Cero Design 10mm Offset Stem

Cesar Rojo, ex-World Cup racer, man behind the Mondraker Summum and all round good egg, just beamed over the latest on his 10mm offset stem. For those not in the know, that’s about as short as it gets, so short in fact that Dirt Ed Mike Rose reckons it looks like the one on his Rotec downhill bike from ten years ago.

Cesar talks us through the details and his thoughts behind the design…

With a longer bike it feels more stable but the handling of the bike stays the same. Having a 10mm offset, the handlebar almost turns from its centre, making the bike more direct, in the same way you’d feel a benefit moving from a 120mm to 80mm stem.

Weighing in at around 68grams it’s about half the weight of the lightest integrated stems.

It was a really big surprise how good the bike felt on track. I’d moved up to a large frame but by using the 10mm stem it felt like I was riding the shorter, medium Summum frame. The rest of the bike was set up with a 62 deg head angle and 450mm chainstay.

The stem at the moment is just a prototype done by our studio cerio-design. It has an offset of 10mm, weight with no bolts of 54grams and 68grams with bolts, stem and clamps. We use six bolts instead of 8 bolts like normal stems.

Designed two weeks ago, prototyped last week and raced this weekend at the Gouveia MAXXIS Cup:
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