The Trail HDM guide is strong enough for the all-mountain rider yet light enough for the weight conscious XC racer. The adjustable upper guides accommodate rings ranging from 30T - 40T. The polyurethane sliders and aluminum backplate make for the perfect strength to weight ratio. The HDM includes 3 angle adjusters (-2, 0 and +2 degrees) to ensure a proper match to chainring profile. Also included are three backplate spacers to fine-tune the guide to your chainline. Silent, simple, and beautiful.
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