Spring type: Solo air spring

You can find them here

CN clearance specification is best for looser press-fit bearing bores

Hand sized sponge with microfibre surface

Shimano XT FC-M8150 Steps eBike Crank Arm Set - Shimano Steps - 165mm - Black - No Spider - No Chainring - Pair PDP|PLP|Rail Material Spring type: Solo air springDesigned for the rigors of E MTB riding, the SHIMANO DEORE XT FC M8150 crankset integrates cleanly and eliminates the need for spacers. Employing SHIMANO's HOLLOWTECH technology, the FC M8150 crank delivers optimal power transfer while reducing weight. Specifications New dedicated e bike cranks integrate more cleanly with SHIMANO DEORE XT logo 24 mm bottom bracket spindle