My Marta Sl brakes are about 3 years old. They just don't bite like they should. on a steep downhill i really gotta squeeze to get stopped. I've tried new and different rotors(avid cleand sweep and roundogon, hayes, and magura) and pads both magura and off brand. i recently bought the magura brand performance grade pad for the front and it still isn't enough. I have 2 friends with the same brakes and both of thiers are much more powerful than mine and they both have 160mm rotors on 29er wheels so i would expect them to feel the same but they don't.
Is there something else that governs the braking power other than the pads and rotors? In other words can a complete overhaul with new fluid and a clean & lube for the pistons help this issue? I know for a fact that 160mm marta's are powerful enough for what i'm looking for mine just aren't performing up to snuff.
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