SHIMANO Ultegra/Dura-Ace
SHIMANO Ultegra/Dura-Ace

SHIMANO Ultegra/Dura-Ace

This product is composed of a carbon cage and two 7075 aluminum pulleys (14 & 17 teeth) with full ceramic sealed bearings.

Please note : In this version, the Oversize cage is only compatible with the Shimano Ultegra R8000-8050-8070 / Dura-Ace R9100-9150-9170. 

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Shipping within 24 to 48 hours (working days)


Designed by our French Engineers Nova Carbon Ceramic rear derailleur improves the fluidity of your transmission, enhance efficiency to satisfy the most demanding.

Made in very high-end materials: an ultra-light carbon fiber and full ceramic sealed bearings.

Two Oversized aluminum wheels, which coupled with full ceramic sealed bearings decrease the chain winding angle with minimal friction.


Weight : 68 g

Watt Saved : 4 - 5 W compared to a conventional cage.

4 years warranty

International shipping and delivery.

Please note

You should use a new chain

We recommend a maximum 32T cassette for optimum gear change.

For a compatible upgrade with the Nova OSPW System GS (medium cage), please check the tutorial video :

In this version, the Oversize cage is only compatible with the Shimano Ultegra R8000 Series / Dura-Ace R9100 Series.

The Nova OSPW System is NOT compatible with the clutch equipped Ultegra RD RX800 & RX805.


Our installation tutorial video :

How To Calculate The Correct Chain Length & OSPW NOVA Shifting Maintenance for Shimano, please check the tutorial video :

Follow this after installation

- Check standard setting of High and low limit screw of your derailleur when shifting upward and downward

- Set tension screw as explain below 

- Check or adjust derailleur indexing


All orders are shipped via DHL Express or Colissimo within 24 to 48 hours (working days) after placing your order.

Colissimo - Delivery time : 4 to 7 working days

DHL Express - Delivery time : 48 to 72 H for France & Europe / 3 to 6 working days for international

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