X-Fusion HiLo SLS seatpost review

X-Fusion's first dropper post with internal cable routing

Our rating 
2.5 out of 5 star rating 2.5
GBP £320.00 RRP | AUD $389.00 | USD $290.00
X-Fusion HiLo SLS seatpost

Our review

A smooth operating and reliable internally routed dropper post – but expensive
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The HiLo SLS (known as the Strate outside of the UK) is the first X-Fusion post to offer internal cable routing.

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It also has an improved clamp design that holds the saddle far more securely than on older models – we had no issues with creaking or slippage during testing.

The bar-mounted lever is an old design though, similar to that used on the original Maverick Speedball post from 2006. Though it works reasonably well, it’s prone to cable stretch and needs regular tweaking to ensure good operation. The upside is the lack of a hydraulic remote to damage in a crash.

The post has a smooth action – certainly as good as the benchmark RockShox Reverb – and a sensible (non-adjustable) rebound speed. Lateral play was minimal from the off and hasn’t increased.

The 150mm drop on this version makes a surprising difference if you’re used to a 125mm post, though you’ll need 220mm from seat clamp to saddle rail to make full use of it.

Despite the great action, it’s difficult to overlook the retail price of this post – it’s only slightly cheaper than the market leading Reverb Stealth.

  • Prices for 125mm drop version: £300 / US$270 / AU$369
  • Prices for 150mm drop version (as reviewed): £320 / US$290 / AU$389
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This article was originally published in Mountain Biking UK magazine, available on Apple Newsstand and Zinio.

Product Specifications


Name HiLo SLS seatpost (15)
Brand X-Fusion

Description Internal cable routing