SunRun SRAM Bike Cassettes

good

Good cassette! Nice sharp teeth!

Long story: A couple tourists stayed a few weeks at a rental property and bought a couple nicely engineered but cheap bikes from Wally World. In many ways the engineer's fine design was undercut by cheapening the manufacturing. The bikes sold at half the price of similar bikes. The owners of the property lent me one bike and I rode it for a few hundred miles until a bearing failed. It also had a skip when I put on pressure in a high gear but that could've been how the axle wiggled.The owners just gave me the other bike. It always skipped under pressure in the top gear going up a steep incline or sometimes starting out.I read and read and tried to figure it out. This bike has only a couple hundred miles on it. Today I turned it upside down to check for a frozen chain link and examine it carefully. And there was the problem: The 14 tooth sprocket was worn into wide oval valleys in only about 200 miles. I've had shoes that lasted longer.The crank/chain/shifter system is a mixture of Koei, Shimano and Sun Run. The Sun Run cassette had worn out the small sprocket. It's almost new and completely worn out.Shimano only costs a few bucks more. I don't see a reason to buy Sun Run.