The ultra-compact and lightweight bicycle tool with two 4-fold bits and three tyre levers. Four different screw profiles can be operated with just one bit. Significant weight saving of over 50 %. The enormous space saving makes the Bicycle Set 15 very suitable for mobile use. The functionality of the large profiles is made possible by the spring-loaded small drives. The bit has a 1/4" hex drive (Wera connection series 1) and can therefore also be used with e.g. bit ratchets and bit hand holders with Rapidaptor. The tyre lever 9504 has a 1/4" receptacle for use with a 1/4" bit. If both tyre levers 9504 are placed on top of each other, a 4-in-1 bit can be used to create a screwing tool. The tyre lever 9505 is also a valve extractor and deaerator. Tyre levers and 4-in-1 bits can be plugged together so that everything is compact and cannot be lost.