Current cost of living here + transit/biking

Hello people of London, I will be moving here for a 1 year work contract come May and am curious about the current cost of living. How much people are paying for rent for different kinds of arrangements, say studio apt, 1 bed, or living with roommates?

Also what is the transit situation like, obv depends where Im going/coming from, but in general? Im coming from ottawa where its a joke, but I had a bike and got around basically everywhere with that. Is the city setup at all to accommodate biking?

Appreciate any comments and answers, thanks!