http://www.mortchmotor.com

821 (First number in the series) = The length of the belt in millimeters.
20 (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.

821-20-30 scooter CVT belt typically used on 125cc-150cc 4-stroke GY6 engine scooters. Also fits many ATVs, go-karts and dirt bikes.

One Box packed with 116pcs.
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).