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Shipping Estimate
USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 2 - Jul 7
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Description
arms bis gear Shimano Ultegra 8100 Power Crank ArmsThe Shimano Ultegra 8100 Power Crank Arms bring dual sided power measurement to the Ultegra 8100 groupset delivered as crank arms only, so you can pair them with your existing chainring and build out your setup on your own terms. Accuracy sits within 1. 5%, and left right balance data gives you a clearer picture of how your effort is actually distributed across each pedal stroke. These arms use Bluetooth and ANT+ connectivity, making them compatible
The Shimano Ultegra 8100 Power Crank Arms bring dual-sided power measurement to the Ultegra 8100 groupset — delivered as crank arms only, so you can pair them with your existing chainring and build out your setup on your own terms. Accuracy sits within ±1.5%, and left-right balance data gives you a clearer picture of how your effort is actually distributed across each pedal stroke.
These arms use Bluetooth and ANT+ connectivity, making them compatible with a wide range of head units and training platforms. The battery is rated for over 300 hours of ride time and is waterproof, so charging interruptions and weather are rarely going to be your concern. Zero-offset calibration is straightforward — something you'll appreciate when you're standing in a parking lot before a ride rather than fiddling with software at home.
Shimano Ultegra 8100 Power Crank Arms Specs at a Glance
- Measurement: Dual-sided power, ±1.5% accuracy
- Connectivity: Bluetooth and ANT+
- Battery life: Over 300 hours, waterproof
- Compatibility: Shimano 12-speed groupsets (arms only — chainring sold separately)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy