Cogs - Chainrings & Crankbolts

ROCK RING CHAINRING PROTECTOR

For the hard-core thrasher! Do you treat your high-tech mountain bike like a trials bike? Do you like to ride your bike over logs, rocks, benches, small cars, or any thing that gets in your way? If you do, a Rock Ring may save the teeth on your chainrings. This little goodie protects your chainrings from serious damage. It bolts onto your cranks on the outer side of the outer chainring by using longer bolts. The Rock Ring is larger in diameter than the chainring and made of somewhat thicker aluminum. When your chainring would previously have taken a direct hit, with the Rock Ring in place, it will now get the bashing. The beefy serrated edges help you power over obstacles.

The 2024-T3 aircraft quality aluminum is strong enough to protect without adding lots of unnecessary weight. The Rock Ring is made from 1/8" (3.188mm or .1255") thick aluminum plate stock that is die cut to shape. After cutting, it's die stamped to create two "breaks" that stiffen the piece and give it depth so it "stands off" or away from your crank assembly. The Rock Ring is then anodized in Black, Lavender, Silver or Blacklight (which is a largely Black with splatter shaped areas derived from anodized resist in Lavender and Blue). Available in three sizes: a small one for 46 tooth outer chainrings (round or oval), and a large one for 48 tooth rings, and an extra-small size for Hyper-C/Micro-D model for 42 or 44 tooth chainrings. The Rock Ring comes with longer length (8mm x .75mm x 14mm) steel chainring fixing bolts. The small Black Rock Ring weighs 122 grams while the replacement bolts weigh 20 grams. Be sure to specify size and color.

Color-BK-L-S / Size-S-L $ Price in Catalog

Avid Microdaptor-2

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