Rockshox xc 30 tk solo air forks 9mm qrevery mountain biker can benefit from the rockshox technologies and performance features when choosing an xc 30 the xc series is a high value line of entry level forks and are stiff performance oriented and complete with a high performing and light weight solo air spring features materialaluminium upper magnesium lowers forged 6061 t 6 aluminium crown springsolo air adjustmentsexternal rebound turnkey lockout openpedallock steerer1