Hello. Past week i purchased a trek farley 7 from my loca dealer. Awesome bike. I hav a framed minnesota 1 and what a difference lol. I worked and cleaned my framed a couple times but now this farley is all mew to me. Hydro brakes. Direct chainring. The hubs with thru axle. I figured out the bottom bracket and crankset with the chainring. Fairly simple. But i never had hydraulic brakes befor. Few questions

Are hydro brakes noisy? Rear. Mid it squeaks and sqawks but normal braking it locks up. Front grabs but i cant throw myself over the bars unless u lean forward some lol.

The hubs. I can remove the wheel off the bike but after that im stuck.. any pointers anyone. Itll be appreciated.