SHIMANO Center Dura Ace R9200 170mm 50/34z. 12-k. HTII without bearing

Optimal balance of stiffness, strength, weight and rotational performance. HOLLOWGLIDE chainring structure reduces weight but maintains strength for better power transfer and faster and more precise shifting.
Recommended bottom bracket: BB-R9100, SM-BB9241B
Technologies used: Hollowtech II, Hollowglide

Type: ROAD, Total package weight: 1340g, Crank length: 170mm, 12 speed, Number of teeth: 50/34 teeth, Hollowtech II, 68/70mm, black, without cover, Chainring material: glass fiber reinforced aluminum (upper), aluminum (lower), Chainring spacing: 110mm/110mm

SCIENCE OF SPEED
Years of our work bring you seconds. Speed ​​is the driving force behind the new generation of road groupsets. Shimano engineers have refined all components and functions to provide the ultimate riding experience, whether you're sprinting to the finish line on the Champs-Élysées or climbing a nearby hill.

View product manual.

Safety Notice
WARNING
Information on installation, adjustment and replacement of products that is not found in the user manual will be provided to you at the place of purchase or from your distributor. The dealer's manual for professional and experienced bicycle mechanics can be found on our website (https://si.shimano.com).
For your safety, please read this "User's Manual" carefully before use, follow it for proper use, and save it for future reference.
The following instructions must always be followed to prevent personal injury and physical damage to the equipment and surroundings. The instructions are classified according to the degree of danger or damage that may occur if the product is used incorrectly.
DANGER - Failure to follow the instructions will result in death or serious injury.
WARNING - Failure to follow the instructions could result in death or serious injury.
WARNING - Failure to follow the instructions could result in personal injury or physical damage to the equipment and surroundings.

WARNING:
Do not disassemble or modify the product. This may cause the product to malfunction, you may fall unexpectedly and be seriously injured.
Before riding the bicycle, check that the crank arms are not cracked. If there are cracks, the crank arms may break and you may fall off the bicycle.
Be careful not to get any clothing caught in the chain while riding. Otherwise, you may fall off the bicycle.

CAUTION:
Be careful not to touch the teeth of the sprockets. There is a risk of injury.

Manufacturer details
Shimano INC
3-77 Oimatsu-cho, Sakai-ku, Sakai City, Osaka 590-8577, Japan
Telephone number: +81-72-223-3210 / FAX:+81-72-223-3258
WEB: shimano.com
Email: contactshimano@shimano-eu.com

EU representative:
Shimano Europe BV
High Tech Campus 92, 5656 AG Eindhoven, the Netherlands
Tel: +31-40-2612222
WEB: shimano.com
Email: contactshimano@shimano-eu.com
EU contact: https://bike.shimano.com/information/distributors-list.html