The Zero Setback seatposts have garnered a lot of popularity with MTB's and bike packing riders for their strength and ease of adjustment.
The seatpost is internally ovalized to keep the weight down and the head is integral with the post, not pressed on as on many modern posts. These factors combined makes for a super strong and light perch.
All forms of adjustment can be done with a single 5mm wrench to the side of the clamping mechanism.
27.2 x 400mm only.