Singletracks Mountain Bike News

Colin Ryan is a Senior Development Engineer at Norco and was involved in the design of the latest Norco Optic trail bike which features a high-pivot design. Prior to joining Norco he worked at General Kinetics testing and developing shock absorbers for military and construction equipment.  At a basic level, what problem does a high pivot design solve? Is there a certain type of riding that benefits from having a high pivot? What are the drawbacks to the design? Does a high pivot design improve longevity for certain components? With less chain wrap on the crank, are dropped chains an issue with a high pivot setup? How does the placement of the idler pulley affect performance? What about the number of teeth on the idler cog? Did moving from a traditional setup to high-pivot change the ride feel of the Norco Optic significantly? The decision to use a high pivot on a short, 125mm travel bike is a controversial one. Why do you think that is? The latest Optic is said to be lighter than the previous v