To be used with with Columbus headtubes XCRK18250 and XCRK18600
using internal-cups ZXCRCALUP / ZXCRCALDOWN
to host 1-1/8” forks
To be used with Columbus headtube XCRH18240
using internal-cups ZXCRCAL38UP / ZXCRCAL38DOWN
to host 1-1/8” forks
To be used with Columbus headtubes CYRA18240 and CYRA18600
using internal-cups ZCALA28.6UP / ZCALA28.6DOWN
to host 1-1/8” forks