On-One 3D stem review

Best value stem out there

Our rating 
4.3 out of 5 star rating 4.3
GBP £9.99 RRP | USD $16.60
On One 3D Stem

Our review

Does everything you need from a stem for a fraction of the normal cost
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Proof that good design doesn’t have to cost a fortune, or even more than a tenner, comes from Doncaster dons On-One.


The 3D stem is pretty light at 147g for a 100mm version, with the forged body and open frontplate providing enough stiffness strength for cross-country/trail use.


The four-bolt front and twin-bolt opposed rear are plenty secure and there are no sharp edges. It comes in loads of lengths and rises, plus there’s a heavier duty ‘456’ version. It’s slightly flexy though, and only comes in the smaller 25.4mm standard diameter.

Product Specifications


Name 3D Stem (09)
Brand On-One

Weight (g) 147
Available Colours Black
Steerer Size 1 1/8
Clamp/Bar Size 25.4
Stem Length/Reach Options 100mm 70mm 80mm