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Frame Builder

Company Activities

Handmade custom frames to order, built in house




Baden-Württemberg Pforzheim


Pforzheim 75172


Habermehlstr. 11


Office phone

49 (0) 176 32054630

Product Categories

Frame Builder

Company Activities

Handmade custom frames to order, built in house

Member since

October 8, 2017

Favourite type of riding

Mountain biking, Recreation

Business hours

Monday: 9:00 AM - 5:00 PM

Tuesday: 9:00 AM - 5:00 PM

Wednesday: 9:00 AM - 5:00 PM

Thursday: 9:00 AM - 5:00 PM

Friday: 9:00 AM - 5:00 PM

All times are (GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna

Preferred contact



Best time to call

During business hours




Company bio

Alex Clauss began building bicycles as a child, creating these from scrap parts to raise funds for a local charity drive run by his local fire department. Several years later, Portus Cycles grew out seeds sown when Clauss worked for German bike parts company Tune - where he was encouraged to be creative and develop his engineering ideas. A few months later, with NAHBS on his mind he consulted with his wife, Maria, and in 2013 Clauss took a frame building course at The Bicycle Academy in the UK. He reckons his first frame came out very well, backing up the claims of TBA founder Andrew Denham, who says this is normal in his course. He began his own business after purchasing Campagnolo dust caps from a liquidated catalog company and with the profits gained set up Portus. In 2015 Portus teamed up with Mountain Bike News magazine in Germany and its Internet Community Bike project. He brought customized steel frames to the table, set up an agreement and took orders. As for the company name, Portus, it is derived from the ancient Latin name for Pforzheim, the meanings of which include port and refuge. The applications of this name to the company include: A place where people can go and feel good, where different streams and ideas and notions converge, and a real alternative to the unified cycle of the bicycle industry

Owner's bio:

Alex Clauss is a spiritual frame builder. Having been helped into a more positive outlook on life by religious studies during his teenage years, Clauss has stuck with the Biblical teachings, and dedicated the first Portus bike to this theme, naming it Armor of God. Sincerity and passion are two traits commonly found in the bicycle frame building industry: Clauss is overflowing with both, and in a very positive way. His enthusiasm for life and his work is infectious, and he helps spread his positive cycling energy through a volunteer multi-cultural youth program where he teaches children the skills of bicycle mechanics.

Joining method


TIG welded


Handbuilt custom frames to order

Annual output


Average wait time

2 months

Base price for a standard frame with forks and headset:


Very good at

TIG Welding

Fillet Brazing

No-charge extras

External Cable-Routing


Common billable extras

Rack Mounts

Fender Mounts

Extra Bottle Bosses



The Bicycle Academy

Company bio:


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Alex Clauss of Portus at ..

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