This carbon fiber crankset is praised for its lightweight design, good shifting performance, and excellent value, though some durability concerns exist regarding axle and bolt materials.
Pros
- Lightweight construction
- Good shifting performance
- Affordable price point
- Durable with no cracks or delamination reported after extended use
Cons
- 24mm aluminum axle has been reported to shear or snap under load
- Crank retaining bolt may snap with repeated installation/removal or over-tightening
- Original extraction bolt cracked under excessive use in some cases
- Newer version is slightly heavier than original
Key Facts
- Weighs 568g-594g depending on version
- Uses 7075 T6 aluminum chainrings
- Features single bolt securing mechanism similar to SRAM
Reviews & Ratings

The reviewer briefly mentions the RIRO Carbon Fiber Crank Road Bike 11/12 Speed 50-34/53-39T Direct Mount Bicycle Crankset 170mm 46/48/50/52T Chainring Bike Parts but does not provide detailed analysis.
AI Summary
Hey mate, I have a Riro at the 50/34 chainring. Has around 500km on it so far, so I cant comment on longevity. No issues installing, I do have a T47-79BB.

The reviewer discusses the RIRO Carbon Fiber Crank extensively, highlighting its performance and design improvements over other carbon crank sets. They mention using it for over a year with more than 2,500 miles, noting its durability and solid construction. The crank set features a single bolt securing mechanism similar to SRAM, which the reviewer praises as superior to other designs. They also appreciate the better quality chain rings that come with it, which have lasted longer than those on other crank sets. However, they note an issue with the original extraction bolt cracking under excessive use, though they consider this an uncommon scenario. The reviewer also mentions a newer version of the RIRO crank set with a different design and heavier weight but improved features like a 29mm axle and better shifting performance.
AI Summary
Pros
- Durable construction with no cracks or delamination after over a year of use
- Superior single bolt securing mechanism similar to SRAM
- Better quality chain rings that last longer
- Lightweight compared to Shimano 105 crank
- Affordable price point (around 100 quid)
- Newer version features improved design with 29mm axle and better shifting performance
Cons
- Original extraction bolt cracked under excessive use (though considered uncommon)
- Uses a Shimano Standard 24mm aluminium axle, which some reports suggest may snap under load
- Newer version is slightly heavier due to chunkier design and 29mm axle

The reviewer discusses the RIRO carbon crankset as their preferred choice for a value build, highlighting its aesthetics, shifting performance, and low weight, but notes two specific caveats regarding durability.
AI Summary
Pros
- Looks great
- Shifts well
- Really lightweight (about 570g)
- Good value (cost ยฃ130, now available for ~ยฃ80)
Cons
- Uses a 24mm aluminium axle, which has been known to shear or snap on some cranksets (though not personally experienced by the reviewer with this specific model)
- The crank retaining bolt snapped on the reviewer after repeated installation/removal and over-tightening
Where to Buy
RIRO Carbon Faser Kurbel Rennrad 11/12 Geschwindigkeit 50-34/53-39T Direkt Montieren Fahrrad Kurbelgarnitur 170mm 46/48/50/52T Kettenblatt Fahrrad Teile - AliExpress 18


RIRO Carbon Fiber Crank Road Bike 11/12 Speed 50-34/53-39T Direct Mount Bicycle Crankset 170mm 46/48/50/52T Chainring Bike Parts - AliExpress 18

Questions about RIRO Carbon Fiber Crank Road Bike 11/12 Speed 50-34/53-39T Direct Mount Bicycle Crankset 170mm 46/48/50/52T Chainring Bike Parts
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