Critical Mass is a global movement of cyclists reclaiming the streets and showing the presence in bigger mass. Critical Mass Kathmandu monthly rides started since April 2013. The October edition of Critical Mass Kathmandu was dedicated to Late Dr. Pralad B. Yonzon. On 31st October, 2011 Dr. Prahlad B. Yonzon, a well-known wildlife biologist of Nepal met with an accident while cycling home from office.
On 26 October, 2018 with the theme of “Road safety in Nepal” we invite all the cyclists and non- cyclist people to show their concern by being visible.
The Critical Mass Kathmandu meets at 5:30 PM on the last Friday of every month at Basantapur