Talaria Sting R MX4 is a path bicycle with a 45Ah 60v battery, a 220mm x two.3mm rotor, and a 45Ah 60v battery. it's a gearbox, a completely new gearbox, and also a new motor with far better efficiency and https://zubairgbbi876719.kylieblog.com/29408589/about-talaria-sting-r-mx4-parts