Multiple times I have purchased ## x 3.0 tubes from online sellers who specifically listed them tubes as ## x 3.0 , only to receive them and they were just ## x 2.125 tubes. When I call them on it, they tell me 'oh they will work for the 3.0 tires' . They might work for the 3.0 tires, but had I known they were just going to send me 2.125 tubes, I wouldn't have bothered ordered them. What really torques me is that they charge a premium for supposedly 3.0 tubes over the regular 2.125 price. If they are going to offer 2.125 tubes for use in 3.0 applications, they should mention that in their listings.
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