Stiffshifter

Stiffshifter – Stiffening for the UDH derailleur hanger

The Eightpins Stiffshifter is the next evolutionary step for bikes with UDH derailleur hangers. Modern rear derailleurs are longer, wider, and more exposed than ever before – and the UDH derailleur hanger is simply too weak for this. Even slight contacts with rocks on the trail can cause derailleur hangers to bend.

This is where the Stiffshifter comes in: it stiffens the connection between the frame, derailleur hanger, and rear derailleur, ensures more precise shifting, and reliably protects the entire system from deformation.

Why you need the Stiffshifter

• Protects your UDH derailleur hanger
  The UDH is up to 50% thinner than many other derailleur hangers – perfect for compatibility, but prone to bending. The Stiffshifter significantly reduces this weak point.
• Stabilizes modern derailleurs
  Due to the large size of today's derailleurs, enormous lever forces act directly on the Derailleur hanger. The Stiffshifter absorbs these forces and distributes them better structurally.
• Prevents shifting problems
  Even the smallest deviations in the Derailleur hanger lead to crooked gears, chain jams, or jumping cassette jumps. The Stiffshifter ensures permanently precise alignment.
• Massive stiffening through clever design
  A precise pin engages directly with the Derailleur's mounting screw – the result: a significantly stiffer, more robust, and more durable connection.
• Easy installation – big impact
  The Stiffshifter is mounted with the UDH screw, automatically engages with the Derailleur, and can be installed in just a few minutes.

Ideal for

• Trail & enduro riders
• Bikes with UDH standard
• Situations with frequent contact with rocks
• Riders who expect maximum shifting precision
  

Technical highlights

• Compatible with all UDH derailleur hangers
• Pin stiffening for rear derailleur mounting
• High-strength CNC-machined aluminum
• Weight: 17.3 grams
• Designed and manufactured in Austria

Conclusion

The Stiffshifter is a small but incredibly effective upgrade for any bike with an UDH derailleur hanger. More stability, more precise shifting, and better protection—all in a single, smartly designed component.

Upgrade your bike. Make your Derailleur hanger strong.