Defects always come as a surprise - and are always annoying. Whether it's an after-work ride, crossing the Alps or a marathon race: A mini-tool is part of the basic equipment. The following factors play a role: 1. features (number of functions), 2. handling, 3. quality and, in the case of racing cyclists, weight. If you want to be on the safe side, you should go for a fully equipped tool with at least 20 functions, such as the Lezyne Stainless 20 shown here. In addition to the standard hexagon socket spanners from 2 to 8 millimetres, a screwdriver, T25 Torx and a chain tool are essential. If you ride parts on your bike that require special spanners, you should pay particular attention to your equipment. A Mavic spoke spanner or a T10 Torx for Formula brakes is not part of the standard equipment of a normal tool. When it comes to handling, you should make sure that all existing spanners and chain riveters can be used properly. What use is a 5 mm Allen key if it is too short to reach the chainring bolts?
Using the Lezyne Stainless 20 as an example, we show you the most important functions of a mini tool:
Allen key + screwdriver
Allen keys from 2 to 10 mm cover all common areas on the bike. A 2 mm L spanner is an advantage for adjusting the brake lever. Screwdrivers are used to adjust the gears.
Ring spanner + tyre lever
A solid tyre lever is a must. Preferably made of plastic. Open-end/ring spanners are needed less and less.
Knives
A pointed knife with a serrated blade can be used universally. Ideally with a locking device.
Chain pusher + nipple tensioner
The chain tool should sit comfortably in the hand and have a good lever. The removable spoke spanner (also for Mavic) is integrated in it.
Torx + bottle opener
A T25 Torx is essential for tightening the brake discs and, for example, the brake levers on Avid brakes. However, a mini-tool is only really complete with a bottle opener.
