Taking care of the details for speed

SpeedTheory is based on David Bowden’s extensive knowledge of bike fitting, equipment, coaching and power analysis. With the mission to cover every detail to make you faster.


David has designed the Velogicfit 3D Motion and 3D Aero performance bike fitting products that he uses in the studio. He has trained bike fitters within NZ and around the world. 
With his work consulting to Profile Design he has been at the forefront of raising the standard of aerobar and road bar design.
Profile Design’s current lineup shows what happens when somebody who actually rides tri bikes understands the way tri bikes should fit, understands the imperatives of the product and is in charge of making the product.

Whether you are wanting to be more comfortable on your bike, be faster and more aero-dynamic, break your own records or a world record, if it is on a bike you need to talk to David. He can even help you before you purchase your bike to ensure it will fit you like a glove.


David Bowden

David has over 20 years experience in bike fitting and many years coaching and analysing courses and cycling performances. 

He currently coaches a number of athletes including:
  • Asia Pacific Ironman Champion and 2020 Taupo Ironman Winner – Teresa Adam
  • NZ MTR triathlon squad member – Sophie Corbidge
  • Black Spokes Pro Cycling Team member – Hayden McCormick
  • A number of age group triathletes for half ironman and ironman distances

David is the founder of Speedtheory and well known in the world of bike fit.  He also founded a business called Velogicfit which creates 3D Motion Capture bike fit software and 3D Aero software.  He uses this software in his bike fit studio in Cambridge.   

David has trained bike fitters around the world - those new to bike fitting to seasoned professionals.

Additionally he is the R&D Manager for Profile Design – focusing on developing products that improve fit options and offer superior aerodynamics for riders.

When David isnt working he is riding his bike - road, gravel, mountain, TT or commuter (drop the kids off at school bike).

Nicky Bowden

Nicky is general dog's body behind the scenes at Speed Theory. Nicky is who you need to contact to make a booking with David as she is efficient at making things happen.  She has been trained to an advanced level in bike fit and although she doesnt practise the 'art' she can have a conversation with you to determine what kind of fit you will require.

Nicky is also the Festival Director for the RIDE Festival which encompasses the NZ Elite Nationals time trial and road races as well as mass participation races on the Gran Fondo day, in Cambridge NZ.

Passionate about people being active for physical and mental well being, you will find Nicky mountain biking or road riding or cruising with the family by bike.

Chat to us today

We are always talking bikes - so let us know how we can help you be more comfortable, efficient and faster on your bike.