The Redline motors are a good choice with this controller and all the rest. We recently lowered the price and plan to be more aggressive so people understand they are compatible with all sensorless controllers and RTR's.
Of course we would rather see you running a R1 speedo. We recently reduced the price of our R1 systems with redline motors significantly and it comes with support, features, performance, updateable and the cool factor.
Tekin Prez