Photo taken by Tejvan Pettinger and shared on Flickr

1. White Shorts
    In a competitive event like Tour de France for example, wearing white shorts can be a social embarrassment. How so? Well, according to cyclingweekly.co.uk, white lycra is see-through. Imagine if it rains and the water seeps down all the way down to your, ahem, bum. Everyone behind you can pretty much see what colour is your brief, or God forbid, if you go commando.

2. Compression clothing
    cyclingweekly.co.uk makes a pretty good argument against wearing compression clothing such as knee-high socks. You wanna show off your tanned and bulging calves to other competitors (so maybe they'll be distracted and get lost behind), so why the hell should you wear a pair of knee-high compression socks? Enough said.

3. Sleeveless Jerseys
    On the other hand, cycling.co.uk says the opposite will happen when you wear sleeveless jerseys on a competitive run. Apparently, showing off bulging biceps will only make the other cyclists sneer at you, and they probably make sarcastic remarks when you get left behind because of a traffic stop.

4. Arm Warmers vs Leg Warmers
    cycling.co.uk says it's okay to wear arm warmers to protect your arms from the wind, particularly if it's cold. But since your legs is doing most of the heavy lifting, or rather cycling, it seems rather ridiculous to wear leg warmers as your legs will be warmed up from all that speed cycling.

5. High-vis Clothing
    Finally, it's okay to wear high-vis jackets if you're riding in the dark, but during daylight, it doesn't seem as practical. cycling.co.uk says that apparently having on such clothing doesn't go well with tanned skin and bulging muscle.