OVERFAST Ultralight Battery Holder for Colnago Y1RS

Description COLNAGO Y1RS Best weight loss accessories! Battery Holder！Lightweight, But strong！It can withstand more than 2000 extreme drop tests of 100 cm with battery weight. It takes dozens of kilograms to bend it. Enough redundant strength design, so you do not have any worries!Simple installation, you just need to slide the screw to the scale line below and lock it!All accessories include titanium screws and the total weight is only 9g！ You can save a lot of weight! If you replace the 2 original bottle cages battery holder and use 2 lightweight bottle cages, you can even reduce the weight by more than 80g.