Stages Powermeters are the perfect upgrade when it comes to significantly improving performance on the bike. The high-resolution Gen 3 Powermeter technology benefits from more than a decade of continuous product innovation.
In the Power LR model, the pre-mounted sensors on the drive side and on the left crank arm measure the cyclist's wattage values with maximum accuracy and independently of each other. Data transmission is seamless via Bluetooth and ANT+. The powermeter sensors themselves integrate seamlessly into the design of the Shimano Ultegra FC-R8000 crankset and only add 35 grams to the weight.
The Shimano Ultegra FC-R8000 crank is not only convincing when it comes to effectively converting power into speed, it also converts gear changes so quickly and reliably that the rider has trouble even noticing them.
The 2x11-speed crankset is supported by the beautifully shaped Hollowtech II crank arms, inspired by the Dura Ace counterpart, as well as the large chainring with Hollowglide technology. The hollow construction of these two components not only significantly reduces the weight of the Ultegra crank, but also increases its stiffness for even more direct power transmission.
The guiding principle of Shimano's Hollowtech II technology is the perfect balance between stiffness, stability, weight and rotational efficiency. The goal was to produce a crank that minimises the effort required for the drive and enables more efficient power transmission.
An exclusive forging process allows the production of extremely light crank arms that nevertheless guarantee maximum stiffness. The fixed connection of the right arm to the axle of the bottom bracket and its external bearing also serve an optimum relationship between stiffness and low weight.
Material:
crank arms, inner chainring: aluminium (anodized)
outer chainring: aluminium (anodized), carbon fiber reinforced polymer (CFRP)
axle: steel (plated)
Weight (manufacturer's specs):
approx. 674 g (170 mm | 50/34 teeth, without sensor)
approx. 681 g (170 mm | 52/36 teeth, without sensor)
approx. 690 g (170 mm | 53/39 teeth, without sensor)
approx. 35 g (Power LR Powermeter sensor)
Scope of supply:
crankset incl. integrated Powermeter sensors and batteries (2 CR2032 coin cells)
| Product Name: | Stages Cycling Power LR Powermeter | Crankset by Shimano - Ultegra R8000 | 2x11-speed |
| Manufacturer: | Stages Cycling |
| Item Code: | SCG585317 |
| activity: | Cycling |
| material: | Aluminium |
| usage bikesport: | Road Bike |
| crank arm length: | 165, 170, 172.5, 175 |
| shifting system: | 11-speed |
| bottom bracket axle profile: | 24mm Hollow Shaft |
| bottom bracket case width: | 68mm, 70mm |
| Road - bolt circle diameter: | 110mm |
| chainring mount: | 2-speed |
| chain line: | 43.5mm |
| crank special features: | Power Meter |
| Q-factor: | 146mm |
| Model year: | 2022 |
| Color: | Black |
| weight: | 1117g |
| manufacturer item code: | UR8-A4 / UR8-A6 / UR8-A9 (165 mm) UR8-C4 / UR8-C6 / UR8-C9 (170 mm) UR8-D4 / UR8-D6 / UR8-D9 (172.5 mm) UR8-E4 / UR8-E6 / UR8-E9 (175 mm) |
| Manufacturer page: | https://stagescycling.com/ |
