I have a pair of these bad boys Hope Tech 3 E4 and recently the front has started sticking on, a lot. It got to the point that I am pedalling down hills so I thought I should do something about it, it also feels like the rear is starting to do the same now.
To me it just seems like the pistons won’t retract, and slowly the brake stats to rub, building up to it being almost totally clamped on.
What do we think the cause of it might be? The brake itself feels really good when pulled, not spongy or stiff or anything. I’ve had the pads out, pistons pushed almost out and lubed them up with a silicon based lube (as other posts suggest on this problem) however no joy, well it helps for a ride or two I guess.
Other posts (for older Hope brakes) were suggesting replacing the seals and pistons but I can’t seem to find any for this model for sale.