
The Bitubo MFORK Fork Spring Kit, part number MH55, is a front-suspension service and upgrade option for 1997-2006 Honda CBR600F. This kit uses K=0.95 spring rate. It is aimed at riders refreshing the fork or changing the spring setup without replacing the complete front end, keeping the work centered on the spring and cap components specified for the application.
Key Features & Specs:
Fitment:
Honda:
About Bitubo MFORK Series:
The MFORK line is Bitubo’s fork-spring upgrade program, with application-specific linear or progressive spring rates and dedicated fork oil where specified. It is the logical first suspension move when the stock fork needs better support or a spring rate better matched to the motorcycle and its use.
About Bitubo Suspension:
Founded in 1963, Bitubo develops motorcycle suspension and damping systems for street, racing, V-twin, scooter, Vespa, and off-road applications. Bitubo continues to design, engineer, develop, and manufacture its suspension products in Italy, drawing on decades of R&D and competition experience. For Elite Race Fab customers, it is the kind of hardware we like to see: purpose-built components, useful adjustment where the application calls for it, and a clear focus on getting the chassis working the way it should.