MACUN Cycles

Handmade Titanium Bicycles Fresh Frames For Life

Services What can I Do for You?

Custom Titanium Frames

Looking for a custom handmade titanium bike?
Visit the gallery for some work samples!

TI Frame Repairs

Crashed Your frame?
Send me some pictures and I will check what I can do for you!

Bike Fitting

Not sure which size you need?
No problem – I will sort that out for you!

about me my name is alex and I live in Cologne


When I was a young kid I spent a lot of time with my grandparents in Nuernberg where my grandfather trained professional racing cyclists. I was fascinated by their speed, their dedication and of course of by the bicycles. But somehow during the next years I lost track of that passion…
After my studies of computer science I worked as an IT consultant and travelled the world for several years. Having enough of being on the road five days a week I started working for the German postal service. But more and more my thoughts drifted apart from IT related topics and instead I got my head around my old passion.
In 2015 my son was born and my wife and I took one year parental leave to spend time with the greatest gift we ever received. During that time I got down to business – I wanted
to learn how to build frames and decided to become self-employed.

My journey:

  • Lessons in TIG welding
  • A frame building course at The Bicycle Academy in Frome
  • Finally I had the first contact with titanium at Daniel Pleikies (WheelDAN) in Berlin where I built my first titanium frame

Process how things work

  • In cooperation with You I carefully design every aspect of Your new bicycle according to Your needs
  • Once the design has been finalized a deposit is required
  • Setting up the jig and mitering the front triangle is the next step
  • Once the front is finished the rear triangle will be mitered, tagged and welded
  • The alignment will be checked and small braze-on-parts like the bottle bosses etc. will be attached
  • Last but no least the finish: Hand brushed or sandblasted – what shall it be?


Your new MACUN bicycle will company You for a lifetime and will be the ride You will love most.

Fresh Frames For Life! I design every frame according to your needs



 +49 151 240 38 997


Bachemer Str. 131
50931 Cologne

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