Why a fitting with Dartfish

Correct cycling position is a question of arranging three contact points between the rider and bike:
1.Where the feet clip into the pedals,
2.Where the sit bones contact the saddle,
3.Where the hands/elbows hold the handlebars.
The cleats are the only contact point locked into position and changes here can influence the action of the entire leg.
Seat height and fore/aft position influence the transfer of power between the legs and the pedals. Aerobar height determines comfort and aerodynamics but be careful, bars that are too low relative to seat height can decrease power production. For triathletes, these factors are especially important because they must be maintained while trying to get the athlete as low and aerodynamic as possible.
A comprehensive bike fit that includes a dynamic assessment, using tools like Dartfish video analysis software, can determine if cycling posture and pedaling mechanics need improvement. This software can reveal problems with joint motions and display pre and post positions simultaneously using an overlay function that can fade in and out between the two. This software can also determine if changes made to the bike affect technique or dynamic fit, i.e. how an increase in seat height can increase ankle plantar flexion. These changes to form are not always readily apparent visually, but by using slow motion video playback or zooming in on a joint angle it can be very discernible

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