Sigma are a leading producer of cycle computers, heart rate monitors and lighting systems. A young, dynamic company they are made up of enthusiastic employees who are as passionate about riding as their customers are. Their mantra is of high performance, quality products at great value. Making very important bike parts which need to perform efficiently, providing technical support to the rider, means that quality awareness is one of their main objectives. But Sigma also aim to provide competitive price-performance on all of their products as well. Sigma represent German technology at its highest level, combining innovative design with precision engineering - all devices are tested to ensure they can withstand even the harshest conditions. Their success comes from their commitment to quality and the constant improvement of their entire line.