Sun Race CSM680 Cassette 8-Speed 11-40T Black

A great upgrade for an Aventon LEVEL II, along with a Shimano Acera derailleur! 5 stars for quick shipping, price and ease of setup! (Recommended!)

Used on Schwinn axum to replace broken original. It shifts better now than it did new. Happy for the price

Upgraded my son’s 2019 Cannondale Trail 24 with this cassette. Did have to use a longer chain for the bigger gear. Worked great.

Decided to upgrade my mtb cassette didn't know if this was going to work. Pulled the trigger installed it and this by far was a great upgrade especially going to a single crank. This was installed in a gt aggressor pro

Got an old 99 GT Palomar for next to nothing to haul the kids in the trailer. Bottom of their line with twist shifters. Problem is while taking the boys on an adventure sometimes you need to hold a big old Chick-fil-A cup in one hand while you pedal and manage hills etc. So I got a 26” wheel with HG hub from the coop, put a Wolf Tooth road link on the rear derailleur, removed both old shifters, got a new 8 speed shifter and this cassette, and took off front derailleur. Using the middle ring (28/38/48) this thing has slightly better climbing gear than the old 28:28 ratio AND slightly better top gear with 38:11 than the former best 48:14. Great ratio and speed combination to make for a very economical 1x setup.

sunrace is good but the 40 tooth bent too easy

Using this on my ebike , with a Shinano ACERA RD-M3020-SGS long cage . Perfect combo this cassette is 11,13,15,18,22,28,34,40 . which makes more scene for a e bike , wider mid range , good hill climbing and good top end . And You can't beat the price. These are steel , not light weigh , should take a pounding of the BBHSD. Top this off with a 46t ft chain ring and You have a beast !

I had an 8 speed 11-34t cassette and I wanted a little more easier gear all of the cassettes that have 36 tooth you had to go to 9 speed and I did not want to get a new derailleur and shifter. I was a little bit hesitant about getting this because it is in 11-40t cassette with my front chainring is 34 22 I thought it would might popping snapping not work properly when in 22 tooth chainring but it works perfectly there is no snapping popping skipping gears none of that. The installation was a breeze no problems everything lined up just had to adjust the B screw so the derailleur could go onto the 40t sprocket. My rear derailleur is a Sram X5 8 / 9 speed derailleur seems fine with going onto the 40t sprocket the price was good to everywhere else I look they wanted $40-50 for this same cassette