Burgtec Shimano Direct Mount Oval Thick Thin Chainring Stock Item:Burgtec Oval Shimano Direct Mount Thick Thin Chainring ├é┬¡ Burgtec Black ├é┬¡ 30T Specialized®: Aerobar Models:

Specialized®: Aerobar Models:

30PC DISPLAY BOX

Get a perfect position for you with 3 carrier positions and 4 cage angle positions

Stack Height: 40mm

Weight: 70 g (2

Burgtec Shimano Direct Mount Oval Thick Thin Chainring Stock Item:Burgtec Oval Shimano Direct Mount Thick Thin Chainring ├é┬¡ Burgtec Black ├é┬¡ 30T Specialized®: Aerobar Models: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