GEMFAN 1610-2 UDL 40mm 2-Blade Prop – 4 Pairs (1mm / 1.5mm Shaft)

Gemfan 1610-2 40mm – UDL Spec 2-Blade Racing Prop (4 Pairs)

Chosen as the official spec prop for the Underground Drone League (UDL), the Gemfan 1610-2 is built for serious competitors chasing victory in the underground whoop racing scene. Precision-tuned for 75mm builds running 0802 motors, this lightweight 2-blade delivers a nimble feel, razor-sharp cornering, and the raw efficiency needed to dominate tight technical tracks.

Whether you're chasing milliseconds or tuning your whoop for spec class compliance, this is the only prop that’s legal for UDL spec—and it performs like it.

• UDL-Spec compliant: the only prop allowed in official UDL spec races
• Two-blade design for optimal yaw response and reduced prop wash
• Compatible with 1.0mm and 1.5mm press-fit shafts
• Perfect match for 0802 motors and 75mm frames
• 4 CW + 4 CCW props per pack (4 pairs total)

Note: Make sure to select the correct shaft size (1.0mm or 1.5mm) based on your motor.