Tern Telecopic Seatpost, black Our Telescopic Seatpost extends 90 mm longer than our stock seatpost, but thanks to its unique design, it’s 120 mm shorter when retracted. It features a dual-bolt head design for precise saddle adjustment, and an inner post diameter of 27.2 mm, so you can customize it with other posts. It’s the perfect upgrade for tall riders looking for the perfect fit, or any rider looking to make their bike more compact. Features          Reduces folded bike size with 120 mm (4.7”) shorter retracted length Up to 90 mm (3.5”) longer than our stock post Compatible with 33.9 mm seat tubes Dual bolt head design for precise saddle adjustment Endless possibilities for customization Color(s)         Black Dimensions (L x W X H)         Lower section: 420 x Ø33.9 mm (16.5” x Ø1.3”) Upper section: 350 x Ø27.2 mm (13.8” x Ø1.1”) Weight         710 g (1.6 lb)