The Shiv TT uses the current Venge seatpost, with a 390mm length and +20 mm offset for all sizes. 0mm offset options are available.

Due to an offset seat tube on the Shiv TT frame, the Venge +20 mm fits as 0mm offset post.  The Venge 0mm seatpost fits as a forward 20mm offset. 

The Di2 A-junction is placed at the rear of the seatpost, S189900103. For eTap models, a block off plate is available, S199900080.

A new seatpost wedge has been designed, S204700002.