AWESOME SUNRISE TOUR! - I was a little nervous before going on this but Nani and Joe made us feel so comfortable. They definitely know their stuff and care about everyone's safety. Exactly how you would want your tour guides to be. They checked in on everyone to make sure we all had a great time. I will definitely be recommending them to everyone I know that makes it out to Maui.

A day of beauty and adrenaline. - The early wakeup is worth witnessing the sunrise at Haleakala. Beautiful and majestic. The bike ride with Mountain Bikers was a thrill unlike any other. Highly recommend doing both - together or individually. Our tour guides Abe, Nadia, Char and Joe were awesome. Joe did a great job awakening our inner child for the thrill of going downhill on the bike ride.

Best day ever! - Gravity is your friend and we got to do it twice! Best outfit out there. Will go back next time we are there. A+++

Great time!!! - Such a fun experience and well worth the very early wake up. The sunrise was unreal as it started to break through the clouds and the bike ride was the perfect adrenaline rush to start our day. If I were doing this again, I would have brought even more warm clothes because with the wind at the top of the mountain, it was quite cold.

DO IT - You’ll Love It!!! - DO IT - You’ll love it! Yes - you’ll wake up super early. Yes - you’ll need to pack warm/winter clothes coming to beautiful Maui Yes - you’ll may not have been on a bike in a while BUT You’ll have an absolute blast. The sunrise is breathtaking. The bike ride is a super fun way to start the day. Nani and Joe took great care of us - and had us laughing all the time. These two are professionals and love what they do and where they live. I had a blast; 8 people in our whole group. You’ll start out early in the morning and end around 1030-11 AM ish. I’m a cyclist and had fun - so you will do! Thanks for Nani and Joe - y’all are the best!!

The best tour ever indeed - One of the best experiences ever. I loved the sunrise though it was too cold and then the bike ride was amazing. This group were so caring and entertaining, my friends and I had a blast and without a doubt we would do it again. Nani and Joe were the best. Love them

Great experience, views and activity - well organised - At a time it felt as if why we are subjecting ourselves to the brutality of waking up at 130 AM, bearing super super cold and windy weather, and then biking down empty stomach. But the experience has to be one of the best of all the experiences we have had. It is an early morning but prompt start; it is cold at the top and the winds make it worse (we found a large rock and stood behind it for a long while). If you can have a tripod for a time lapse of the sunrise it is fantastic. The scenery is beautiful. The bike ride down felt like the instructors were well in control. It is more like a skateboarding that a bike ride because you hardly ever pedal or break into a sweat. However you do need to use the brakes quite a bit else you feel out of control. The stop at Paui is a nice one for a much needed breakfast. Overall very very fun experience

You Only Live Once - It was breathtaking. Forget "layers," and think, "20-30°F" before sunrise– about 45 minutes after you arrive… Now, you understand. Different Tours used different bicycles from single speed to 24 speed Mountain bikes. You do not need to peddle but for one section, that is, approximately 1/10 of a mile, if that. The interruption in the ride for the town below is unfortunate, but some groups ride the top twice to make up for the loss. You do not need to be an experienced rider, but it only adds to the fun. I took off a point because of the requested heavy tipping after paying a premium (>$250)for the opportunity to ride in a van, use a simple bike and helmetand pay our way for breakfast. No vouchers. It was a little excessive.

A roller coaster ride on a bike - If you are looking for a great relaxing long bike ride down a mt., try a different island. Maui has made it impossible to coast down from Haleakala due to not being able to begin within the park or go through various towns. The ride (while interesting) consists of going down approx. 8 miles and then loading up and repeating the adventure. Not what I was looking for.

Book with them if you enjoy patronizing, condescending rude customer service. - My sister, my daughter and I booked our trip after we already arrived in Maui, our first mistake, as we had no ability to dress in layers. Our second mistake was booking on Viator, their website only says just that: Dress in layers. I hate to say our third mistake was booking with mountain riders because I absolutely loved Joe our bike guide and Spencer our bus driver and the experience was incredible and I will remember it for a lifetime.. The problem was with the women who answered the phone when I called and the women who was at the office when we arrived for our tour.       The problem started when We got a text 12 hours before our trip warning that it will be 30 degrees on the summit. It would have been nice to have been sent that immediately after booking, it would have given us more time to gather warm clothing. I called to talk to them as we were not prepared for that. I was treated so rudely over the phone. I was just looking for advice and the women said I don't know what to tell you. I told her she wasn't helpful and she got ruder. No where on the Viator website does it mention how cold it will be. It does mention directly on Mountain Riders website that wind breakers are recommended. If I had booked directly with them, I might have seen that. All she had to say to me was that she would talk to her marketing department which honestly made me feel like it is a marketing ploy to not inform people about how cold it will be to not scare potential customers away. Other companies offer jackets and windbreaker blankets. If like me you are not prepared for 30degree weather that might be a better option. I reached out to mountain riders again through email as calling and talking to the rude women wasn't helpful to let them know my concern and they suggested to bring blankets, super helpful if it wasn't 5 hour after my tour started.Be warned its freezing and windy up there.       The rudeness of the women I encountered over the phone continued on the day of the trip. While my sister was filling out the waiver, she had some legitimate questions. She was concerned about the risk of death and tried to talk and ask questions and Nannis response was I don't have to answer that. My sister choose to not go because she didn't want to die. I wish mountain riders had a kinder, warmer customer service team. The guides were both incredibly helpful and informative. I loved the history lesson and stories from both Joe and Spencer. Joe had a talent of making every rider feel comfortable. It was very unfortunate that my sister missed out on the experience because Naanni didn't want to do her job and answer some legitimate concerns.       My daughter and I had the best time on the trip. The sunrise was incredible. The bike ride was exhilarating, not scary or a death trap like the waiver made my sister feel and Naanni reinforced with her inability to take the time to answer her questions. She made it seem like people died all the time on the trip. Overall I rate the experience a 10 out of 10, guides 10 out of 10 and customer service a minus 10.