Robin Williams Eclectic Collection Of Bikes Up For Auction

SAN FRANCISCO (CBS SF) – The late Robin Williams was not only a comedic genius, he apparently was also a collector of unique bicycles.

Williams owned nearly 100 bikes and 87 of them are now gone up for auction with the proceeds going to two of his favorite charities -- Challenged Athletes Foundation and Christopher & Dana Reeve Foundation.

On the auction site the Williams family has posted a note saying: "We hope these bikes will bring their new owners much joy as riding them, as helping these causes always brought to him."

The bikes range from a $5,600 cycle made by famed Italian framemaker and Williams friend Dario Pegoretti -- there are currently 18 bids for the rare bike -- to a $950 Schwinn unicycle.

Among the most popular items so far is a Schwinn Chopper Hog Roadster priced at $2,000 that has 31 bids, a motorized Derringer priced at $3,841 that has 21 bids and a Velotron Training Bike with a pricetag of $1,6000 that has 22 bids.

Williams love affair with professional bicycling racing is also present in the collection which is housed at a San Francisco warehouse.

There's a Pinarello similar to the bikes used by pro racing juggernaut Team Sky and a Trek Madone from the days Lance Armstrong rode with the Discovery Team.

The Williams auction runs through October 25.

Auction site Paddle8 co-founder Alexander Gilkes told the Wall Street Journal the collection was "near and dear" to his heart.

"You're buying into an extraordinary comedy and Hollywood legacy, and supporting two great causes," he told the paper.