Umbrail Power Crank — Dual
Tax included where applicable. Insured delivery arranged by your concierge.
QAVORYNTH Components — machined, serialised, stocked for a decade
The Umbrail measures the only honest currency in training: watts, both legs, certified accuracy per unit — numbers you can build seasons on.
We design contact points from pressure maps and pro feedback: saddles from sit-bone studies, bars from hand data, pedals from a decade of race service. Small parts, obsessive making.
Design & Build
- Certified power accuracy per unit — certificate in the box
- Compatibility stated plainly in the table — no decoder ring
- Machined in small European batches, serialised and torque-marked
- Open protocols: ANT+ FE-C and Bluetooth FTMS, no subscriptions
- Materials chosen by duty: 7075 alloy, titanium, UD carbon
Specifications
| Format | Dual-sided crank, road |
| Accuracy | ±1.0%, certified per unit |
| Battery | Rechargeable, 60 h |
| Protocols | ANT+ / Bluetooth |
| Weight | ≈ 0.7 kg kg |
| Warranty | 2 years |
Care
Follow the care card in the box: most textiles wash cool and air-dry, metals wipe clean, leather asks for occasional balm. If anything disappoints, the concierge makes it right — repair first, replacement where repair cannot win.
Questions, Answered
Can I return it?
Uninstalled components return freely within 30 days; installed ones we first try to make right.
Are spares available?
Wear parts and small spares are stocked for a decade — bearings, pads, bolts, batteries where relevant.
The QAVORYNTH Promise
QAVORYNTH stands behind each build that leaves the workshop: lifetime warranty on frames, two years on components we fit, a free first service at 500 km, and a concierge who knows your bike by its build number.