NT1 19T Performance Pulley Aluminium - XN1-41/RE by 3Racing  [XN1-41/RE]

Team XRAY NT1 Aluminum Pulley 19T - 3RACING XN1-41/RE
Price:
USD$8.20
Brand:
3Racing
Model:
XN1-41/RE
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19T CNC-style pulley for NT1 drivetrains

The XN1-41/RE is a 19T machined aluminium pulley intended as a direct replacement for NT1 belt-drive systems, retaining factory mounting geometry while improving dimensional stability and belt seating. It is sized to match standard NT1 shaft and hub interfaces for straightforward integration.

Installation follows conventional NT1 service procedures: remove the original pulley, locate this unit on the same shaft or hub position, secure with the specified retaining hardware, and verify belt runout and tension. No chassis modification should be necessary when installed to correct NT1 components; adhere to service manual torque figures.

Functionally this component is a setup and durability upgrade rather than a redesign: the machined aluminium construction offers improved stability under load and can reduce belt tracking variations that occur during repeated running and fine tuning.

What tolerances should I check on fitment?

Confirm shaft diameter, hub seat depth and axial location match the NT1 specification. Check for minimal axial play and acceptable runout before final torqueing.

Are bearings affected by swapping to aluminium?

Bearings are unchanged by the pulley material; inspect bearing condition and replace if end float or roughness is present to ensure optimal pulley performance.

Recommended checks after installation?

Verify belt tension and tracking, measure pulley runout, and perform a short test run on stands to confirm consistent engagement before track use.