Unlike a dirt bike, the new Monarch Plus has no rpm limiter. Combining the Monarch's unmatched low weight with a brand new Solo Air system and a Vivid Air-style damping design, the Monarch Plus flies over all-mountain trails as if it was born for downhill riding. In other words, it takes a lot of power to stop this freight train. Therefore, it may be time to look for four-piston calipers.