Tracking your power output and training data has never been easier or more accessible. Giant’s all-new Power Pro system delivers accurate power metrics through an integrated system that’s precise, reliable and simple to set up. The pros know that the most effective training is smart training, so get in the know and start training with power.

Charging cable for Giant Power Pro GPC 2 USB charging harness/ Dual side/3M

The Cervelo Internal Di2 Mount for S5 is a replacement Di2 battery mount for internally mounting a Shimano Di2 battery within an S5 downtube. The mount is only compatible with Cervelo S5 seatposts for 2014 onwards models.