SUPERTECH MINI R56 Beehive Valve Spring Kit

£599.99 incl VAT £499.99 ex VAT
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Supertech beehive valve spring kit for the Mini Cooper S R56 / R57 / R58 / R59 N14 / N18 Prince platform. Beehive design reduces reciprocating mass for aggressive cam profiles on built JCW W11 heads.

Stock & dispatch: check the live stock status shown above. UK in-stock items dispatch next working day on orders placed before 2pm. Drop-ship, special-order and made-to-order items have variable lead times — please contact our team on 01621 473023 or [email protected] for accurate timing before ordering.

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Description

  • OutSpr.ID: 16.80mm
  • OutSpr.OD: 23.30mm
  • InnSpr.OD: 18.80mm
  • InnSpr.ID: 12.30mm
  • Seat Pressure: 65 @33.60mm
  • Open Pressure: 163 @10mm
  • Max Lift: 11.40mm
  • Coil Bind: 22.20mm
  • Rate: 9.80mm
  • Kit spring: SPR-MC56BE
  • Kit spring qty: 16
  • Retainer: RET-MC56BE
  • Retainer qty: 16