SHIMANO FC-R9200 CHAINRING 34T-NK/36T-NHShimano Chainring for Dura Ace FC R9200 Crankset inner Chainring for the Shimano Dura Ace FC R9200 and FC R9200 P 2x12 speed cranksets. The chainrings with 110 mm bolt circle diameter ensure fast as well as smooth shifting. For reasons of weight optimization, the outer models also feature a Hollowglide construction, which can still come up with an extremely stiffness. Material: outer: aluminum (anodized), carbon fiber reinforced plastic (CFRP) inner:

E-tube port (QTY): 1

Model Number：M4120

- Greater traction range and no chain rubbing for long distance bicycles

Disconnected lever comes pre-bled with connecting bolt/built in olive pre-installed

Package Weight    ‎8

TourSize (inches): 29 x 2

Plug diameter: Φ3

Weight: 330 g

Oversized ergonomic tops

effectively reduces heat build-up

3D brushes brush your chain all around

This ensures that these saddles are ideal for less ­flexible riders who tend to move around on the saddle more