There's the thing too. When I toured from Tampa to NYC I *did* bring my TransAlp, lashed to the top of the Bob. Worked great as a bladder, daypack, etc.
So I'll amend: CamelBak's are great, just not on yr back. = )
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Villin custom touring | Raleigh XXIX | Medici Pro Pista | 1978 Schwinn Stingray