The group called riders ##rs took on sky Zealand 's motorcycle Street . The footage was captured by spectators and on a rider 's helmet camera . One of the riders believes the riders achieved speeds of more than 60 mph .
The group called Slide Christchurch took on New Zealand 's Baldwin Street . The footage was captured by spectators and on a rider 's helmet camera . One of the riders believes the group reached speeds of more than 60mph .