E13 Chainring UL Guidering 5mm Offset Direct Mount flash low rolling resistance and slow

low rolling resistance and slow rebound properties

The chain will be encased in a protective layer and shielded from the harsh elements of dirt

mounting nut

Gear up with the compact and highly visible Serfas® Phoenix integrated USB rechargeable Helmet Tail Light

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E13 Chainring UL Guidering 5mm Offset Direct Mount flash low rolling resistance and slowUL Chainrings are the lightest 1x XC Gravel chainrings on the market. Using the SL Chainring as the platform, we tweaked the arm design and strategically machined the chainring so that only minimal sacrifice was made in impact strength for large gains in weight reduction. UL Chainrings are 5mm (Boost) offset for use with XCX Race MTB cranks on Boost bikes. If you're installing XCX Race MTB Cranks onto a non Boost (142mm) bike, please use SL