Change Shimano Steps mid-size motors for 2016 new Raleigh bikes. No longer to make Currie hub wheel motors. Why? I plan to buy 2015 Raleigh Route IE and some sale about $1800. Cheap price but it s heavy weight as 55 lbs. I like 2016 Route IE (mid-motor) and lightweight but little expensive as $2600. I will wait for low cost next spring. Do you know Shimano Steps mid-motor is better than Currie hub motor?