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We're a small company based in Hermanus, South Africa who loves the journey of creating bespoke bicycles.  


We know each person is different, each body has unique bio-mechanics and no-one rides in the same manner.

At Calculus Bikes we believe every rider should have a perfect ride.

We engineer each bike according to our clients' exact needs and ensure that the finished product is the best possible version of their dream bike.



With long adventures on the road, a custom titanium bike with bespoke geometry makes every ride special.

  From a weekend long ride to crit race the luxury of titanium is un-beatable.


On gravel roads nothing feels as incredible as a custom titanium bike with bespoke geometry.

  Each tube, angle and mounting is specifically designed for the rider's ideal application

Mountain and Adventure

On the mountain or ultra distance adventures the details of the design cannot be overstated.  Bespoke geometry ensures that the handling can be tuned to perfection for every rider.


The Process

03 clients

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Each project starts with a bike fit.  We only use the best fitment technology and most reputable fitting studios.  We partner with studios across the world to ensure we can provide a supreme level of service to both local and international clients.



Your fit report is the starting point for the design process. 

Through extensive client discussion each unique aspect of the bike is identified and amalgamated to create a dream bike.



Each frame is made with its unique tube set and according to the custom measurements. 

With the focus on accuracy and expert craftsmanship, we only deliver the best.


Contact us for your dream bike

Send us some info on your dream and we will contact you shortly

Thanks for sending!

Hermanus, Western Cape, RSA

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