Products

This aerodynamically designed crankset combines new engineering features together with remarkable weight saving. High rigidity for optimal power transfer. 53-42T, 54-42T, 52-39T, 55-42T, 53-39T, 56-44T (Standard) 50-34T (Compact)

Technical Documents
EV-FC-7900-2877EV-FC-7900-2877
SI_1KY0A_002SI_1KY0A_002
Features
  • Thin-walled forged aluminum crank
  • Hollow chainring
  • Aluminum axle
  • 20% more rigid against pedal load
  • New seal design for BB adapter
  • New teeth design for improved chain contact
Specifications
Model NumberFC-7900
SeriesDURA-ACE
Crank Construction
Cassette Compatibility10-speed
Chain CompatibilitySuper Narrow HG for 10-speed
Hyperdrive
Dual SIS
Reinforced Spider
Chainring Sets53-42T, 52-39T, 53-39T, 54-42T, 55-42T, 56-44T
Bolt Circle Diameter
Crank Arm Length165/167.5/170/172.5/175/177.5/180mm
Crank Arms
Chainrings
Chain Guard
Bottom BracketSM-BB7900
Chain Line43.5mm
Spindle Length
BB Shell Width
Average Weight