I just noticed this post. DH & I rode with Donnie of Go Cycling Maui back in the spring. We didn't do Haleakala, but did ride from Kula south and then east on Hwy 31. The headwinds heading back were pretty brutal, but it was all worth it when we got our reward of banana bread at Grandma's Coffee House. The bikes were great. There were 3 of us on the ride, and had Donnie & Evan Lawrence (of 53X11 Coffee), on the road with us, and the truck driving by and checking on us periodically. We hope to go back and tackle the ride up Haleakala soon.