I'm planning to go to Guilin 7-13 April 2015. I 'd to rent a bike to travel around. Does it work?

Yes, bicycle tour around is ok. I heard that there are bikes for rental near the gate of Qixing Park, you can go there to check it out.

Bike rental shops.

1) Merida Bike Store Zhonghua Lu branch
Add: 19 Zhonghua Lu, Diecai District (by Duxiu Feng / Solitary Beauty Peak in the Wang Cheng scenic area)
Tel: 0773 2881 836
Price: 30 RMB per day, 500 RMB deposit
Getting there: ride bus No. 1, 18, 30 to the Fengbei Lu bus stop (凤北路站)

2) Giant Bike Store Jiefang Dong Lu Branch
Add: 16 Jiefang Dong Lu, Xiufeng District
Tel: 0773 2861 286
Price: 50 RMB per day, 1600 RMB deposit
Getting there: ride bus No. 2, 10, 11, 14, 18, 25, 31, 57, 206, to Jiefang Qiao bus stop (解放桥站)

3) Backstreet Youth Hostel
Add: 3 Renmin Lu, Xiufeng District
Price: 30 RMB per day, 600 RMB deposit (not required for tenants)
Getting there: ride bus No. 2, 57 or Tourist line 1 (旅游观光一号线) to Lijiang Juyuan bus stop (漓江剧院站)

Thank you very much