All the bells and whistles available on modern bicycles can make working on them seem rather daunting. But the reality is that you can do a lot of adjustments and fixes yourself if you have the proper tools — and you don’t need to strap some massive toolkit to your bike, either. The Crankbrothers M5, on sale at Amazon right now for just 11 bucks, has many of them covered.
Granted, you won’t be able to fix a flat or replace a chain with this gadget, but the included Philips #2 screwdriver and #3, 4, 5 and 6 hex wrenches are all you need to change your seat height, adjust your brakes, tighten up your headset, attach bells and lights or add a bottle cage. Plus, it weighs less than 3 ounces, making it easy to slip in your pocket or bike bag and forget all about it till someone on your ride has a hangup and you get to play hero.
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