1. Selecting a bike: Consider investing in a good road bike or a triathlon-specific bike. Test ride a few bikes to find one that feels comfortable.

2. Finding the right running shoes: Running shoes are essential for avoiding injuries. Buy shoes that fit your feet well, have good arch support, and are designed for the type of running surface you’ll be on.

3. Choosing a wetsuit: A wetsuit can make swimming in cold water more manageable. Make sure the wetsuit is snug but not too tight and made of good quality neoprene material.

4. Triathlon clothing: Invest in high-quality and comfortable triathlon clothing. This will help in the transition from swim to bike and bike to run.

Overall, start with essential equipment, and upgrade as you need. Practice with the items you’ve boughts multiple times to be comfortable when race day arrives.