Wheels mfg DROPOUT-655 Derailleur Hanger for Bianchi, Cinelli, Jamis, MASH & Author

Wheels mfg DROPOUT-655 replacement derailleur hanger for Bianchi, Cinelli, Jamis, MASH & Author. Designed for the compatible bicycle models and frames listed below.

Compatible Bike Brands and Models

Bianchi

• Orso – 2018-2019

Cinelli

• Hobootleg Geo – 2020 – OEM / Ref. 739HGHDS – depends on your axle thread pitch.
• Hobootleg Interrail Disc – 2020 – OEM / Ref. 739HGHDS – depends on your axle thread pitch.

Jamis

• Dragon 29 – 2021 – OEM / Ref. 65-0023

MASH

• All-Road – 2022 – depends on your axle thread pitch.

Author

• Ronin SL – 2021-2023 – OEM / Ref. C66-H5 C66-H5/2 39710154 – depends on your axle thread pitch.
• Ronin XC – 2021-2023 – OEM / Ref. C66-H5 C66-H5/2 39710154 – depends on your axle thread pitch.

Additional Compatibility Information

Axle Thread: M12x1.75. Attaches to frame with: 2 x M4x10mm socket head screws.

OEM and Alternative Derailleur Hanger Numbers

• Wheels mfg: DROPOUT-655
• Cinelli: 739HGHDS
• Jamis: 65-0023 – Dragon 29
• Author: C66-H5 | C66-H5/2 | 39710154

Similar / Alternative Derailleur Hangers

• Pilo D907 – Alternative - M12x1.75
• Pilo D927 – Axle thread: M12x1.5

Fitting bolts: Included.

Compatibility note: Compatibility information is provided as a guide and may not include every compatible bicycle. Derailleur hanger fit can vary by model year, frame version and production revision, so a listed bicycle may use a different hanger. Before ordering, remove the original derailleur hanger and visually compare its shape, mounting holes, threads and other details with the product photos.

How to Check Compatibility

Before ordering, check the bicycle brand, exact model, model year or frame generation, the shape of the original derailleur hanger, and any OEM or part numbers where available.

If several visually similar derailleur hangers are available for your bicycle, compare the product photos and compatibility information carefully.

Not Sure Which Derailleur Hanger You Need?

If you are unsure whether Wheels mfg DROPOUT-655 fits your bicycle, please contact us before ordering.

For identification, please send us:

• a clear photo of the original derailleur hanger removed from the frame, showing both sides;
• a photo of the bicycle frame / dropout area where the hanger is installed;
• the bicycle brand, model and model year, if known.

You can also use our Derailleur Hanger Finder or browse all replacement derailleur hangers.