Having recently begun commuting Nth Sydney to Nth Ryde I find myself a) bored brainless and b) amazed at how many cyclists there are on the cycleway.

In an effort to relieve the tedium of the 13k ride I have devised a game to amuse myself - spot the MTBer doing training/undercover as a scummer. There are a number of attributes you can look at that give clues as to the likelihood, all unreliable, but anyhow.