Originally Posted by
RubberLegs
That does look like a freewheel and I counted 11 teeth. However, going to 8-speed freewheel isn't wise, given the extra length between the drive-side bearings and dropout. Too bad they don't have one in 7-speed.
Also, looks like a special tool is needed to reach the splines on these freewheels:
http://www.comcycle-usa.com/catalog....Descriptions=1