I recently bought a used Q45 and found that the seat wasn't 100% compatible with my back/neck injuries. I bought an aftermarket Sun mesh back seat and after a few modifications here it is...I think it turned out great and is perfect for my back/neck. I was able to mount the original cruzbike seat mounts to the new seat bottom and i used a threaded rod to attach the seat back to the original cruzbike brackets. It's a Frankenbike but hey, it works
