I contacted Hui, the owner of Pegasus shop by email before I came to Yunnan where I planned a two weeks bicycle trip from Kunming to Jinghong (Xishuangbanna). Hui replied the same day and was very helpful and efficient. Not only he proposed a very good -yet cheap- touring bike for rent, but he also organized the bicycle return from Jinghong, so I didn't have to come back to Kunming.
When I arrived at his shop, he was very nice and welcoming (he even invited me to his place for dinner with his family !). Before I left Kunming, he did everything so the bike suits me, helped me to fix the bike bags and front basket that I brought from France, gave me some advices for directions and gave me a map.
I definitely recommend this shop !