FLANGE for INTAKE RUBBER Ø 21-28 MHR applies to: Code 1613524 CARB. KIT PHBG 21 REED VALVE/CABLE starter for MOTO 50 1613525 CARB. KIT PHBG 21 REED VALVE/DIRECT starter for MOTO 50 1613522 CARB.KIT PHBH 26 MHR with REED VALVE for MOTO 50 1613526 CARB.KIT VHST 28 MHR TEAM with REED VALVE for MOTO 50 (DERBI-MINARELLI) 5715844 MHR C-one COMPL. ENGINE CRANKCASE (for PIAGGIO engine) 5716654 MHR C-one COMPL. ENGINE CRANKCASE (for YAMAHA engine) 5715845 MHR RC-one COMPL. ENGINE CRANKCASE (for PIAGGIO engine) 5716668 MHR RC-one COMPL. ENGINE CRANKCASE (for YAMAHA engine) 2013800 X360 FKM INCLINED INT.MANIF. KIT Ø 21-24,5 L.27 (DERBI-MINARELLI) 2013801 X360 FKM INCLINED INT.MANIF. KIT Ø 28-35 L.27 (DERBI-MINARELLI)