ZTTO SLR Gen3 11speed Road Bike Cassette 11 Speed 11-30 11-32 11-34 11-36 11-28T 112g K7 11s Spokets HGR universal

The reviewer analyzes the ZTTO SLR Gen3 11-speed cassette, focusing on a specific failure where the top two sprockets sheared off. They note the cassette is lightweight, visually appealing, and affordable. The design involves the top three sprockets milled from a single aluminum block with the rest being steel. The reviewer has used smaller versions (11-28T) for years without issue, but identifies a design flaw in larger sizes (11-30T and up) where the top two sprockets are connected by a thin ring of supports, creating a potential cantilever beam effect and stress risers. They attribute the specific failure to use on a rough cyclocross course with spiky power delivery. The reviewer concludes that these cassettes prioritize weight savings over durability and safety margin, advising caution with larger sizes.

The reviewer discusses the ZTTO SLR Gen3 11speed Road Bike Cassette as a replacement for their worn-out monoblock steel cassette. They mention it is incredibly lightweight at just 122g and is the latest generation from ZTTO, referred to as the SLR Gen3. However, they express concerns about its durability, particularly due to the aluminum teeth on the first three sets, which they expect to wear out quickly. They plan to test it and provide updates on its performance.

The ZTTO SLR Gen3 11speed Road Bike Cassette 11 Speed 11-30 11-32 11-34 11-36 11-28T 112g K7 11s Spokets HGR universal is not mentioned in this video.

The reviewer discusses their experience with a cheap AliExpress cassette (likely the ZTTO SLR Gen3 based on context) that failed during a hill climb race. They mention the cassette started skipping under power, particularly when standing on steep gradients, which ruined their race performance. After replacing it with a Shimano 105 cassette, all issues resolved immediately. The reviewer reflects that while the lightweight AliExpress cassette (approximately 112g) offered weight savings, its unreliability outweighed any benefits. They acknowledge that sometimes budget components work, but this was a clear failure case.

The reviewer discusses the ZTTO SLR Gen3 11-speed cassette as one of the most exciting upgrades made to their hill climb bike. They highlight its extremely low weight of 113g for the 11-28T version, which was a significant factor in their decision to purchase it. They note that the cassette's teeth are well-machined with proper Shimano-style ramps, resulting in brilliant shifting performance. However, they express concerns about durability since the top three sprockets are made from a single block of aluminum, suggesting it may not last long under heavy use. The reviewer clarifies that this is intended as a race-only cassette that won't see many miles, hoping it will last at least a season.