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Z Cage AdapterClever solution for saving space on the frame

Matthias Borchers

 · 28.04.2026

Adapter rail Z Cage adapter from Zéfal
Photo: Zéfal

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The Z Cage Adapter is a practical rail with slotted holes that allows bottle cages to be mounted offset by up to 40 mm. The lightweight extension bar creates additional space, especially for small frame sizes or bikepacking setups. Weighing just 22 grams at a price of 9.95 euros, it's a smart helper.

Who doesn't know the problem: with compact frames or fully packed gravel bikes, space quickly becomes tight. The Z Cage Adapter provides an elegant solution. The 132 mm long extension bar made of glass fibre reinforced technopolymer allows bottle cages to be positioned flexibly and makes optimum use of every millimetre of the frame. The offset range of 40 mm offers sufficient scope for customised configurations. Thanks to the screws supplied in two lengths (M5 × 10 and M5 × 16), it can be easily fitted to most frames and bottle cages. Whether for everyday use, long tours or bikepacking adventures - the inconspicuous black adapter is a versatile problem solver.

Technical data

  • Material: Glass fibre reinforced technopolymer
  • Screws included in the scope of delivery: 2× BHC M5×10, 2× BHC M5×16
  • Colour: Black
  • Dimensions: 17 × 10 × 132 mm
  • Weight: 22 g
  • RRP: 9,95 Euro >> at Amazon or Bike24 available
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Matthias Borchers

Matthias Borchers is an expert for clothing and accessories in the test department of TOUR. As an amateur cyclist, he has completed the TOUR-Transalp and the TOUR-Trans Austria. His reportage trips from San Francisco to Sakai and 17 trips to the Tour de France with around 30,000 motorhome kilometres are also formative.

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