Mountain Equipment Co-op is hosting this year's Burlington Bikefest at Christie Lake Conservation Area in Dundas (Map). It is taking place June 8th from 11 a.m. to 5 p.m. and is free to attend. There are numerous helpful clinics and rides to attend ($5 each) that span bicycle repair, nutrition, riding styles, Yoga and nutrition. Be sure to sign up online, as they fill up quickly.
There are also free basic check-ups, a gear swap, used bicycle drop-offs, numerous exhibits and demos from Contour, Giant, Ghost, Marin and Trek. To top it off, there is also a 25k group ride from MEC Burlington to Bikefest that you can take part in as well.