absoluteBLACK Oval Narrow-Wide Direct Mount Chainring – 32t e*thirteen Direct Mount 3mm Offset Black. absoluteBLACK Oval Direct Mount Chainrings for e*thirteen are designed for use with e*thirteen TRS cranks. Direct mount chainrings provide significant weight savings over a standard spider and chainring combination. They are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. Ovality has been optimized for each chainring size ranging from 10.2 – 14.4% with timing of 110.5-116.3 after TDC (top dead center).

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