Originally Posted by
Bikernator
This is the second time I've seen those bulge-y things on the inner wheels (seen here as a goldish color). What are those?
The rims are cutout to save weight.
What you are seeing is a rim strip that is being slightly pressed out by the air in the tube.
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So long. Been nice knowing you BF.... to all the friends I've made here and in real life... its been great. But this place needs an enema.