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Generic · Baby seat frame clamp holder
Convert a 34.9 mm frame mount for a braze-on front derailleur.
$49.99
PriceIn stock, ready to ship
This clamp band adapter lets you fit a compatible braze-on front derailleur to a frame that requires a 34.9 mm band clamp. It is a straightforward installation solution for updating or replacing your front derailleur setup.
Sold by Ashburton Cycles
Verified store
Price
$49.99
Clamp diameter
34.9 mm
Compatibility
Braze-on front derailleurs
Frame requirement
Band-clamp mounting
The Generic SM-AD91 front derailleur clamp band adapter provides a practical way to install a braze-on front derailleur on a frame designed for a band-clamp fitting. Its 34.9 mm clamp diameter is the key measurement to check against your frame before ordering.
Choose this adapter when you need a clean, straightforward mounting solution rather than replacing the frame or front derailleur. The precision-fit design is intended to support reliable front shifting, while the durable construction is suited to the regular demands of cycling.
Please confirm that your derailleur is a compatible braze-on type and that your frame requires a 34.9 mm clamp band before purchase.
Ideal for anyone fitting a compatible braze-on front derailleur to a frame with a 34.9 mm band-clamp requirement.

34.9 mm clamp diameter
Designed for frames requiring a 34.9 mm band-clamp fitting.
Braze-on compatibility
Provides a mounting interface for compatible braze-on front derailleurs.
Straightforward installation
A practical adapter solution for converting a suitable frame to band-clamp mounting.
Precision-fit design
Made to provide a secure, accurate fit between the frame and front derailleur.
Durable construction
Built from durable materials for dependable use during regular riding.
Supports front shifting
Designed to help maintain the intended positioning of a compatible front derailleur.
Generic is a catalogue designation for products presented without a distinct store-brand identity. The term describes the retail classification rather than a separate manufacturer history or geographic origin. Generic-labelled products can still have clearly defined specifications, standards and compatibility requirements. For this component, the catalogue designation is retained while the fitment details identify the relevant road bottom bracket application.
Generic · Baby seat frame clamp holder
Convert a 34.9 mm frame mount for a braze-on front derailleur.
$49.99
In stockClamp diameter
34.9 mm
Compatibility
Braze-on front derailleurs
Frame requirement
Band-clamp mounting
Product type
Front derailleur adapter
This clamp band adapter lets you fit a compatible braze-on front derailleur to a frame that requires a 34.9 mm band clamp. It is a straightforward installation solution for updating or replacing your front derailleur setup.
The Generic SM-AD91 front derailleur clamp band adapter provides a practical way to install a braze-on front derailleur on a frame designed for a band-clamp fitting. Its 34.9 mm clamp diameter is the key measurement to check against your frame before ordering.
Choose this adapter when you need a clean, straightforward mounting solution rather than replacing the frame or front derailleur. The precision-fit design is intended to support reliable front shifting, while the durable construction is suited to the regular demands of cycling.
Please confirm that your derailleur is a compatible braze-on type and that your frame requires a 34.9 mm clamp band before purchase.
Ideal for anyone fitting a compatible braze-on front derailleur to a frame with a 34.9 mm band-clamp requirement.
34.9 mm clamp diameter
Designed for frames requiring a 34.9 mm band-clamp fitting.
Braze-on compatibility
Provides a mounting interface for compatible braze-on front derailleurs.
Straightforward installation
A practical adapter solution for converting a suitable frame to band-clamp mounting.
Precision-fit design
Made to provide a secure, accurate fit between the frame and front derailleur.
Durable construction
Built from durable materials for dependable use during regular riding.
Supports front shifting
Designed to help maintain the intended positioning of a compatible front derailleur.
Generic is a catalogue designation for products presented without a distinct store-brand identity. The term describes the retail classification rather than a separate manufacturer history or geographic origin. Generic-labelled products can still have clearly defined specifications, standards and compatibility requirements. For this component, the catalogue designation is retained while the fitment details identify the relevant road bottom bracket application.