Good question. In all likely hood about three years, but there are a lot of factors. Like how much you are riding and shifting. They will need barrel adjustment after about three weeks of ridding. When I replace cables I like the premium polished stainless ones. I put fishing reel lube down the new premium housings. But I am picky and really notice. Nice hub. What is the motor? Are you going for a sprocket and chain or a belt-drive? I am liking wide, long life half-link chains on my internally geared hubs. Ceramic lube on them is very nice.
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