JLSB (Jointless Space Belt) is put in use on Roadiac WF-1. Nankang is the tire manufacturer who takes “Single Steel Winding” technology into application on MCR. Comparing aramid or other fibers, steel belt could provide stronger stability, handling, stiffness and temperature control. Roadiac is also less possible to be pierced and safer.

“JLSB – Jointless Space Belt” in conjunction with the Nankang “Single Steel Winding System” is what Nankang calls the principle of the zero-degree steel belted carcass, which stands for the greatest stability in radial tires for motorcycles. Stability and greater stiffness of the carcass compared with the conventional use, for example of aramid belts, in carcass construction ensure the greatest possible stability in every driving situation, perfect feedback to the driver, confident handling, and optimal operating temperature of the tires. The profile design optimizes drainage for use in wet and rainy weather conditions. Front and rear tire profile are perfectly coordinated with each other to give the driver optimal safety when driving in the rain. The well conceived profile design is superior in aquaplaning conditions as well.

Easy handling, high mileage, perfect grip on wet surfaces, and in particular, safe behavior in various weather conditions are the requirements for motorcycle tires in the sport-touring class. The rubber mixtures used for the Nankang Roadiac fulfill the expectations of demanding, safety-conscious bikers.



120/70 ZR17 (58W)
120/60 ZR17 (55W)
110/70 ZR17 (54W)



180/55 ZR17 (73W)160/60 ZR18 (70W)
170/60 ZR17 (72W)190/50 ZR17 (73W)
160/60 ZR17 (69W)150/70 ZR17 (69W)

More Information here (pdf-file)