Burgtec Thick-Thin Oval C-Ring Hope Boost Direct Mount 30t Black

Does a mechanical advantage of increased gearing sound Interesting? If so, read on.

Through research and testing of many different prototypes with varying amounts of ovality Burgtec found 115% (from the top centre) to be the optimum.

This shrank the dead spot suitably and gave the same flawless chain retention as round rings. The shortening of the dead spot on the top and bottom of the power curve allows you to get back into the power phase of your crank rotation sooner.

Burgtec recommend sticking to the current sized round ring that you are currently using when selecting your Oval size.

• Thick Thin Tooth Profile
• 10, 11 and 12 Speed Compatible
• 115 Degrees of Ovality
• Fully CNC Machined from 7075 Aluminium

*32T model pictured