The Ryker 600 is 50 HP @ 7300, idle 1100 RPM, 12:1 comp
The Ryker 900 is 82 HP @ 8000, idle 850 RPM, 11:1 comp
The bottom line is a 600 has a great price point and satisfaction likely based upon how it will be used: Great commuter.
No regrets buying a Ryker. Review in this link
https://www.spyderlovers.com/forums...review&p=1546601&highlight=report#post1546601
Looking back, the main issues were high RPMs, fuel economy, belt life and dodging potholes with a triple track. Cornering was fantastic!
My current ride is a 900 cc parallel twin, 8 valves, liquid cooled.
Averages 61 MPG. Sometimes over 70 MPG, but only 55 MPG at 85 MPH+.
View attachment 192982