Oversized version of the BSD Levelled stem. The Stacked OS stem has a machined BSD logo and features BSD's gorilla grip system which has a larger 25.4mm clamping diameter to work with Oversized handlebars. The stem clamping area diameter is increased from 7/8" (22.2mm) to 1" (25.4mm). This increase in diameter gives 14% more clamping area than on regular 7/8" handlebars, so when you're nose diving down a 12 set your bars are less likely to slip, BSD OS Gorilla Grip system.
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