Sunrace CS-M66 Cassette 11-34t 11,13,15,18,21,24,28,34

My bike rides like new again. New chain and new cassette. No chain slip and nothing but smooth shifting and smooth performance.;

This cassette was specified on my GT hardtail. Pros include wide range decent weight and good value (if you're buying aftermarket). Only problem was that the 13t cog had a large skip going under loads - couldn't stand on it or even pedal hard in the saddle. Presumed at first I just didn't have the mech adjusted quite right and tried everything in my power to fix it. It wasn't the mech. Accidentally discovered the real root of my problem when I swapped this cassette out for a Shimano-made replacement. Given as nobody else has reported this same problem I most likely just got one with a minor defect but the number of different issues reported by others with this product gives me pause. Additionally I found it less definite on upshifts than the Shimano cassette I ultimately replaced it with but it never had any serious issues in that regard - just a bit of hesitation.;

Did exactly as described. Super easy replacement by a DIY YouTube watching bike fixer. Good quality for Specialized Hardtail bike.;

I love this product the best;

Back in 1993 i had a custom made freewheel by bomber cycles which was 6101418242838 which everyone thought I was crazy and ran front 66/48 !! Was very fast bike Cannondale..I find this cassette to be just as good as those days...only wish it was made in the USA!;