Thanks Ben Marshall for the bike tips.
Ben covers;
Tyres
Race wheels
Race day support
Self sufficiency on race day
You can find out more about Ben and Performance Bicycle Tuning on their website https://www.performancebicycletuning.com/
To find out more about Ironman New Zealand training and racing head to the Foottraffic Coaching website. You can also signup for the free "Insights into training and racing Ironman New Zealand" email series
https://www.foottrafficcoaching.com/top-tips-for-ironman-training-and-racing