Magene lockring tool

Adapter for the lockring in Magene bicycle cranks with power meters (e.g. P505) to Shimano Hollowtech II compatible tools ("BB44-16T", "TL-FC32", "BBT-9" ) .

(Some adapters that ship with the cranks are too large for standard Hollowtech II tools.)

This, made from PETG, worked fine with a tool that grabs the adapter in all 16 notches, no damage to the tool after torquing the ring.