85lb @ 33.75mm, 179lb @ 22.75mm - SEADOO 1503/1630 Rotax 4-TEC. High Performance Valve Spring, Titanium retainer and Steel Spring seat to suit 232 series Kelford Racing Cams. Supplied spring seat fits on top of OEM seat to give 85lb at 33.75mm. Coil bind at 20.85mm. 10,000rpm Capable
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