The ZTTO SLR Gen3 12s cassette is praised for its exceptional lightweight design but receives mixed feedback on shifting performance, with some users experiencing noise or skipping issues that may require specific derailleur compatibility or fine-tuning to resolve.
Pros
- Exceptionally lightweight construction
- Significant weight savings compared to branded alternatives (approximately 150g difference)
- Compatible with 12-speed Hyperglide (HG) systems
- Works well with electronic shifting systems when properly tuned
Cons
- Potential chain skipping under heavy load
- Shifting noise reported at specific gears
- Cog spacing accuracy may be inconsistent
- Requires careful derailleur tuning for optimal performance
Key Facts
- Claimed weight as low as 116g for 11-28T configuration
- Available in 11-28T, 11-30T, 11-32T, 11-34T, and 11-36T options
- Three largest cogs constructed from 7000-series aluminum
Reviews & Ratings
The reviewer discusses issues with a cassette that caused chain skipping during a hill climb race, though they do not explicitly name the ZTTO SLR Gen3 12s Road Bike Cassette. They mention replacing it with a Shimano 105 cassette, which resolved the issues. The reviewer implies the problematic cassette was a cheap AliExpress purchase, contrasting it with the reliability of branded components.
AI Summary
Pros
- Lightweight (implied by comparison to the 105 cassette)
Cons
- Chain skipping under load
- Unreliable performance
- Lack of compatibility or quality control compared to branded components
Key Points
- Replaced with Shimano 105 cassette
- Weight difference of ~150g mentioned
I had the ZTTO SLR3 (gen 3, the one with 3 largest cog being 7000-series aluminum) HG 11-50 12 speed for about half a year or 900 miles. For the first 200 miles I was using the shimano XT M8100 long cage derailleur. It worked but there is always a little noise at some gear, either this or that one. I tried to fine-tune the shift cable tension, limit screw, B-screws. But you will always have a couple of gears that have the noise. Maybe it's just me who are sensitive but it really bothered me. But at the same time I really liked the lightweight-ness of it. (285grams!!!). So I bought the Wheeltop OX 2 mountain electronic derailleur and then fine-tune every cog. It worked beautifully since then (the past 700 miles). extremely quiet at each cog. I am loving it. the cassette cog-spacing must have not been very accurate for some cogs, but the Wheeltop electronic shifting system resolved the issue.
Where to Buy
ZTTO SLR Gen3 12s Road Bike Cassette Super Light Weight 116g 11-28T 11-30 11-32 11-34 11-36 146g K7 12s Spokets HGR universal
Questions about ZTTO SLR Gen3 12s Road Bike Cassette Super Light Weight 116g 11-28T 11-30 11-32 11-34 11-36 146g K7 12s Spokets HGR universal
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