I rented a 125cc bike for a trip to Doi Inthanon. It was absolutely great. My friend rented a 125cc bike for the same trip, from Mango Rentals. His bike struggled to get up the hills :)

Very professional, fair and helpful staff. We got a great Click,drove it up to Pai and back, and kept our big bags with them while doing it. Check in and check out was seamless. The lady down the street at Dang was trying to smooth talk but wanted to keep our passport. Nope! Glad we headed over to Cat!!

The bests! we rented a scooter for 1,5 month. They are really pro, they really know what they are doing. I think they have the best prices and quality in Chiang Mai. our first scooter was great and we did a loop to Chian Rai, then we changed because we did a second loop to Mae Hong Son. At the end was like 3.000 km. Once the chain get off the bike, we where very far, we talk and they say we will pay for the repair costs, but thai people is so great than the mechanical did not charged us! Also in once they reject to rent a bike because they needed to check it before to rent it (some one returned it some hours before).. that not happened in other places. Also after 1.000 km I came back, they change oil and replace brakes in 1-2 hours. Also as we did 2 long trips we bought 2 full face helmets and after we finished they sent them to us to Bangkok for our next trip. just perfect!