Multi-tools live in jersey pockets and saddle bags until something goes wrong mid-ride, which means they need to cover the basics without weighing you down or taking up space you'd rather use for food. The Park Tool MTC-20 packs 14 functions into a compact folding design, handling the hex sizes and Torx fittings that hold modern bikes together. It's the kind of tool you throw in your bag and forget about until a bottle cage bolt loosens up or your saddle needs adjusting 40 miles from home.

The hex key range runs from 2mm through 8mm, which covers stem bolts, brake caliper mounts, seatpost clamps, and crankarm pinch bolts. Torx T10 and T25 handle disc brake rotor bolts and the occasional derailleur limit screw. A flathead screwdriver and a knife blade round out the toolkit for those situations where you need to pry something loose or cut through a stuck strap. Park Tool also includes a bottle opener, because sometimes the most important repair happens after the ride.

The stainless steel frame keeps everything together with enough tension that tools stay folded rather than flopping around in your pocket. Individual tools extend from both ends, so you can access the size you need without playing accordion with the entire stack. The whole package weighs 167 grams—light enough to carry on every ride without a second thought.... Read More