Bosch EBike Pullers Lock Ring/Lock Ring – Classic

The Bosch e-bike system assembly drive tool or spider tool is used to loosen and tighten the lockring when mounting the chainring and is an original tool from Bosch in workshop quality and therefore 100% accurate fit.

To drive the lockring tool, a ratchet wrench with 1/2″ connection is required.

If you want to change the Bosch e-bike chainring or, for example, retrofit a lighting system, you need this spider tool for a professional disassembly and assembly work.

Note on the Bosch spider tool 0275009001:

• The Bosch locking ring tool has a 60 mm outer diameter and 56 mm inner diameter (clamping nose to clamping nose).
• The Bosch tool is for Bosch eBikes from 2010 to 2013 (partly until 2014) with Bosch Classic-Line or Classic+ drive system.

We also have the matching Bosch Classic-Line aluminum lock ring on offer.