Brother Cycles Big Bro UDH / Full Mount Plate
The Brother Big Bro UDH / Full Mount Plate is the sliding drive-side dropout plate for compatible rail-dropout Big Bros from 2026 onwards. It provides the mounting arrangement for a UDH hanger or a SRAM Full Mount derailleur.
The plate replaces the standard drive-side thru-axle plate only; the non-drive-side plate remains standard. It mounts on the outside of the dropout and is secured using the standard M8 mounting bolts with the special stepped washer shown in the supplier photographs.
Check the frame year and rail-style dropout arrangement before ordering. This part is the dropout plate, not the separate UDH hanger or a derailleur. It is distinct from the earlier Big Bro thru-axle conversion plates and the Rohloff-specific dropout sets.
Frequently Asked Questions
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Please get in touch with a member of the team either by phone (01313745324) or email ([email protected]) where on of the team will be more than happy to help.
ProjektRide Bike Shop Edinburgh
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If the item is showing in stock, we aim to post the product within 24 hours. Please allow 5 working days to receive the item.
Postage is free on orders over £50. Orders under £50, our postage charge is £3.99.
We also have a physical store, if you are local please pop in -
ProjektRide Bike Shop Edinburgh