This spacer kit is specific to the Cervelo 5-series frameset / bike design and used with the ST31 Carbon and ST32 Alloy stems. It includes two different height split-type spacers in the shape of the C-shapedfork steerer and ST31/32 stem design. The spacers and covers are designed with a channel to integrate perfectly with the internal wire/housing routing system.

The split spacer system allows the stem height to be adjusted easily for fit purposes without wire/housing disassembly. Cervelo proved the effectiveness of this system S-series models before bringing it to the more versatile 5-series designs. Please keep in mind that the standard Caledonia and Aspero models feature a round steerer tube and thus uses normal round spacers.