I did as ultimately the stock ones failed on one brake of each set of the two SLX's I had. Result: No good. Pistons were undersized and under slow/feathering pulls, they could rock enough in the bore to break seal, causing the lever to go to the bar. MC blowby in brake speak. Damn scary, even on a blue. These were the Risk branded units, and that only seems 125% appropriate for a name. Ended up hitting up the local non-profit, finding a set of non-series brakes with servo wave, and poached the MC pistons from them. Those were AL units as opposed to the plastic jobs stock in the SLX. Rebuilt and gave to a pal and he's been on em for 2 odd years now without issue. The other set I took to a bandsaw to get an understanding of the port hole locations between the res and MC bore. Those cutaways now live with a set of Tektro and Sram cutaways at the same non-profit, as training tools for new mechs and volunteers to understand why a company states to bleed their brakes a certain way
March 28, 2024, 8:51 a.m. - JT
I did as ultimately the stock ones failed on one brake of each set of the two SLX's I had. Result: No good. Pistons were undersized and under slow/feathering pulls, they could rock enough in the bore to break seal, causing the lever to go to the bar. MC blowby in brake speak. Damn scary, even on a blue. These were the Risk branded units, and that only seems 125% appropriate for a name. Ended up hitting up the local non-profit, finding a set of non-series brakes with servo wave, and poached the MC pistons from them. Those were AL units as opposed to the plastic jobs stock in the SLX. Rebuilt and gave to a pal and he's been on em for 2 odd years now without issue. The other set I took to a bandsaw to get an understanding of the port hole locations between the res and MC bore. Those cutaways now live with a set of Tektro and Sram cutaways at the same non-profit, as training tools for new mechs and volunteers to understand why a company states to bleed their brakes a certain way