Dominion A4 Brake Kit

I have the A4 model for a few months, I am satisfied with the purchase.

I have a doubt.

When I have to do maintenance, can I use any DOT 5.1 Fluid?

There are so many places I could start with the Dominion A4's, whether it would be the incredibly consistent, powerful bite point, the feathery lever stroke (which makes going back to a pair of SRAM/Shimano's feel redundant), or their unmatched modulation, but the truth is Hayes has made a product that stands out against all the other brands in my humble opinion. Not to mention, their customer support is next to none (try getting a new master cylinder shipped out to your door in 4 days (like I did from Hayes), from Shimano. Hint: it'll take more like 4 months... Shout out Matt K. !!)

I'll never look back at another brake set again. These have changed my riding exponentially. There's a reason Remy Metailler rides them, I suggest you find out for yourself, just like I did, you won't be disappointed.

Hayes FOR LIFE!

I love these brakes, I just bought another set so that I have them on both my mountain bikes.

I have tried to reserve judgement on these brakes for the past year but it is becoming increasingly difficult. Bite point wanders all over the map based on temp and how much I am using them. I can adjust reach but it still changes mid ride.

I can’t get a new set of pads to fit without rubbing from both sides. Originally I thought they were just bled wrong. But I just worked them over again and again(full bleed 3 steps) and the pistons will not stay back far enough to prevent constant rub.

Sure the dominions feel nice but my guide R’s just work and work consistently. Can somebody tell me what the LBS and me don’t understand about getting these set up properly?

I am very happy and impressed with these brakes! I had the stroker brakes many years ago and they didn't meet expectations so I wasn't in a hurry to get another pair of Hayes brakes especially since the modern line up from Sram & Shimano are real solid. Although I do like to try products that are less mainstream or your normal oem spec when they look worthwhile. So when I needed new brakes I was looking primarily towards magura. A couple people I trust strongly suggested these brakes so I went with the Dominion A4 instead. I didn't dig into the nitty gritty details and internal tech that makes these brakes special - but I was hearing that these brakes felt great, had plenty of power, and were very reliable and predictable. All of that was true! So far these are on track to be my favorite brakes to date. I usually ride a code or saint, both of which are nice and reliable. On this bike, these brakes are replacing a pair of TRP G-spec 4 pistons. The dominions are quieter, prettier, much stronger, and the lever feel (both shape and pull action) is WAY better. This is a top notch brake and I'd recommend them to anyone looking for a powerful 4-piston brake. I'm always happy to find a product that is top notch from a niche brand - especially when you're not paying boutique price. These are a win!