http://www.mortchmotor.com

729 (First number in the series) = The length of the belt in millimeters.
17.7 (Second number in the series) = The width of the belt in millimeters.
30 (Third number in the series) = The angle of the teeth on the belt.

729-17.7-30 scooter CVT belt, sometimes known as 729-18-30. Typically used on a variety of 4-stroke, GY6 engine scooter brands.

Also fits below bikes,

HONDA 23100-GW3-018 730X18.00
KYMCO ZX50 FEVER 23100-KCX-900 730X18.00
KYMCO 50 Agility 4T(05/>) 23100-KEB7-9000
KYMCO 50Bet&Win/Euro 2(02/>) 23100-KEB7-9000
KYMCO 50Dink/LC/Classic Euro2(99/>) 23100-KEB7-9000
KYMCO 50People/Euro2(99/04) 23100-KEB7-9000
KYMCO 50People S(05/>) 23100-KEB7-9000
KYMCO 50Super-9/Sport Euro2(00/>) 23100-KEB7-9000
KYMCO 50Topboy(97/>) 23100-KEB7-9000
KYMCO 50Vitality 2T/4T(04/>) 23100-KEB7-9000
KYMCO 50Yup/Euro 2(02/>) 23100-KEB7-9000

One Box packed with 130pcs.
Mortch Motor parts supported the Brands of BAOTIAN, BASHAN, BENZHOU, CFMOTOR, CHARMING, DAYANG, DINLI, FUXIN, GEELY, GILERA, HANGLONG, HAOJIN, HAOJUE, HONGZHOU, HUATIAN, JIAJUE, JIANSHE, JINLUN, JMSTAR, JONWAY, KAITONG, KEEWAY, KINROAD, KYMCO, LIFAN, LINGBEN, LINGTIAN, LINHAI, LINTEX, LONCIN, LONGJIA, MAWI, MEIDUO, MOTORRO, PIAGGIO, QINGQI, RHON, RIEJU, SACHS, SHINERAY, SKYGO, SUKIDA, TAOTAO, VESPA, VONROAD, WANGYE, WONJAN, XINGYUE, XINLING, XINTIAN, YIBEN, YINGANG, ZHONGYU, ZNEN, ZONGSHEN, etc.

Note:
1. Please make sure this parts fits your particular model. Many bikes have the same name but use different parts depending on the year of manufacture.
2. The photos are for your reference only, and the goods is subject to the real product which you will receive.
3. Import duties, taxes and other customs related charges are not included. Buyers bear all responsibility for all extra charges incurred (if any).