Dominion A4 Caliper

These are by far the best brakes I have used, but they are not perfect. Stopping power is on par with the best of them and the brake feel is amazing. I do have to agree with the review below, the bolts are unbelievably soft and mine are almost stripped. The brakes can also get unaligned pretty easily so I am constantly having to use the micro adjustments.

I’m a 300 pound rider on an Orbea Occam living in an area that’s moderately steep natural trails.

Not once have I felt I didn’t have enough power with the A4’s and the modulation works very well for me.

BUT the initial pin is very tight and the fasteners Hayes use are soft.

I’ve had to replace the lever housing after the compression nut cracked and broke inside the housing. Owned 1 month 3 rides.

The pad retaining pin/screw is very tight, so being the material is soft, the head became rounded.

I have not been able to find a retailer that sells that individual pin/screw and Hayes offers it nowhere on their site.

Their German affiliate is horrible for customer service.

How is this part not available considering it’s necessary to the part working??

I’ve tried social media with Hayes, Calling their German affiliate, writing Total bleed solution, eBay. The pin is only shown available when you buy a pair of A2’s which I have no need for.

Had the fasteners been better quality, customer service been better, part availability better, these would be a 5 star product hands down.

Great brakes, just be careful backing out pad pin 1st time.

Read the title.just need to be careful backing out the pad pin 1st time