Shimano Dura Ace Di2 RD-R9250 12-Speed Rear Derailleur
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The RD-R9250 model, the fastest rear derailleur for the widest Dura-Ace Shimano gear range, delivers race wins and personal bests. The Dura-Ace RD-R9250 rear derailleur incorporates a wireless connection unit, offering super-fast, precise shifting worthy of any podium.
Features
- Faster shifting than ever, 58% faster than RD-R9150.
- The compact design includes an integrated wireless unit, charger and switch.
- LED status indicator.
- Smallest sprocket, maximum: 34D
- Smallest sprocket, minimum: 28D
- Largest sprocket, maximum: 11D
- Largest sprocket, minimum: 11D
- Maximum front difference: 10D.
- Pulley teeth: 11D.
- Cage: SGS.
- Actual weight: 217 g.
Technologies
Direct Mount Rear Derailleur
Rear wheels are easier to remove with a mounting option for Shimano Shadow RD and Shimano Shadow RD+ rear derailleurs. Direct mounting is designed for a wide range of modern frames with large-section chainstays, particularly mountain bikes with thru-axle dropouts. High flexibility in frame design. No special tools required (M10x1 mounting bolt, without e-clip)!
Shimano Shadow RD
Thanks to the Shimano Shadow RD mechanism, the new rear derailleur is intended for a more aggressive riding style. The low-profile design offers numerous advantages, as does the unique tensioning system that prevents the rear derailleur from contacting the chain on very rough terrain. The result is efficient and very quiet operation.
Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.
Manufacturer
Shimano Inc.
3-77 Oimatsu-cho, Sakai-ku, Sakai City, Osaka 590-8577, Japan
bike.shimano.com/it-ITproduct-safety.html
EU responsible person
Shimano Europe B.V.
High Tech Campus 92, 5656 AG Eindhoven, The Netherlands
info@shimano-europe.com
Product identifier
EAN 4550170168513 · SKU IRDR9250F