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MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
  • MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel
MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel

MEROCA Bicycle Rear Derailleur Hanger Extension Aluminum Alloy Speed Change Frame Gear Tail Hook Extender 40-56T Large Flywheel

$15.00 $25.00
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Reliable shipping

Flexible returns

SPECIFICATIONS

Brand Name: Meroca

 

Meroca Derailleur Hanger Extension – Expand Your Gear Range

This innovative derailleur hanger extension repositions your rear derailleur to allow seamless compatibility with wide-range mountain bike cassettes on road-oriented drivetrains. It’s the perfect upgrade for cyclists converting to a 1x setup on their road, gravel, cyclocross, or commuter bike—offering the simplicity and weight savings of a single front chainring while maintaining a broad gear range.

It’s also ideal for riders using compact double setups who want easier gearing for tackling steep climbs, without sacrificing shifting performance in the smaller cassette cogs. With this simple add-on, most standard road derailleurs can now accommodate cassettes with up to 40 teeth.

  • Quick installation – fits in under 5 minutes with basic tools

  • Compatible with standard derailleur hangers only

  • Optimized for performance across the full gear range

Unlock new terrain and make your drivetrain more versatile with this easy-to-install solution.

Brand: Meroca

Product Name: extended tail hook

Material: aluminum alloy

Color: Black / red

Accessories: one set screw

Weight: about 17.8g (including screw)

Applicable to: mountain bike refitted with big teeth and then extended tail hook








 

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