IMPALAPRO
Rear Derailleur Hanger Extender Aluminum CNC 7075 Anodized 13g · Black CNC 7075 ALUMINIUM · 1X · 13 G

Rear Derailleur Hanger Extender Aluminum CNC 7075 Anodized 13g

Rear Derailleur Extender, Compatible 40-50T MTB & 32-36T Road Cassettes 8-11V, Ideal for 1x Conversion or Cassette Upgrade

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ENGINEERING

More reach for big sprockets

It moves the rear derailleur back and improves how it works with larger-than-usual sprockets and cassettes. Essential for a 1x conversion.

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EXTENDERS · 7075 ALUMINIUM · 7 COLOURS

Rear Derailleur Hanger Extender Aluminum CNC 7075 Anodized 13g

A rear derailleur extender in anodised CNC 7075 aluminium, 13 g. More reach for 40–50T cassettes on MTB and 32–36T on the road: the key part for going 1x.

COLOUR: Black
  • 13 g of CNC 7075 aluminiumMaximum strength for minimum weight.
  • 40–50T and 32–36T cassettesCompatible with Shimano and SRAM derailleurs, from 8 to 11 speeds.
  • Fitted with an Allen keyUses the derailleur's original bolt.
BUY ON AMAZON · BLACK Prime delivery · Returns handled by Amazon From £9.95 on Amazon.co.uk · price as of 25 Oct 2026

Specifications

MATERIAL
CNC 7075 aluminium
FINISH
Anti-corrosion anodised
WEIGHT
13 g
OVERALL LENGTH
45.5 mm
MTB CASSETTES
40T, 42T, 46T and 50T
ROAD CASSETTES
32T and 36T
SPEEDS
8, 9, 10 and 11
COMPATIBLE WITH
Shimano and SRAM derailleurs
MATING SURFACE
Radial pressure grooves
FITTING
Allen key and the derailleur's original bolt
COLOURS
7 on amazon.co.uk
TECH HUB · VIDEOHow to fit your extender

Frequently asked questions

It moves the rear derailleur back so it can reach larger-than-usual sprockets and cassettes. It's essential when converting your bike to 1x.

Complete your machine.

Engineering designed to work together.

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2-year IMPALAPRO warrantyIf anything goes wrong, the person in charge of the product will help you.
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