The article makes some interesting claims though about suspension performance. It would be interesting to ride the bike to find out but I suspect the excessive downward angle would create suspension 'harshness' with the suspension reluctant to move upwards. All by poofteenths, but the suspension has to move backward before it goes up. Also the shock angle would give a decreasing rate dampening/springing rate which would be hard to eliminate with fine tuning. The constant chain torque would probably be an advantage. How much? I would love to ride a Beemer to find out. But there are probably easier, cheaper and lighter ways to achieve that.