Originally Posted by
roashru
good luck removing the freewheel. if you want to put a 7 speed on it can be done i converted my raleigh sprite to a 21 speed. just get a 7 speed freewheel and replace the axle with a 175mm one that includes cones and spacers. the rear triangle will need to be widened and alignment checked.
On my World Tourist (originally 5 speed rear); I just had to add a couple of 1mm thick stainless steel washers (sourced from McMaster-Carr) to the right side for the 7 speed freewheel to clear.
Please note the some 7 speed freewheels are wider than others.
If I was doing it all over again, I would go with a close ratio IRD 7 speed instead of the Sunrace I currently have.
http://www.interlocracing.com/freewheelbreakdown.html
due to better spaced ratios on the IRD.