A transmission gear synchronizer comprising: a sliding sleeve having an inner surface defining a plurality of sleeve teeth extending radially inward from the inner surface of the sliding sleeve towards a transmission shaft, each sleeve tooth of the plurality of sleeve teeth having a tip, the tip defined by a first surface disposed at a first angle relative to a longitudinal axis of a transmission shaft and a second surface disposed at a second angle relative to the longitudinal axis of the transmission shaft; a hub having a plurality of hub gear teeth extending radially outward from a root diameter of the hub, the hub configured to be received within the sliding sleeve; and a blocker ring formed from a thermoplastic material and disposed adjacent the hub, the blocker ring having: a plurality of molded clutch teeth extending radially outward from a root diameter of the blocker ring, each molded clutch tooth of the plurality of molded clutch teeth having an end surface defined by a third surface disposed at a third angle relative to the longitudinal axis of the transmission shaft and a fourth surface disposed at a fourth angle relative to the longitudinal axis of the transmission shaft, the second surface is configured to engage the third surface during a transmission upshift event and the first surface is configured to engage the fourth surface of an adjacent molded clutch tooth of the blocker ring during a transmission downshift event, wherein the engagement of the second surface with the third surface defines a first contact area and the engagement of the first surface with the fourth surface of the adjacent molded clutch tooth of the blocker ring defines a second contact area, the first contact area substantially similar to the second contact area, and an inner surface defining a plurality of molded grooves extending axially along the inner surface of the blocker ring, each molded groove of the plurality of molded grooves is disposed substantially parallel to a longitudinal axis of the blocker ring. a sliding sleeve having an inner surface defining a plurality of sleeve teeth extending radially inward from the inner surface of the sliding sleeve towards a transmission shaft, each sleeve tooth of the plurality of sleeve teeth having a tip, the tip defined by a first surface disposed at a first angle relative to a longitudinal axis of a transmission shaft and a second surface disposed at a second angle relative to the longitudinal axis of the transmission shaft; a hub having a plurality of hub gear teeth extending radially outward from a root diameter of the hub, the hub configured to be received within the sliding sleeve; and a blocker ring formed from a thermoplastic material and disposed adjacent the hub, the blocker ring having: a plurality of molded clutch teeth extending radially outward from a root diameter of the blocker ring, each molded clutch tooth of the plurality of molded clutch teeth having an end surface defined by a third surface disposed at a third angle relative to the longitudinal axis of the transmission shaft and a fourth surface disposed at a fourth angle relative to the longitudinal axis of the transmission shaft, the second surface is configured to engage the third surface during a transmission upshift event and the first surface is configured to engage the fourth surface of an adjacent molded clutch tooth of the blocker ring during a transmission downshift event, wherein the engagement of the second surface with the third surface defines a first contact area and the engagement of the first surface with the fourth surface of the adjacent molded clutch tooth of the blocker ring defines a second contact area, the first contact area substantially similar to the second contact area, and an inner surface defining a plurality of molded grooves extending axially along the inner surface of the blocker ring, each molded groove of the plurality of molded grooves is disposed substantially parallel to a longitudinal axis of the blocker ring.