I have a 7 speed Sunrace and have been happy with it over 500 or so miles. It has a nice chrome finish and shifts really smooth compared to the original Suntour. When I checked the IRD specs, their 7 spd. seemed to be wider than their 6 spd. I thought the 7 spd. freewheels were supposed to be the same width as a 6 speed. Something to consider if your bike may be a little tight back there. My 7 spd. Sunrace is the exact width of the 6 spd. Suntour.