Speedbox 3.3 Tuning Kit for Giant Syncdrive Pro2 / Sport2 / Pro3 / Pro3x eBikes

This is a great addition to my bike, and being over 70 years old I need a bit more assistance. Still getting to know how to switch power modes with the selection switching.

Perfect customer experience. I waa concerned as to whether a speedbox would be compatible as I have updated my software. A quick WhatsApp message and instant response ( even on a Sunday, sorry!) confirmed I was good to go. Item arrived in three days, easy to install and I’m over the moon. I was considering selling but now my bike feels brand new and free, it’s a keeper! I was expecting false speed read outs on the bike display but it works just as before. Perfect service. Perfect product. Thank you E Bike Tuner!

Purchased before, always works really good Opens up bike to true potential 👍