From what I found when doing my shopping the KQ and the Grizz are very close in power and speed, but the KQ had the advantages of a headlight pod & backup pull starter. Now the pod is really nice if you ride in low light conditions on trails. No verdict on the pull start, I can't budge mine but only 40 miles on it so not broken in yet. What sealed the deal for me was my KQ was $450 cheaper than the Grizz.