Piper Valve Springs for Bmc B Series 18V Model Post 71 VSSB

BMC B SERIES 18V MODEL POST 71
BMC B SERIES PRE 71

Manufacturer: BMC
Rate N/mm: 42
Rate Lbf: 240
Seat Pressure Lbf: 80
Seat Pressure Kg: 36
Fitted Length mm: 38
Nominal Internal Diameter: 21.8
Nominal Outside Diameter: 30
Crush Height mm: 23.21
Spring Type: Single
Product Type: Valve Springs