Reviews & Ratings

The reviewer discusses the ZTTO Black Cassette Ultralight, highlighting its monoblock construction, lightweight design, and impressive shifting performance. They mention purchasing it from AliExpress for £66 and being impressed by its value compared to high-end cassettes from Shimano and SRAM. The reviewer notes its durability based on their experience with other ZTTO mountain bike cassettes, though they haven't fully tested long-term durability yet. They also mention a minor drawback regarding limited freehub contact area but state it hasn't been an issue in practice.
AI Summary
Pros
- Monoblock construction from a single block of steel
- Lightweight (199g for 11-28T)
- Excellent shifting performance
- Great value (£66 compared to £240-£352 for high-end alternatives)
- Durability appears good based on similar ZTTO mountain bike cassettes
- Impressed with overall performance
Cons
- Limited contact area with freehub (about half a centimeter at bottom, 8mm at top)
- Potential concern about freehub wear (though reviewer hasn't experienced issues)
- Long-term durability not fully tested (only 800 miles so far)
Key Points
- Monoblock construction
- 11-28 tooth configuration
- Weighs 199g
- Cost £66 from AliExpress
- Compatible with HG body hub
- Requires 40Nm lockring torque
- Used with Shimano 105 R7000 rear derailleur
Where to Buy
ZTTO Black Cassette Ultralight 11 S 12 Speed Road Bike Freewheel 11V 12V ULT Sprocket 28/30/32T 34T Fit HG Body Hub Structure - AliExpress 18

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