR 2T '09-> Italjet Ascot 50 AIR 2T '91-'92 Italjet Ascot 50 AIR 2T '92-> Keeway Fact 50 AIR 2T E2 '07-'12 Keeway Fact Evo DD 50 AIR 2T E3 '11-'17 Keeway Fact Naked 50 AIR 2T E2 '10-'12 Keeway Flash 50 AIR 2T E2 '08-'11 Keeway Focus 50 AIR 2T E2 '05-'07 Keeway Goccia 50 AIR 2T E2 '10-'14 Keeway Hacker 50 AIR 2T E2 '09-'11 Keeway Hurricane 50 AIR 2T E2 '06-'08 Keeway Hurricane 50 AIR 2T E2 '09-'15 Keeway Matrix 50 AIR 2T E2 '06-'11 Keeway Milan 50 AIR 2T E2 '11-'14 Keeway Pixel 50 AIR 2T E2 '08-'11 Keeway RX8 50 AIR 2T E2 '07-'08 Keeway RY6 50 AIR 2T E3 '13-'17 Keeway RY8 50 AIR 2T E2 '07-'11 Keeway X Blade DD 50 AIR 2T E3 '16-> Keeway Zahara 50 AIR 2T E3 '16-> Kreidler Vabene 50 AIR 2T '11-> KTM ARK 50 AIR 2T '96-'97 KTM ARK 50 H2O 2T '97-'98 KTM Chrono 50 AIR 2T '93-'94 KTM Chrono 502 50 AIR 2T '95-'97 KTM Chrono R13 50 AIR 2T '94-'95 KTM GO 50 AIR 2T '93-'95 KTM GO 50 R13 AIR 2T '95-'98 KTM GO 50 R16 AIR 2T '94-'99 KTM Quadra 50 AIR 2T '94-'99 Malaguti Centro 50 AIR 2T '92-'93 Malaguti Centro SL1 50 AIR 2T '94-'98 Malaguti Centro SL2 50 AIR 2T '99-'01 Malaguti Ciak 50 AIR 2T '03-'06 Malaguti Ciak 50 AIR 2T '99-'02 Malaguti F10 50 AIR 2T '93-'95 Malaguti F10 Jet Line 50 AIR 2T '96-'03 Malaguti F10 Wap 50 AIR 2T '04-'07 Malaguti F10 Wap 50 AIR 2T '08-> (CPI) Malaguti F12 Phantom 50 AIR 2T '94-'98 Malaguti F12 Phantom 50 AIR 2T '99-'01 Malaguti F12 Phantom 50 H2O 2T '94-'98 Malaguti F12 Phantom 50 H2O 2T '99-'01 Malaguti F12 Phantom Digit 50 AIR 2T '02-'06 Malaguti F12 Phantom Digit 50 H2O 2T '02-'06 Malaguti F12 Phantom R II 50 AIR 2T '07-'09 (CPI) Malaguti F12 Phantom R II 50 H2O 2T '07-> Malaguti F15 Firefox 50 AIR '96-'98 Malaguti F15 Firefox 50 AIR '99-'01 Malaguti F15 Firefox 50 H2O '96-'98 Malaguti F15 Firefox 50 H2O '99-'01 Malaguti F15 Firefox Digital 50 AIR '02-'06 Malaguti F15 Firefox Digital 50 H2O '02-'06 Malaguti Yesterday 50 AIR 2T '97-'98 Malaguti Yesterday 50 AIR 2T '99-'02 MBK Booster Naked R12 50 AIR 2T '05-'12 MBK Booster Naked R13 50 AIR 2T '12-'16 MBK Booster Original 50 AIR 2T '04-'16 MBK Booster R12 50 AIR 2T '04-'14 MBK Booster Spirit 1.0 50 AIR 2T '13 MBK Booster Spirit Naked 50 AIR 2T '05-'15 MBK Equalis 50 AIR 2T '95-'98 MBK Evolis 50 AIR 2T '92-'95 MBK Fizz 50 AIR 2T '94-'00 MBK Flipper Light 50 AIR 2T '04-'06 MBK Mach G 50 AIR 2T '02-'12 MBK Mach G 50 H2O 2T '02-'15 MBK Nitro 50 H2O 2T '02-'12 MBK Nitro II 50 H2O 2T '13-'16 MBK Nitro Naked 50 H2O 2T '05-'12 MBK Nitro Naked II 50 H2O 2T '13-'16 MBK Ovetto 50 AIR 2T '02-'06 MBK Ovetto II 50 AIR 2T '08-'16 MBK Ovetto One 50 AIR 2T '13 MBK Sorriso 50 AIR 2T '90-'93 MBK Target 50 AIR 2T '91-'95 Renault Campus 50 AIR 2T '01-'03 Renault Campus 50 H2O 2T '02-'03 Renault F1 50 H2O 2T '01-'03 Renault Spécimen 50 AIR 2T '01-'03 Rieju First 50 AIR 2T '95-'99 Rieju First 50 H2O 2T '95-'99 Rieju RS NKD 50 H2O 2T '14-'15 Rieju RS- Sport 50 H2O 2T '14-'15 Rieju Windy 50 AIR 2T '92-> Sachs Speedforce 50 AIR 2T '08-> Sachs Speedjet 50 AIR 2T '08-> Sachs Speedjet R 50 AIR 2T '10-> Sachs SX1 50 AIR 2T '10-> Yamaha Aerox 50 H2O 2T '02-'12 Yamaha Aerox II 50 H2O 2T '13-'16 Yamaha Aerox Naked II 50 H2O 2T '13-'16 Yamaha Axis 50 AIR 2T '95-'98 Yamaha Beluga 50 AIR 2T '89-'93 Yamaha Breeze 50 AIR 2T '94-'00 Yamaha Bw's Easy 50 AIR 2T '13 Yamaha Bw's Naked 50 AIR 2T '05-'16 Yamaha Bw's Original 50 AIR 2T '04-'16 Yamaha Bw's R12 50 AIR 2T '04-'16 Yamaha CRZ50 AIR 2T '91-'95 Yamaha CT50 AIR 2T '90-'93 Yamaha JogR 50 AIR 2T '02-'15 Yamaha JogRR 50 H2O 2T '02-'15 Yamaha Neo's 50 AIR 2T '03-'06 Yamaha Neo's Easy 50 AIR 2T '13 Yamaha Neo's II 50 AIR 2T '07-'16 Yamaha Vino 50 AIR 2T '04-'06 Yamaha Why Light 50 AIR 2T '04-'06 Yamaha Zest 50 AIR 2T '92-'95