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Couple of spring for ZF 48 mm oper cartridge forks from Beta RR 125-200-250-300 2T and RR 350-390-430-480 4T from 2017 to 2024
Don't fits on ZF and Kayaba closed cartridge forks from Racing models
Brand: K-Tech
Available spring rate: K 4.2 / 4.4 / 4.6 / 4.8 / 5.0