The MIP 17.5 Eco All-in-1 Topshaft works with the original 3-gear rear motor, 4-gear mid motor, 4-gear V2 mid motor, 3 gear mid motor, and the MIP Box. The contact surface is 30% narrower than normal, equating to less overall drag/contact patch on the idler gear. It is also the lightest on the market today coming in at a light 3.8 grams.
Click here for more info –
