Drive arrangement for a bicycle

A drive arrangement for a bicycle comprising:

• a crank rotatable about a crank axis and having a crank mounting portion;
• a drive sprocket, comprising:
• a sprocket mounting portion attached to the crank mounting portion;
• a chain engaging portion, comprising:
• a plurality of thin teeth;
• a plurality of thick teeth, each of the plurality of thick teeth comprising:
• a load feature;
• a guiding tip disposed radially outward of the load feature;
• and
• a recess area bounded by:
• a line extending in a first radial direction from the crank axis through a radially outermost extent of the load feature;
• a circumference defined by a radial distance of a radially outermost extent of the guiding tip from the crank axis;
• and
• an outer profile of the guiding tip between the radially outermost extent of the load feature and the radially outermost extent of the guiding tip;
• and
• a chain configured to engage with the chain engaging portion of the drive sprocket, the chain comprising:
• a plurality of outer link plates;
• a plurality of rollers, each of the plurality of rollers disposed axially between a pair of the plurality of outer link plates relative to a roller axis;
• and
• a plurality of inner link plates disposed axially between the plurality of outer link plates and the plurality of rollers relative to the roller axis, wherein each of the plurality of inner link plates comprises:
• a load chamfer sized and shaped to extend beyond a corresponding one of the plurality of rollers beyond the load feature of the corresponding one of the plurality of thick teeth in a second radial direction relative to the roller axis during drivetrain engagement;
• and
• a clearance feature sized and shaped to allow the corresponding one of the plurality of rollers to align with or protrude past the clearance feature in a third radial direction of the load chamfer relative to the roller axis during drivetrain engagement.