kg, my tri shorts are amazingly comfortable. Granted, there isn't much by way of padding but they dry. Almost If you get a pair of tri shorts, go out riding in them to see how it is. Also remember that if you're doing a sprint tri, the bike portion is only 12 miles. It isn't that bad. Even if it DID hurt (and mine, at least, didn't), you will have nervous energy, you will be trying to dry off, and you won't feel a thing.