Flats happen—to everyone, eventually—but having a mini pump and a spare tube on you can be the difference between a short delay and game over. That said, hand pumps are finicky. The Tattico Mini Pump from Silca fixes many common mini pump gripes (It's too big to carry! It doesn't pump enough air! Help! I just sheared off my valve stem!) with a super-compact inverted design with the hose and valve hidden inside an inner chamber. That means you get up to 10% more air per pump, reducing the time it takes to get you back on the road.

Adjustable rubber cup seals expand to reduce leaks as the pump heats up from use, while the lever-actuated chuck (with Presta, Schrader or Dunlop valves) is attached via flexible hose, so you won't accidentally decapitate your valve stem with a too-vigorous pump. Sweaty-palmed users love the knurled aluminum barrel for extra grip, and the compact size (and included frame mount) means you'll be the one on the group ride boasting, "Mini pump? Oh, you know I got that thing on me!" the next time someone gets a flat. Buy here.

You won't get very far with underinflated tires, and since you should ideally check your tire pressure before every ride, a floor pump is an essential tool for your kit. If you're simply looking to get out the door as quickly as possible, the JoeBlow Sport III from Topeak is a real workhorse, with an easy-to-read pressure gauge and a double-headed pump head that fits Presta, Schrader and Dunlop valves. It's "the tried-and-true pump that does everything you'd want," says Aaron Potvin, REI's assistant category merchandiser for cycle accessories. Buy here.

If, however, you're looking for a floor pump that's a joy to use and looks good enough to store in your living room, the Pista Plus Floor Pump from Silca blows away the competition. The lathe-turned ash handle feels sturdy and luxurious underhand, while the Italian leather cup seal and full metal piston assembly pumps air with great efficiency—perhaps a little too efficiently, given the pleasure you'll derive from using this pump. Bonus: It looks so sleek there's a good chance you'll be able to pass the Silca down to your grandkids, so take that into consideration when comparing price tags. Buy here.

Get used to riding buddies asking to borrow your crankbrothers F19 Multi-Tool, because this sleek little gadget has just about everything you need to earn a reputation as the mid-ride fix-it hero. The pocket-size companion comes with hex wrenches ranging from size 2 to 8, four screwdrivers, a Torx T10 and T25, four sizes of spoke wrenches and a chain tool—all wrapped up in in a slim magnetic sleeve that doubles as a handle extension. You may even find yourself reaching for the F19 for quick fixes at home, too. "Good compromise between space, and having the right tool. Great for on the road but utilize full size tools when at home," wrote one customer reviewer. Buy here.

A GPS bike computer gives you the freedom to explore without worrying that a wrong turn will lead to an unplanned all-day adventure. So, whether you like to navigate on the fly or prefer plotting out turn-by-turn directions, the Wahoo Fitness ELEMNT ROAM GPS Cycling Computer will help guide you home. A high-contrast color display and 2.7-inch screen make it easy to page through≠ all your vital stats like speed, distance, lap time, heart rate, elevation and more. And it's compatible with several smart trainers and many data-tracking apps, too, including mountain bike trail integrations. "The user interface on the phone app is intuitive, easy to use and just works really well," says Kevin Lau, a retail specialist at the REI store in Marlton, New Jersey. With 17 hours of battery life tucked into one easy-to-use device, you may find this bike computer a highly capable stand-in for your map-savvy riding buddy—except the ROAM won't share its snacks with you, no matter how nicely you ask. Buy here.

If you prefer the all-in-one convenience of having both maps and apps at your fingertips, the Squeeze Rotating Smartphone Bar Mount from Nite Ize is a secure way to mount your phone out front for on-the-go communication. A sturdy rubber strap attaches to your bike handlebars (or to jogging strollers, wheelchairs or even grocery carts) quickly and easily, while continuous-force springs actuated by "squeeze arms" securely hold your phone in either landscape or portrait mode. "It's easy to pop your phone into the mount," says Lau, the REI retail specialist. "It works really well and is great for commuters." We like this mount because it holds gadgets from 2.3 to 3.6 inches wide (which includes most phones), though some users reported experiencing trouble fitting phones with thicker cases. The tool-free mount system is sturdy enough to handle even bumpy off-road rides and the exploits of curb-hoppers. Buy here.

Don't skip buying a lock just because your budget is tight. While locks under $100 won't offer the same security as their more expensive cousins, you can still get one, like the Sold Secure Silver-rated Kryptonite Evolution Lite Mini-6 U-lock, that's suitable for short stops and lower-theft environments.

"There's an old saying when it comes to bike locks," says REI employee Jeff Schmidt. "High security, light weight, low price—pick two." Striking a balance between these three incompatible ideals, the Mini-6 weighs a surprisingly light 1 pound, 9.5 ounces while still earning a "high security" rating of 7 out of 10 on Kryptonite's scale. Such a lock might not last long in New York, but it's a great option for longer stops in other metropolitan areas and suburbs where thefts tend to be less frequent.

To keep the weight down without entirely sacrificing strength, the Mini-6 uses an 11-millimeter-thick shackle made from the same hardened steel used in the brawny New York 1210 chain lock. Plus, the bent-foot, double-bolting mechanism holds the shackle on both ends while still featuring the familiar, easy-to-use angled closure of other Kryptonite U-locks.

Another reason this lock is so light is that it's small, measuring just 6 inches by 2.75 inches. While this could make securing your bike a challenge if you can't find a suitable bike rack, there's not much room for a thief's leverage tool to work. And a smaller, lighter lock is easier to carry, so there's no reason not to toss the Evolution Lite Mini-6 in your bag.

Few things are worse when you’re in the saddle than reaching for a refreshing drink and being jolted instead by a mouthful of warm, moldy-tasty water from your bottle. Banish those days forever with the Bivo Trio Insulated Water Bottle. The Trio’s double-wall design keeps water cold even on daylong rides. And the lingering funk of electrolyte drinks doesn’t stand a chance of sticking around with Trio’s dishwasher-safe stainless steel. Nor does that material impart any metallic taste.

An ex-NASA engineer designed the bottle’s patented high-flow sport nozzle so liquids flow easy without needing to squeeze this bottle. Colored versions of the Trio, meanwhile, feature a silicone nonslip grip so this bottle never slides from your grasp while you’re in the paceline.

It’s not as light as plastic bike bottles you'll own, and the price, too, is a bit high for a water bottle. When you consider how many plastic bottles you’ve had to toss because of their unsalvageable ick, though, it’s a fairly-priced upgrade, says one of our gear editors. Adds a customer-reviewer: "Once you give one of these bottles a try there is simply no going back to your traditional plastic water bottle." The bottle is also available in a non-insulated version, the Trio One, at a slightly lower price. Buy here.

Call us simple, but we prefer lightweight, durable and no-frills when it comes to water bottle cages. This affordable one from Planet Bike is made of rugged 6061 aluminum and gets the job done. Choose from several colors to coordinate with your ride. Of course, you can pay a lot more (say, for fun designs like the Lucky Cat from Portland Design Works or for one made of carbon) but we think this water bottle cage works for most riders. Buy here.

If you're committed to getting out there on two wheels no matter the weather—or just have a knack for getting caught in the rain—a set of fenders can really save your rear, as well as the face of the rider behind you. A set of Full Metal Fenders from Portland Design Works provides coverage to help keep both you and your bike cleaner and drier. One REI staffer uses his set on a gravel bike in winter, and raves that they're easy to install, stay in position and "will hold up in nasty conditions." Best suited for gravel and road bikes with tires up to 35 millimeters wide, the fenders' full-wrap design and extra-long rubber mud flaps shed muck effortlessly, while safety release tabs mean that built-up debris between the tire and the fender won't bring you to a screeching halt. The installation is straightforward, and the kit includes the hardware you need to mount these to most frames. Buy here.