Silver Chainring Guard Handlebars Granny gear 74 mm bcd

Granny gear 74 mm bcd (bolt circle diameter) x 24t or 26t or 28t

These chainguards take the place of the outer (big) chainrings on the crank

Flange Diameter: 43m

but we don't test it on others

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Silver Chainring Guard Handlebars Granny gear 74 mm bcdWorks with 110 BCD chainrings with 34t, 38t (for 36 38t) or 42t (for 40t to 42t). The S! LVER chainguard sits close to the chainring, so it totally prevents the chain from jamming between the outer ring and itself. Made of aluminum (don't let they magnet fool you, there is a steel door behind that white backdrop). These chainguards take the place of the outer (big) chainrings on the crank. You can either use a big chainring OR one of these