I am going to be in Kona for business at the end of February. Does anyone know of a shop that rents Tri-bikes?
Send a message to Football Mom, she has all the “local connections”. 
B & L Bikes or Hawaiian Pedals come to my mind.
Aloha,
Larry
Bring your own clip-ons if you want aerobars.
I rented a Giant from B&L over Thnaksgiving week for about $22 -$24 a day. It had the adjuatable stem so I was able to get a decent fit. Very cool people in the shop and it’s right in the center of town. If you can head to the Hilo side of the island and ride the “Red Road”. One of the greatest rides I have ever seen.
Dave
thanks Larry…
Swimfast: the two shops in town that rent both road bikes and mountain bikes are Bike Works (808) 326-BIKE and B&L Bikes (808) 329-3309. Send me a PM with your email address and I’ll forward you an event calendar. There are a few local events going on around the time you’ll be here.