It takes about a hour to two your first time. Buy some seals and bearings and waterproof, lithium grease. You will need a can of brake cleaner a side and a roll of papertowels a side. It takes a few tools, so have them ready to go. $250 is a bit pricey, but there is about $100 in parts and supplies. Worth it if you don't have the skills, tools, or time.
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