BANGALORE: Motorcycle-borne chain-snatchers struck at two places here on Wednesday. Two men accosted Nanjammanni of Vijaynagar 12th main around 9.30 p.m. and sped away with her chain estimated at Rs. 60,000. In the other incident, two men accosted Kalavathi, a resident of Vijaynagar around 8 p.m. and snatched her Rs. 1 lakh gold chain.