Boyesen Supercooler Water Pump Kit Yamaha Yz250F 01-13 Blue Colour:Blue The new protective chest plate

The new protective chest plate provides enhanced ventilation for 2019

Powder Coated Finish - Super tough finish resists weathering and wear and tear

250-500 EXC-F 20-23

pairs of goggles plus several lenses and other spare parts

stretch panels

Boyesen Supercooler Water Pump Kit Yamaha Yz250F 01-13 Blue Colour:Blue The new protective chest plateReduced to its common reasons for being essential in an internal combustion engine, cooling system efficiency can have a dramatic influence on the longevity of the internal working components of your bike's engine. These include the reduction of thermal stresses and strains caused by pre ignition and detonation (particularly the latter), distorted cylinder bores, potential damage to pistons and rings, and damaged valve train components.