Giant Momentum Vida E+ Low-Step 500Wh E-bike 2021 - Philbrick's Ski, Board, & Bike
Amazon.com : SPEEDBOX 2.1 for Giant Ebike. Tuning kit Suitable for All 2017-2021 Giants - Giant Syncdrive Sport/Pro/Life/Core eBikes. Smart Tuning chip of The Second Generation : Sports & Outdoors