Originally Posted by
Sonmi451
You mean the stock tires that came with your Sirrus? You just swapped the wheels? How was changing the cassette? I have a 9 speed, but I think the wheel is 10 speed. I need to figure out what spacer I need.
yes... it works fine with my sora cassette without spacer and it doesnt wobble. i dont know why but in the manual it say put spacer for 9-10 speed..try asking cassette spacer at your LBS.