This comes from ESPN...
The International Cycling Union will examine so-called "mechanical
doping" at a meeting next week with bike manufacturers.

UCI president Pat McQuaid said Wednesday he did not believe rumors sweeping the sport that racers were cheating by getting extra power from
battery-powered motors hidden in their bike frames.

"We have no belief at the moment that it's actually a fact," McQuaid told The Associated Press in a telephone interview.

But he said the subject is on the agenda of a routine meeting between the UCI and industry representatives next Monday.

"We want to make sure that, as batteries on bikes progress, the UCI is in a position to monitor completely any usage there might be in an unfair way," McQuaid said.

Read more here...

Here is a story from VeloNation....

Second VeloNation story debunking the accusations of "motorized doping."