Burgtec Shimano Direct Mount Oval Thick Thin Chainring S3-Cat-Fidlock Bearings: Top quality split-lip seal

SKU: 99630553872

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Burgtec Shimano Direct Mount Oval Thick Thin Chainring S3-Cat-Fidlock Bearings: Top quality split-lip sealAfter over a year of testing we are pleased to release our Oval Chain Ring 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 and silence as our round rings. The shortening of the dead spot on the top

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