Dura Ace R9200 – Never Compromise
The Science of Speed. Speed was the mainspring in the development of
this 12-speed road bike series of a new generation. Several years of research
produced those innovations that make the Shimano Dura Ace R9200 even faster. Every
component has been revised, refined and optimised to enable the decisive
seconds of advantage – whether as a breakaway from the peloton or in the finish
sprint on the Champs-Élysées.
The electronic Di2 parts rely on Wireless technology where it matters to
make shifting even faster and more reliable. Smooth shifting is also the aim of
the Hyperglide+ system, already known from the MTB segment, which is designed
to bring out maximum performance and the full potential of every racer.
Shimano Dura Ace FC-R9200 crankset
The Shimano Dura Ace FC-R9200 crank performs two crucial tasks: It
converts pedal power into propulsion and ensures extremely fast and precise
shifting. Not only do the lightweight crank arms, manufactured using Hollowtech
II technology, contribute to this, but also the uniquely designed
chainrings which feature a Hollowglide construction and ensure fast
as well as smooth shifting. The result is responsive acceleration from any
speed securing the 2x12-speed crankset an absolute top position.
Various crank arm lengths and chainrings with 50-34 to 54-40 teeth offer
variability and an optimum gear ratio for every riding situation.
Hollowtech II
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)
Compatibility:
front derailleur: FD-R9250, FD-R8150
bottom bracket: BB-R9100 (thread type), SM-BB92-41B (Press Fit)
chain: CN-M9100, CN-M8100, CN-M7100, CN-M6100
Weight : 692 grams (52-36 teeth)
Ετικέτες: Dura Ace FC-R9200 (second hand)

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