Ironman Bike Metrics (IMAGE) Dartmouth College Caption The analysis used digitizing software to measure the height and limb length (yellow lines) of Ironman triathletes from photos of the race’s cycling event based on the uniform wheel diameter (magenta line) of racing bikes. Credit Image by Amy Bucci, Dartmouth College Usage Restrictions N/A License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.