





Park Tool LRT-1.2
The Park Tool LRT-1.2 is a machined lockring tool for Bosch Generation 2 and DJI Avinox mid-drive motor chainrings with 50 mm diameter and 8 notches. E-bike mechanics use it to remove and install direct-mount chainrings on pedal-assist motors.
- Precisely machined for a perfect fit, the LRT-1.2 removes and installs the front chainring lockrings found on DJI® Avinox & Bosch® Gen 2 e-bike motors once the crank arm is removed. Integrated 3/8" drive fitting allows compatibility with most ratchet handles and torque wrenches for tightening to proper torque specifications, and the heat-treated and plated 4140 steel construction ensures durability and long life
- Fits lockrings with 50 mm outside diameter and 8 notches including:
- Bosch® Generation 2 Active Line (chainrings less than 20 teeth)
- Bosch® Generation 2 Performance Line
- Bosch® Generation 2 Performance Line CX
- DJI® Avinox
Pairs well with

Park Tool LRT-1.2
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