Campagnolo Battery EPS 12s Power Unit V4

The Campagnolo 12 EPS V4 Power Unit's fairly slender shape makes it compatible with all the seat posts on the market, is quick to fit with one of the two different adaptors, the choice of which will depend on the size of the post. Even longer life for this, the sector's leading battery, thanks to a 10% increase in its charge capacity, meaning it rarely needs charging. The battery pack and circuit board of the V4 Power Unit are in a sealed unit measuring 259 mm in length and just 16.6 mm in diameter. Its small diameter (16.6 mm) means the V4 Power Unit can be fitted much faster, inside the seat post using one of the two adaptors available for √∏ 27.2 or √∏ 31.6 mm. The Power Unit can also be fitted inside the down tube or the seat tube using the water-bottle cage fasteners. 135 grams.