I have never owned an El Burro , but I have a buddy that has a couple. What I've witnessed is they have a pretty unique set up. You may be opening up a whole can of worms trying to switch that stuff. Most big bikes never did have good brakes. That's pretty much all I collect is big bikes. Other than my Terra Cat , most of them leave a lot to be desired. have you tried putting new pucks and the brake calipar ? As suggested I personally would try to fix what you have.:thumbsup: