At approx 1am on Saturday morning there were 5 bikes coming along Dandenong road. I watched them all pull up at glenferrie road lights at the front of the grid. The lights turned green and they all took off hard, some doing small mono's but they then had to brake real hard for the next set of lights which were about 50 metres from there start position. The interesting thing was the front bike had to brake like crazy to stop and actually "axle tramped" either the front or rear coming to a stop. I couldn't see clearly cause it was dark but is this a common thing for either the front or rear to tramp like this?? Is it particular to certain bikes or is it just the rider? Does anyone know who they were or was actually there? It wasn't friday night coffee people was it?