Dear Valued Customer,
For your safety, we highly recommend that you perform a quick check on the pedal arms (crank) and retightening them. Ensure that you tighten the bolt of the pedal arms (crank) at the recommended torque 38N.m. - 42N.m. Failing to do so may cause one of the components to detach.
Enclose a photo to clarify which bolt must be tightened.
Thank you in advance for your review and for being a preferred customer.
We wish you a joyful experience.
Spark Bikes Team
Just got the above email. Worth double checking.
I had an issue with the left crank on one of my two Spark Minis. While the other bike was fine, I had a local shop do all the crank arms, since I brought the one in to check that there wasn't an issue with the bottom bracket. They cleaned up the inside, re-applied Loctite and tightened to spec.
That was about 60km ago, and everything is okay.