Heart & Industry

Home · Burgtec

Oval Thick Thin Chainring for Shimano Direct Mount

Oval Thick Thin Chainring for Shimano Direct Mount

Burgtec

£54.99

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 we found 115% (from the top centre) to be the optimum. This shrank the dead spot suitably and gave the same flawless chain retention as our 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. We would recommend sticking to the current sized round ring that you are currently using when selecting your Oval size. Thick

Burgtec's own words, read from their page.

Buy from BurgtecPrice seen 2026-09-07. Not an affiliate link, we earn nothing from it.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.