I recently obtained (at a yard sale) a brand new (still in the original box), never been used Sears Free Spirit 0.8 HP bicycle assist motor. I put it on my bike and changed the drive wheel to neoprene and used it twice. Runs great, but I live in a gorge....have to climb 750' in elevation to go anywhere. Motor is great for regular roads but not for steep climbs. Need to sell so can get more powerful motor. $300 OBO.