I was part bike-rider once and I would use those loop things to hold my foot to a petal but I could not lock my feet with those clip-ons ... It's not so much fun but a stationary bike worked for me ...
I just weighed in at 10stone Which is 147lb lol guess there are advantages to being 5'7" lol gunna go eat cake now an still be light..
I'm also 6'6", I could not imagine being 205lbs. Haven't been that since high school. Best weight for me is about 225, that said I need to lose 20lbs this winter. Too many breakfast burritos from McDonald's!