Hikeep K6-L K6 1.0 E-Bike Installation Tutorial | Step-by-Step Guide

I pu purchased a k6-l I put it together and the top speed goes is 19.6 mph now it says it goes 32 mph I need to know is there a restriction where it’s not let me go up to the max speed. Can you please email me back? This bike is for my son‘s birthday. I need to know if I have to return it or not and get another bike to replace it just a swap I packages back up send it back. I got a warranty from Amazon and you guys just sent me another one bike out. I don’t know what to do but the question about the speed if we can get that fixed that would be great.

I purchased your bike K. six – L now that’s supposed to go faster than 19.6 mph right because that’s all it’s giving me