More and more bikes are running electronic drivetrains and almost any newer frame accommodates routing for Di2 batteries housed in a seatpost. If you're ready to take the plunge into Di2 with a new build or are converting an existing steed over to electronic, the Vibe Carbon Di2 Seatpost is a great option. It's constructed of strong unidirectional carbon fiber and is lightweight, stiff while laying down the power, and has some built-in compliance for rough roads. The I-bolt side clamp system fully grasps round saddle rails and oversized oval rails with the included clamp. The clamp itself doesn't take up much real estate on the rails so you'll get a wide range of fore-aft adjustability to dial in fit. Understated graphics look great when paired with a PRO cockpit but doesn't look out of place if you are running another brand's bar and stem.All versions come in 400mm length and are happy to house a Di2 seatpost battery or go without. At the bottom of the post, two flat sections inside the tube secure the battery. Up top, aluminum side clamps, composite inner rail wedges, and titanium hardware all work to clamp your saddle as safely and as lightweight as possible. The single bolt design makes saddle setup and fitting easy with virtually infinite angle adjustments and a wide window of adjustment for fore-aft.The setback is available in both 0 and 20mm versions and considering that you don't have to add additional plugs or bungs to secure a battery in the post, it comes in at a very competitive 214 grams.