Hi guys! I've just come across this amazing website and I would really appreciate some advice on buying my first ebike. I live in london, around my area is slightly hilly so I want the bike to make commuting to work easier. My commute is around 1 hour each way. I've narrowed it to 2 options, the Oxygen S-CROSS ST ,http://www.e-bikesdirect.co.uk/Item/Electric_Bikes/Step_Through_Frames/Oxygen_S-CROSS_ST_Electric_Bike.aspx, and the momentum model T, http://www.e-bikesdirect.co.uk/Item/Brands/Momentum_Electric_Bikes/Momentum_Model_T_Electric_Bike.aspx. I'm 5'10 and i believe the Oxygen is 17" so i'm not sure if that would be a problem. But apart from that they both look great and I really don't know if one is slightly better than the other. Please advise me on the best one. Thanks in advance!