A-Q series metering rods provide ideal fuel profiles for many applications using 36, 38, and 40mm size SmartCarbs
D-F series metering rods are optimized for stronger bottom end response in some 250/300cc enduro-minded applications using 36 and 38mm size SmartCarbs.
F-J series metering rods are optimized for stronger bottom end response in 250/300cc KTM, Husqvarna, and Sherco 2-stroke enduro motorcycles using the all-new 36 and 38mm size SC3 model SmartCarbs. F-J metering rods are not recommended for use in older SC2 model SmartCarbs.
B-E series metering rods provide ideal fuel profiles for some applications using 36mm size SmartCarbs, particularly the KTM/Husqvarna 150cc 2-stroke dirt bikes.
E-f series metering rods provide ideal fuel profiles for many applications using 26 and 28mm size SmartCarbs, including most fast and high revving 65-112cc mini motocross dirt bikes, 125-300cc trials bikes, 180-300cc paramotors, competition pit-bikes, and more.
C-A series metering rods are specialized for use in 28mm SC2 and SC3 SmartCarb equipped KTM Freeride dirt bikes.
