Bosch ebike chainring lock

Bosch E-Bike Chainring Lock Tool for e*thirteen Helix Race e*Spec 32T DESCRIPTION This is a 3D-printable tool designed to lock the e*thirteen Helix Race e*Spec 32T chainring on Bosch e-bike motors, making chain cleaning and lubrication much easier.On Bosch e-bikes, when you rotate the cranks backwards, the chain does not move, which makes proper chain maintenance difficult. By locking the chainring in place, this tool allows the cassette to rotate while the cranks stay fixed, so the chain advances over the cassette for effective cleaning and lubrication, without pedalling forward or removing any components.The model is designed for printing in PETG-HF, which offers good mechanical strength and higher temperature resistance, making it suitable for repeated workshop use. FEATURES- Compatible with: e*thirteen Helix Race e*Spec 32T chainring (Bosch motor e-bikes) - Function: Locks the chainring so the cassette can rotate and the chain can move during maintenance - Material recommended: PET