Mortop DMS-43 direct mount stem review

Lightweight adjustable downhill stem

Our rating 
2.5 out of 5 star rating 2.5
GBP £69.98 RRP | AUD $130.87 | USD $114.07
Mortop DMS-43 direct mount stem

Our review

It's light and it looks good, but not exempt from criticism
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Mortop might not be a name you’ve heard before, but given that this adjustable downhill stem weighs just 150g, you may want to pay attention.

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An eccentric shim inside the bar clamp enables you to adjust the reach between 40mm and 43mm – or, if you prefer, the rise/drop by 3mm.

With no faceplate to remove, each side of the two-piece stem has to be slipped over the bar. This can cause problems if you have a bar with an extended central bulge. Once you’ve got the stem loosely in place, it’s a case of making sure the shims are positioned correctly before clamping the bolts up.

We had some issues with creaking during testing, but managed to quieten it down with a light coating of grease.

A fair amount of attention to detail has gone into the CNC machining of the stem, and it comes with a nicely machined combined headset spacer and top cap – a tidy touch to finish off your cockpit.

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 This article was originally published in Mountain Biking UK magazine, available on Apple Newsstand and Zinio.

Product Specifications

Product

Name DMS-43 direct mount stem (14)
Brand Mortop