Having never ridden in a group, I've never known quite how much benefit it gives you? Would it really up your average speed from 25 to 30-35km an hour over that distance?
Yes.
If you can sit on 30kph on the flat then sitting at 40 in a bunch is easy.
@beseku started
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Having never ridden in a group, I've never known quite how much benefit it gives you? Would it really up your average speed from 25 to 30-35km an hour over that distance?