PTN R-Evolution - Protective rim insert. Revolutionary dynamic structure developed with great effort and know-how of many years of development of special rim inserts. Thanks to the new shape it allows precise fit into the rim and thus perfectly protects the rim and the tire. -Easy installation - High rim protection due to new shape -stable sheath support - rolling resistance reduction - better control -compatible with all types of sealants -Low weight Mass: S - 29 ": 68g S / M-29 ": 78g M / L-29 ": 109g S - 27.5 ": 65g S / M - 27.5 ": 75g M / L - 27.5 ": 105g In the package:

2x PTN R-Evolution

2x PTN ultralight valveLUFTY 2PTN