It depends what results they hope for. If they want a high-gloss finish with ultimate shine, they will use an Illuminating Treatment Spray infused with Crystal Light Technology; if they need instant repair and increased strength, after cleaning they will use a Reconstruction Mask with Kera-Panthenol Complex. However, if a chemical to connect the body and mind of the rider to the bike is needed, an application of Brazilian Orange, Saffron and Cedarwood to one, and of Cardamom, Orange Blossom and Vanilla to the other, may be effective. Long distance and endurance competitors would doubtless do better with applications of Far Away or Far Away Infinity ...
And if you want to be seen and heard (in traffic I presume) there are special applications for that, too.
Or at least that's what a brochure I'm perusing, advises ...