Overfast Y1RS Frame Cap

COLNAGO Y1RS Lightweight Battery Holder – The Ultimate Weight-Saving Upgrade

Ultra-light yet incredibly strong. Tested to withstand over 2,000 extreme drop tests from 100 cm with battery installed, and requires dozens of kilograms of force to bend. Built with generous strength margins, so you can ride with complete confidence.

Simple installation — just slide the screw to the marked scale line and tighten.

Includes titanium screws, with a total weight of only 9 g. A serious weight saver.
Replace the original two bottle cages + battery holder with this holder and two lightweight bottle cages, and you can reduce your bike’s weight by over 80 g.