SHIMANO FC-R8100-P Gearless Power Sensor Crankset: Power sensor technology
If you're the kind of cyclist who sweats the small stuff—like, really sweats it—then the SHIMANO Gearless Power Sensor Crankset FC-R8100-P might just be your new best friend. It's not just about measuring power; it's about doing it with the kind of precision that would make a Swiss watch jealous. Thanks to its cutting-edge sensor tech, you'll get data so accurate, you'll wonder how you ever trained without it. And because it's gearless? Say goodbye to fussy maintenance and hello to buttery-smooth rides. Built like a tank but sleek as a sports car, this crankset is ready to take whatever you throw at it (literally, if you're into that). Plus, setting it up is a breeze—whether you're a pro or just pretending to be one on weekends. Time to take your training from 'meh' to 'heck yeah' with power metrics that don't mess around.
- Gearless design
- High precision measurement
- Durable construction
- Easy installation
- Power sensor technology
General specs
- Brand: SHIMANO
- Model: FC-R8100-P
- Seller: Joom
- Length: 172.5mm
- Technology: Gearless Power Sensor
- Compatibility: Bicycles
- First listed by seller: 6/23/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
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SHIMANO FC-R8100-P Power sensor technology
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SHIMANO FC-R8100-P Power sensor technology
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SHIMANO FC-R8100-P Power sensor integration
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SHIMANO FC-R8100-P Power sensor integration
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SHIMANO FC-R8100-P Power sensor included
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SHIMANO FC-R8100-P Power sensor included
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| Brand | SHIMANO | SHIMANO | SHIMANO | SHIMANO | SHIMANO | SHIMANO |
| Model | FC-R8100-P | FC-R8100-P | FC-R8100-P | FC-R8100-P | FC-R8100-P | FC-R8100-P |
| Color | ||||||
| Rating |
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| Price | $1,231.86 | $1,328.11 | $1,233.32 | $1,231.15 | $1,194.38 | $1,328.11 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 18, 2025 | August 18, 2025 | August 18, 2025 | August 18, 2025 | August 25, 2025 | August 18, 2025 |
| Chainring Configuration | 50x34T | 50x34T | 52x36T | |||
| Crank Length | 172.5mm | 170mm | 175mm | 175mm | ||
| Power Sensor | Integrated | Yes | Included | |||
Gearless Power Sensor Crankset
Ruby J.
Manchester
July 3, 2025
as a brand loyalist, i've always trusted shimano, and this didn't disappoint. the problem was my old setup gave inconsistent readings, making it hard to track progress. this crankset solved that with reliable metrics. bottom line, it's a solid upgrade for serious training, but not necessary if you're just out for fun. as it seemed to me, it's best for those who really want to dive deep into their performance.
- Pros: the accuracy of the data it provides is incredibly precise, making my training feel more effective. i love how easy it was to set up, even for someone like me who's not very tech-savvy. the build quality is solid and it integrates smoothly with my existing gear, requiring no extra maintenance.
- Cons: it's quite pricey, which might not be worth it for casual riders. while the data is great, it can be overwhelming to interpret without some guidance. i noticed it adds a bit of weight to my bike, which isn't ideal for long rides.