For builders aiming to trim rotating mass, the XRAY 305933 Narrow Pinion Gear is made from aircraft-grade duralumin and measures 1.5mm thinner while being 25% lighter than standard pinions, giving a measurable edge in acceleration and efficiency.
Each pinion is produced on XRAY's specialised gear machines to ensure concentricity and minimal runout. These tight tolerances reduce drivetrain noise and help maintain consistent meshing under race conditions.
After machining, edges are chamfered and a durable hardcoat is applied to protect the gear profile. The treatment helps retain form and lowers wear, supporting smooth operation when matched with compatible spur gears.
The XRAY 305933 comes ready to install and works with a variety of 48 pitch spurs, making it a straightforward upgrade for racers and weekend hobbyists who want immediate gains without extra prep.
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