PBI Sprockets 1.31 Inch Offset 33 Spline 530 Transmission Sprocket for Harley Big Twin Sportster Buell

PBI Sprockets 1.31 Inch Offset 33 Spline 530 Transmission Sprocket for Harley Big Twin Sportster Buell

A proper transmission sprocket makes a real difference in how power flows from your engine to the rear wheel — and PBI Sprockets builds theirs to deliver exactly that. Expect smooth, confident engagement on every ride, with the kind of long-term durability that keeps you on the road instead of in the garage.

Key Features

• CNC-machined to exacting tolerances for consistent fit and reliable power transfer
• Case hardened for superior wear resistance under sustained high-load conditions
• Electroless nickel plated for corrosion resistance and enhanced lubricity across the chain interface
• Drilled and tapped to accept the late-model lock plate without modification
• Compatible with .530 pitch chain systems
• 24-tooth count provides a balanced ratio between low-end pull and highway cruising performance

Technical Specifications

• Tooth Count: 24
• Chain Pitch: .530
• Spline Count: 33
• Offset: 1.31 inches (measured from the face that rests against the main shaft bearing to the inside of the teeth)
• Material: 8620 chromoly steel, case hardened
• Finish: Electroless nickel plating
• Sprocket Type: Transmission (countershaft)

Fitment Notes

• 1986-1993 Big Twin models require an additional spacer, seal, and O-ring for proper installation — consult your factory service manual for the correct components before proceeding
• Offset measurement is taken from the face that rests against the main shaft bearing to the inside of the teeth
• Review the Fitment tab for the complete year and model breakdown
• 86-93 Big Twin models must use OEM #33344-94 (SPACER), OEM #12067A (SEAL), and OEM #11165 (O-RING)