I have 3 E bikes and I weight in excess of 200lbs so braking is very important to me. I like a great grabbing hard biting brake and my Dominion A4 that I just purchased provide MORE than enough. I have TRP brakes on my other Ebikes and will be changing them over to the Hayes in the very near future. The TRPs are good, but I just like the power and light touch of the Hayes a bit better. If ya like easy pull brakes with great power and bite, these are the brakes for you. I opted for the 220 rotors.

Really fantastic brakes. Stopping power is the best I've had -- and I've tried Hope E3 (2nd best), Magura MT7 (could never get them to work consistently and lever is terrible), Shimano SLX (pretty good power, probably the best lever feel, but kept blowing seals), SRAM Code (just awful). Bleeding is pretty easy. Lever feel is fantastic.

Great stopping power, slight issues with rubbing
Can someone tell me what the different pads u get are ?

I recently purchased a pair of Hayes dominion A4s. Not only do these brakes look amazing, they feel INCREDIBLE! I just gave them a beating at my local DH bike park and with over 30 miles of downhill and some of the gnarliest tech in my area, these brakes were more than up for the job. Not once did they fade or lose any sort of power whatsoever. The amount of power that these brakes yield is undeniably amazing (I have been using the stock semi metallic pads and metallic pads are only going to make them more powerful), and with the lightest lever pull out there, you cant go wrong. The modulation on these things is awesome and I can demand as much power as I need all without skidding the back tire everywhere. The light lever action significantly reduces arm pump and allows you to ride harder for a longer period of time. Instillation process was as easy as any other brake and bleeding wasn't bad at all. I got my brakes to feel exactly how I wanted them with ease, and first try, no extra steps or fiddling around required like other brands out there. And with the use of DOT fluid these things will go strong for time and time again without needed bled unlike mineral oil brakes that usually require a full flush after a month of hard riding. These brakes bite the exact same way every time with no wandering bitepoint .Overall for the power, feel, look, and price, these are the BEST brakes on the market by far!!! Cannot recommend these brakes enough.

These brakes are absolutely amazing up to this point. Just did over 1000miles of heavy downhill on a ebike. Haven’t heard any sounds or anything. I have felt maybe a little bit of less braking power after a very long run. (Only rear due to excessive use) I’ve had xtr 2020, mt7 2021, rsc for context… these are way more comfortable and on another level of power if compared to the RSC. I can even say that if you test these a few days it will be just hell to go back to the rsc. It’s that much more control hence speed.