I've been running old school Louise FRs, 2003 vintage, the ones with the raised reservoir and a cap with a single bolt, for a few years. They've been on my singlespeed and were developing a problem with a master cylinder. The problem was that if you pressed the lever slowly, it would compress all the way until it hit the handlebar, without engaging the caliper what-so-ever. I was building up a bike for my girlfriend and re-designated those brakes for her build. I figured I better fix the issue. I contacted Magura asking if there was a way to fix this. Matt, at Magura, got back to me right away, offering a replacement. I said sure, and figured it was already great customer service, given the age of the brake. He soon replied that these were out of stock and offered to send me a new master cylinder. He was concerned that the brakes would not match and offered me a smoking deal on the matching master cylinder. I got these yesterday and mounted them up. I actually got a bit selfish and put the 07 master cylinders on my bike and put mine on GF's, but hey.
I weighted the BATs and they were 120g on the Ultimate scale, so not the most accurate measurement. The old ones, with fluid purged, came in the same. The lever blade looks unchanged. Kudos for QC as there was residual Magura blood in the master cylinder, I'm guessing, from having been tested.
The bite adjustment works great. You can set your brakes to engage either super quick or pretty late, the range is good. Another improvement is removal of any type of looseness on the lever. No more lever rattle like on the previous model. The reservoir looks bigger. The brakes seem a bit stronger, too, as if more fluid is being pushed when you engage the lever. All this from a quick spin around the block. I'm about to make the most out of our 73 degree day and go for a long ride.
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