XLAB Torpedo Versa 500 Hydration System - Red New-in The Thomson seat post has

The Thomson seat post has all parts captive and can easily be attached to a seat without dis-assembly

allowing the rider to shift gears even during the most critical moments

8mmInternal cable routingShimano Di2 compatibleIntegrated cap

Compatibility: BSA or T47 Threaded BB ShellsFeatures: Custom bearings

XLAB Torpedo Versa 500 Hydration System - Red New-in The Thomson seat post hasCutting edge aerodynamic carbon fiber aerobar hydration system with award winning telescoping computer mount. Raise the computer mount up to tuck in a refill bottle for race day, or lower it down for a standard bottle to maintain the optimal view for training days. Features Award recognition: Only bike accessory nominated for the Interbike Innovation AwardDual setup: Seamlessly switch between refill or standard bottle via telescoping computer