Additional Information RSSW HydroSpecificationsPart NumberSizeBoltPatternCenterboreLoadCapacityLugSeatStockPriceATS852HSB18x8.5 +355 x 4.5" (114.3mm)64.11764.00ConicalOut of Stock$392.47ATS952HSB19x8.5 +355 x 4.5" (114.3mm)64.11984.00ConicalIn Stock $440.85