New motor has finally arrived! April 29, 2011April 29, 2011 peter Parts Well, it took a while, but the motor has finally arrived. Spent 2 weeks in US Customs, and another 3.5 days for delivery here, but it is sitting in my garage and smirking at me. Stats: 11.5″ diameter, 11″ length, 40mm shaft diameter. New motor from Shengen Motors. peter Living in Santa Cruz with my spouse, a dog and a sprinkling of cats.