https://www.chainreactioncycles.com/cn/en/brand-x-ascend-xl-dropper-seatpost-170-200mm-/rp-prod159172
Yeah, the only thing to complain about is that a Wolftooth lever is nearly as much the whole kit. They're also a piece of piss to service.
@Dogs started
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https://www.chainreactioncycles.com/cn/en/brand-x-ascend-xl-dropper-seatpost-170-200mm-/rp-prod159172