it's pure rubbish...i don't believe it at all...i know lots of guys who ride bicycles and have kids without any problem

Any further research on this point...?

guys this topic really makes sense-
scientifically speaking the narrow seat of a bicycle and upon that the lower handle of those cycles which used to race are a disaster, the riding position directly applies pressure on root of penis which takes most of the pressure hence lowering the blood circulation.
its almost same with crouch rockets- sports bikes, but they have better support compared to the above mentioned bicycles.
coming to question-"Does it affect everyone???"
many factors need to taken to consideration
1.duration of each ride
2.total numbers of years one is been riding
3. type of riding- constant riding or with frequent breaks
4.seating position, adequate cushion etc.
over all when we talk about biking its only sports bikes which pose minor risk, thanks to hard seat and riding position. cruisers and street bikes are at even lower risk or no risk at all
again it is finally just a RISK FACTOR
like not every one who smokes gets impotence or cancer- some die in early twenties some live not affected at all.

One Solution

Wikipedia page tells that there are Jockstrap for cyclist, Which are heat resistant.

Jockstrap - Wikipedia, the free encyclopedia

Can Bikers use this too??

no need to take such extreme measures as motorcycle seats are not that narrow as cycle and riding position is also not that extreme.

more importantly, we don't paddle our bikes like cyclists, so there is less chance of the blood vessel getting crushed or pinched.

relax.

I taught I should add one more biking gear

Very informative thread. I would like to add my own 2 cents to the piggy bank.

It has been shown that certain vibrations and oscillations, when in excess, tend to decrease instantaneous sperm count significantly inside the body and increase them proportionately outside the body and\or perhaps inside another body.

Theoretically, if you have a long enough sack and if you wear boxers, there is a probability that you could sit on one or both of your balls when they flop around while riding the bike on uneven surfaces. When you brake hard, due to the inertial momentum, it could also hit the tank and cause severe pain.

Just some friendly neighbourhood trolling.

Propoganda

How much of this is pure propoganda?
afterall, as someone pointed out earlier, looking at indian bike and human population, it hardly seems the case right?

I don't understand that part.

The world's favourite sport.