Originally Posted by
OrangeBike
I've been running a SunRace 7spd for a while now, pretty happy with it. They come in 5, 6, 7, 8 & 9spd. Though I thought we not to do a freewheel over 7...
Anyway, for the cost, you could burn though four of these.

I replaced the original 6-speed freewheel on my Raleigh Super Course with a 7-speed, ramped, SunRace.
Here's my review of it. It was a bit tight for my spacing but it works. If you're concerned with that, go for just a straight replacement (6 gears).
I think the improvement in shifting is phenomenal.