Around here everyone gets along pretty well. If there is any descrimination I would say that it is from the wanna-be downhillers. You get some people that have the bikes and the clothes but not the talent. They enjoy laughing at us xc guys wearing our spandex and team kits. I find that most of the people that "can" ride respect all riders no matter what type riding they do. It is generally the newbies that descriminate.
I know it is childish but I do find it gratying to pass these "downhillers" wearing their full body armor on the downhills while riding my xc bike and spandex. Now keep in mind, I could not come close to passing the good downhill guys around here and I have the utmost respect for them. Those guys can ride!!!!
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I may be fat but I'm slow enough to make up for it.