GTRO Installation

We have put great effort into making the GTRO
the easiest front gearbox to install.

  • No frame modification is necessary
  • No professional bike mechanic knowledge is necessary
  • It is simple with only basic and inexpensive tools

How to install GTRO?

Shifting cable exchange (grip or trigger shifter)

Bar-end shifter installation

Shifting cable exchange (bar-end shifter)

Adapter bolts installation

Lever arm repositioning for better cable routing

Cable trimming & proper plastic end-cap installation

If you have another folding bike and wish to have a GTRO on it, please e-mail wiktor(małpa)efneo.com with your brand and model name.

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