Factor supplies lightweight, finely tuned Black Inc seatposts with their framesets to ensure the ride quality and characteristics of the post match those of the frameset. The O2 and O2 Disc framesets come with a round 27.2 x 350mm full carbon model, with most sizes supplied with a 25mm offset version. Black Inc does offer this post in both Zero offset and 25mm offset models.

For Black Inc and Factor, the seatpost represents is a crucial part of the modern day road racing bicycle as it is the exposed foundation of the saddle, where riders generate their pedal power from. Using a blend of different types of carbon fiber materials, Black Inc is able to produce a seatpost that features some vertical compliance and at the same time being efficient in transferring the rider’s pedal power to the pavement. This is a fine balance and also includes torsional rigidity an absolute minimal of lateral flex takes place under the hardest in the saddle efforts.