
This monoblock cassette from ZTTO is cheap, durable, and the same weight as Shimnao Dura-Ace, so is it worth considering?
I am always on the lookout for ways to drop weight from my road bike on the cheap, and this cassette from ZTTO really fits the bill. You can get it for £55 ($70) on AliExpress, and as it only weighs 199g, it’s only 5g more than a Shimano Dura-Ace R9100 cassette.
Many of the cheaper lightweight cassettes on sites like AliExpress will include teeth made from aluminium to save weight. This is great, but the durability can be a bit lacking, especially if you ride in sub-optimal conditions. The ZTTO monoblock cassette in this episode is CNC machined from a single block of steel, so it is both ultra-lightweight, and incredibly durable.
SRAM offer monoblock cassettes for their top of the line Red groupsets, but they are incredibly expensive at £350 ($450). So if this one from ZTTO is decent, it looks to offer INCREDIBLE value for money!
Please note some links below are affiliate links:
ZTTO monoblock cassette:
https://a.aliexpress.com/_EwkylMX
Slightly cheaper Goldix cassette (seems to be an identical product…)
https://s.click.aliexpress.com/e/_DexSNw3
Timestamps:
00:00 – Intro & SROAD cassettes
01:39 – ZTTO MTB cassettes
02:09 – Cost, weight, & comparison
03:18 – Shifting demo
03:39 – Potential drawback
04:38 – Durability
05:25 – Bonus clip
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Email:
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Please note:
I am not a professionally trained bike mechanic. There can be risks associated with using products that are unbranded, untested, or come from sources where the provenance is unknown. Please talk to a qualified bike mechanic if you are in any doubt.
In essence, be careful, do your research, and cycle safe!!!
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Bike part mentions in this video

GOLDIX SL CNC Road Bike 12/11S Ultralight Freewheel 11/12-28/30/32/34T Bicycle Cassette Flywheel 12 Speed K7 Gravel 11V Sprocket

ZTTO Black Cassette Ultralight 11 S 12 Speed Road Bike Freewheel 11V 12V ULT Sprocket 28/30/32T 34T Fit HG Body Hub Structure
GOLDIX SL CNC Road Bike 12/11S Ultralight Freewheel 11/12-28/30/32/34T Bicycle Cassette Flywheel 12 Speed K7 Gravel 11V Sprocket
Created: August 26, 2024The GOLDIX SL CNC Road Bike 12/11S Ultralight Freewheel 11/12-28/30/32/34T Bicycle Cassette Flywheel 12 Speed K7 Gravel 11V Sprocket is not mentioned in this video.
AI-Summary


ZTTO Black Cassette Ultralight 11 S 12 Speed Road Bike Freewheel 11V 12V ULT Sprocket 28/30/32T 34T Fit HG Body Hub Structure
Created: August 26, 2024The 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
