Thanks and what? lol there are streets 30 km/h in Toronto my street is 30 Km/h and i may have understated the speed they go fairly fast i have never seen a biker in the flow of traffic on the main streets they are always on the side of the road unless downtown. And i know i need to do some homework in certain areas that's why i signed up lol i thought some people could answer questions like the one guy did not just link Wiki articles lol. I am also only 14 years old and have a lot of growing to do my current height is 5'4 and these bike size charts such as this one Sportchek Bike Sizing - SportChek.ca say a 52 cm is exactly what i need and then other ones say completely different so i was looking for some opinions. Like is road bike sizing similar to hybrid or completely different.