| Bike engines are designed to use antifreeze/water mixture as the coolant - simple as that. If you use straight water then you run the risk of corroding components in the coolant system, or even worse, cracking the block or radiator in winter - expensive !
The only reason you should use just water is for the reason already mentioned - scrutineering will not allow anything else. Antifreeze, or ethylene-glycol is a parafin based , oily compound which will cause grip problems if dumped on a race track. |