Syncros AM stem review

Affordable all-mountain option

Our rating 
3.0 out of 5 star rating 3.0
GBP £50.00 RRP | USD $60.00
Syncros AM stem

Our review

The Syncros AM is a solid, unpretentious and affordable all-mountain option
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Syncros are responsible for two of the most iconic stem designs in mountain bike history – the Cattleprod and Cattlehead. The company’s output isn’t as distinctive now, but the emphasis on hard-riding performance remains.


The AM is a forged 6061 alloy stem, designed for the sorts of trails that demand a long-travel bike, although its chunky looks belie a respectable weight. Syncros’s forging process means a minimum of post-forging machining is required, although there are a couple of spots where a little more wouldn’t go amiss. Twin opposing steerer clamp bolts keep everything in line.


The AM has a slightly taller stack height than most mountain bike stem – only by 5mm or so, but if your existing stem is slammed with no spacers there might not be room. Assuming it fits, though, the Syncros AM provides a solid connection between bars and bike at an affordable price.

Product Specifications


Name AM Stem (12)
Brand Syncros

Description Clamp width:47mm, Stack height: 45mm, Sizes: 70, 80, 90, 100, 110mm
Weight (g) 150
Steerer Size 1 1/8 1.5
Clamp/Bar Size 31.8
Angle 7