PLEASE NOTE: 2026-04-16 We are back online.  
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Gearbox mainshaft gear, BSA M20 M B series 24-4231

Gearbox mainshaft gear, 20T x 16T, BSA, M, B SERIES, genuine NOS,to suit BSA M20, M21, B31, B32, B33, B34 etc
Original part number
24-4231 -  20/16 Tooth. To suit BSA M20, M21, B31, B32, B33, B34 etc

  • Stock Code: EM677
  • Shipping Weight: 450 grams
  • 1 Units in Stock
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$77.00 $69.30Save: 10% off

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PLEASE NOTE: 2026-04-16 We are back online.  
Australia Post have reversed the change when they killed the XML API interface that stopped postage quotes from working. The issue has been resolved.