Typically when you notice braking performance decrease, that's sign to bleed and replace fluid. Are you able to lock-up front tyre or do stoppies? If so, you have sufficient brakes and upgrading them won't do much for braking performance... As mentioned, it's ultimately front tyre's maximum-grip that determines braking deceleration.
Unless you race, and then heat becomes concern. I have 2008 & 2009 Ninja 250s, one is street-bike all stock and other's race-bike. Rode street-bike & commuted for over year and braking never lacked. However, I took it to track one day to compare to race-bike and then it showed where upgrades can help.
First was non-linear action of factory pads. Initial braking was very strong, but squeezing harder on levers didn't increase braking deceleration linearly. Next was heat-soak with maximum-braking turn after turn (about 5 full-on braking efforts every minute from +80 mph). The pads faded and braking-distances increased more and more requiring ever harder-squeezes on lever.
My race-bike's 100th braking effort is exactly same as 1st and never overheads. It has in front:
- stainless line
- Galfer floating rotor
- Galfer G1380 HH sintered pads
So far after 2.5-years on track (30 races & 90+ trackdays), Galfer pads finally wore out while rotor remains completely unworn! Not sure how this is possible, I can't feel ridge on edge anywhere! Bizzare...
Anyway, I put same Galfer G1380 pads on my street bike in case I ever take it to track again. Street performance has been exact same as with factory pads.
Last edited by DannoXYZ; 7-14-2019 at 9:23 PM.