The CR3 features a cartridge-type master, which improves power and modulation, plus it is super simple to service: The self-enclosed unit threads directly into the lever body. I took apart our test set and had it back together and bled in 10 minutes with no special tools. Like Formula’s RO brakes, the caliper pistons are actually oval, making more surface area–and thus, more power–than round pistons, but simpler than a four-piston system. The CR3 is best suited for aggressive trail riding.