The 2006 MY RM125 has received several tweaks for improved performance. This is one of Suzuki's highly-popular dirt racing machines, so it is natural that the house of Hamamatsu loads it with the best features and parts from the top shelf. The RM125 has a bigger piston ring knock pin, a narrower reed valve intake passage, a reshaped intake reed valve air guide, a narrower crankshaft, a new exhaust chamber shape and a revised ignition map.
The chassis is also new, including an updated swingarm and new, revisited braking system, with new rotors and brake pad material.