Question for Cannondale Carbon Syanpse Owners

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I have been using Dawn to wash/wipe down the bike.

I wipe with just a moist cloth or paper towel, wipe the chain with a cloth and some bike-specific oil. I take it to the spa (aka, the LBS) once per year, to get a "deluxe tune up": they take the drive train apart, clean the bike, inspect everything.