1 roll 1920 GL. One meter is 64 limbs DID is the leading OEM with nearly 70% of all Japanese motorcycles and many European brands. Leading race teams in road and off-road sports rely on DID technology. DID ERV3: The ERV3 was specially developed for racing and, despite the X-ring seals, is characterized by a very low weight of only 15.00 g / limb. For this reason, it is used among numerous racing teams, eg Yamaha in MotoGP. For both road and off-road racing, DID recommends a maximum of 750cc. - very low weight - low friction losses due to patented X-ring technology - Gold-colored interior and exterior lids (G & G = Gold and Gold) Technical specifications: - Tensile strength (kg): 3850 - Thickness of throat inside (mm): 2,00 - Thickness of throat outside (mm): 2,00 - Pin length (mm): 18,60 - Roll outer diameter (mm): 10,22 - Weight per limb (g): 15.00 - Wear Resistance Index (standard chain = 100): 3100 - Sealing ring type: X