The increased power transmitted via an E-bike motor is the ultimate test for chainring durability. Hope therefore developed Direct mount chainrings that are specifically designed to withstand the additional rigours of E-Bike use.Directly mounts to motor and replaces the full spider assembly for a lighter and cleaner looking set- upDesigned to give 52mm chainline to suit 148 Boost framesDesigned to withstand the demands of E-Bike useNarrow/wide tooth profile designed to retain the chain without the need of a chain deviceCNC machined in 1 piece from billetBosch motor compatible