Road Bike Components Shimano

Are Shimano Sora road bike components any good.?
A guy at a bike shop told me I would have to throw them away in about a year.
Depends on what you mean by “good”. There certainly are “better” Shimano groups (105, Ultegra, and Dura Ace, in order of increasing quality) — these groups are lighter, better performing, and more $$$$.
If you don’t ride your bike often (< 15 miles/week) and are budget conscious, Sora will probably be good enough for your needs. Keep in mind that the frame that comes with Sora-equipped bikes aren't really going to be highest performance frames either. In terms of serviceability, I'm sure that Sora will probably be workable by any bike shop...they'll just be thankful they aren't working on a dept. store bike.
As to whether you'll need to throw them away in a year, that all depends on how much you ride and how well you take care of it. Also, if you start riding a lot, you may find yourself eyeing better components (and a better bike) anyway.
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