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What road bike do you have? The frame and fork will determine how big a rotor you can run.
What make and model of brakes are you running?
Not all bike shops are created equal, you might have a shitty bleed that's stopping you getting full power.
Bigger rotors will give the most benefit but you probably won't be able to get bigger than 160mm on the frame but the fork might be able to take 180mm.I'm 100kg give or take a kilo or two depending on which way the wind is blowing.
I run 160mm discs on my road bike with hope rx4 calipers and they stop me ok.
TotalShanner-
Thank you! [and thanks @hippy and @snottyotter too]
Levers and callipers are I think 5800 (105).
Bike is a random custom steel I bought second hand. It has a 38cm tyre on it currently - it’s not a proper gravel frame but can fit 35s with mudguards front and rear. I think it will have enough clearance for a bigger disc on the front, I assume it depends on the angle the fork “leans in” towards the headset, ie how vertical the forks are vs the centreline of the bike?
Good to know they work for you, they are probably what I will get but want to work out if they’re absolutely the best first.
When I’m back in shape/a bit lighter it may matter less, but 100kg to 125kg is still a big leap!
t.o.
Big statement but bigger [/fatter] than you 🤗
6’6” and 124kg at last count, ideal weight is normally 110-112kg.
I had it serviced and he put shit pads on, which I accepted because I didn’t know better. First proper downhill they stopped doing anything much at all which was terrifying, I stopped by wearing down my heels on the tarmac.
Took it to another shop immediately who replaced the pads with shimano, checked the fluid, and gave it a once over and they’ve been ok ever since, but I got discs because I wanted them to be good not ok.
I am more at the doing 80kph and wanting to stop asap end than the dragging the brakes end.