Cogs - Chainrings & Crankbolts

COOK BROS. CRANK ARM CAPS

Another maker of quality crank arm dust caps is Cook Bros. These came from the need to have a crank cap that had a domed top to fit into and leave curved the Cooks crank arms at the B/B spindle. The cap is 2.5mm thick at the edge and 5mm at the middle so we know the dome rises 2.5mm to it's peak at the center.

The interior is hollowed out to depth of 5mm to fit around the crank bolt. The caps have 22mm by 1mm outer threads so they will work in any crankset reviewed in this Buyer's Guide that uses crank arm dust caps. They have a pair weight of 8.5 grams and come in Blue, Black, Lavender or Silver.

Color B-BK-L-S $ Price in Catalog

Sims Crank Arm Caps

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