Rex 902 Race Day Spray Chain Coating, 85 ml

SAVE WATTS AND BE FASTER – ALL THE WAY TO THE FINISH LINE

Rex Race Day Spray is an unique hydrophobic chain coating for bicycle chain and cassette.

BECAUSE A CLEAN DRIVETRAIN IS AN EFFICIENT DRIVETRAIN
UNMATCHED DIRT REPELLENCY WITH UNIQUE HYDROPHOBIC PERFLUOROCARBON PTFE FORMULA.

Rex Race Day Spray is a unique product for treating your chain and cassette by yourself, for extremely low friction and maximal dirt repellency.

Rex is an expert in fluorocarbon coatings and we have decades worth of expertise in manufacturing products for cross-country race skiing. Now, we are the first in the world to bring the same technology into cycling. Together with our Domestique Chain Lube, Race Day Spray forms a lubrication solution with unmatched longevity and dirt repellency.

The research and development for Race Day Spray was done together with the best athletes and world-known independent testing labs, to make sure the product meets Rex quality standards. Rex Race Day is manufactured at our factory in Hartola, Finland.

THE TOUGHER THE CONDITIONS, MORE YOU BENEFIT.
INDEPENDENT LAB TESTED AND PARIS-ROUBAIX PROVEN.

In tests conducted by Wheel Energy testing laboratories, Race Day Spray produced impressive results:

• Drivetrain noise and friction are lower from the beginning of application. (-1dB.) Drivetrain noise stayed -1dB lower during the 5h dyno test.
• A Race Day Spray -treated chain that had been ridden for 7 hours in “spring classics” weather, (dusty, wet gravel, asphalt), gained only 0,5 watts friction when measured post-race and appeared completely clean!
• Chains that are treated with competing optimisation solutions like UltraFast process, typically gain 2.07 W from pre-race to post-race, even in shorter races. ( As measured by Friction Facts in 2012 )
• Compared to a chain that has lost its lubrication in race, the advantage when using Rex Race Day Spray is three extra watts in finish line sprint.

Information brochure:

https://rex.fi/application/files/9715/8529/4686/Rex_Race_Day_Spray_A4_2020_EN.pdf