Project Description

PowerOval aero non-circular chainrings

For 10/11 speed drivetrains
Aluminium 7075 T6
Sheet 3 mm / 5mm
Precision CNC milled
Black anodized
Crank positioning: 3 offsets possible
Front derailleur shifting aided by 6 stainless steel chainlifters, inner chamfer and shift gates in the teeth
Adaptor available for front derailleur set-up (if brazed on frame).
Made in Flanders by EMINEO

PowerOval® means top quality,
mechanically superior,
bio-mechanically superior,
aesthetic look.

PowerOval non circular chainrings are innovative chainwheels, affordable and of an excellent quality. For the recreational and professional cyclist.

PowerOval chainrings are the result of an inspired design, based on scientific research and testing.

Mechanically and bio-mechanically superior due to a perfect tooth-profile and  -orientation, a sufficiently large ovality, a sophisticated shape and a unique and scientifically defined crank offset (“clocking”).

The bio-mechanical superiority of the PowerOval is proven in a comparative study with computer modeling. These “best-in-class” performance figures are also confirmed by extensive cycling tests at two leading universities.

The mechanical stability (chain drop) of the PowerOval non-circular chainrings was tested very succesfully on the road by 26 elite cyclists and triathlon athletes. From December 2015 untill September 2016 they cycled with the PowerOval more than 30 000 km in competition and in other demanding circumstances without any problem.

PowerOval® is the original and the only genuine Science Based Premium Non Circular Chainring.