Sustainability is important in all aspects of life. If allows for consistency.
For your triathlon performance?

your approach to training – sustainability = consistency

your bike fit – fit allows for comfort you can maximize aerodynamic gains, ride faster and run well off the bike

run pacing strategy – you want to think about being at your best in the final minutes of the race, not when first coming off the bike…
Plan for it. Train for it. #sustainableissuccessful