Dura Ace 7800 Professional Road System

Professional SRM Powermeter compatible with Shimano Dura-Ace 10-speed

The Japanese component manufacturer has once again made its mark with its Shimano DuraAce 7800 10-speed group. Almost unbeatable in its function, combined with perfect ergonomics and high stability: SRM has integrated the high tech wireless power measurement to adapt in the top Shimano group. Wireless data transmission via ANT+ protocol.

Measurement accuracy: ±2%.

Shimano DuraAce 7800 10 speed compact crank: Cranks are available in lengths of between 165 and 180mm

Chain rings:
Bolt circle diameter: 130mm
Chain ring: 39/53
Other chain ring combinations might be available on request

Weight: 919 g with cranks, chain rings and bottom bracket (98 g)

Bottom bracket: DuraAce FC-7800 (weight: 98 g) not included in delivery 

Compatible with PowerControl VI and VII wireless

Chainrings:
Standard: 39/53
Compact: 34/50
Other chainring combinations might be available on request

You supply your own Shimano Bottom Bracket Cups

This Powermeter is only available in the Professional Road version

Includes:

• SRM PowerMeter
• SRM PowerControl VI or VII
• Cranks Shimano Dura Ace
• Chainrings Shimano Dura Ace 
• Handlebar clip
• Software
• Manual
• Multi-charger (works with both 110V and 220V)
• USB download cable
• Now available ANT+ enabled

Shimano DA-7800 Arms, Aluminum Spider 165 - 180mm

Bolt Circle Diameters: 130mm outer ring, 130mm inner ring or 130mm outer/110 inner on compact Shimano FC-7800 (Not Included) 919g (PowerMeter, Chainrings, Cranks & BB) 8

Battery Life: 1400 hours of use

Q-Factor: 147.5mm

Cadence Range: 30-255 rpm

Wattage Range:0-4096 Watts