Best Bike Bag With Shoulder StrapUnless you ride with light gear, you likely need a way to carry a spare tube, a carbon-dioxide inflator or pump and a multitool.bike bag with shoulder strap Rather than stuffing your jersey pockets or slinging a messenger bag, consider one of these handlebar- or frame-mounted bags. We've tested 19 of these to find the best for riders ranging from casual commuters to hard-core bikepackers.A good handlebar bag should be small, sleek and unobtrusive.bike bag with shoulder strap It should hold the essentials, such as a tire-repair kit, a phone, a...