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I do not agree with the tactics of the man who was attacking cyclists with a handsaw, but it should be mentioned that he has a long beef with mountain bikers riding in wilderness where MtB are banned. This is big problem in some of the California ecosystems.

Perhaps there needs to be some combination of opening more areas to bikers and better enforcement of the bans in other areas.

That Vandeman fellow is a real piece of work. The article includes a link to his webpage (http://home.pacbell.net/mjvande/overview), which is just a series of pictures and captions about how mountain bikers, roads and basically people in general are a threat to the environment and the planet. I guess it would be better in Vandeman's view if there were no people at all. Then nature would be completely unfettered and protected. (eye roll)

Though I'm all for keeping in mind the impact of activities on the environment, this guy is just completely overboard and out there. I've had someone carping on me on another website because I said that I didn't like getting stung by jellyfish. I didn't call for any violence or aggressive actions toward jellyfish. And yet he goes on and on as if the jellyfish can read forums and get their feelings hurt. There IS such a thing as going too far with the environmental crusade. These people just end up alienating many people who might be sympathetic to the "cause".

As for the hidden motor allegations, wouldn't you still need a sizable battery for the motor? A tiny battery that you could hide in the tubing would offer very little power. It wouldn't be worth the risk of getting caught to have such low power sources.

Granted, I'm not an electrical engineer but you're going to need a larger battery to move along a 150-lb. man and the 16-20-lb. bike.

In a game of inches, even a little advantage can make the difference.

In a game of inches, even a little advantage can make the difference.

But the disadvantage is you have to carry the weight of the battery for the whole race. There's a reason battery-powered vehicles are rare: they have really lousy power-to-weight properties. A small gasoline engine I would believe, but I can't imagine a battery would be a net positive in a race of any distance.

Let me offer my measured and well considered response to the moto-doping allegations:

OMFG, are you *kidding* me? Those claims are silly beyond silly, and are the product of extraordinarily lazy journalism. Talk to any bike engineer. It's ridiculous.

Unless the mechanism disengages, I would think that there would be a whole lotta drag from the electric assist when it's not on. Like racing with a Schmidt hub, with the additional drag of those planetary gears.

@MB, the claims are pretty careless, I feel a bit bad for Cancellara having to disprove them. But boy, are they FUN. There's something comparatively charming about mechanized doping (vs. the organic variety), sort of like the history of hidden fuel reservoirs and phantom traction control programs and such in auto racing over the years.

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