The bolts we provide are 1/2-13 thread specification. INCLUDEDS:2 x handlebar riser Spacers ,2 x ANSI Grade 8 Carbon Steel Bolts,2 x Nuts and 2 x Wahsers. These Riser Extension Kit is Designed to Adding 2" Rise to YourHandlebars for a More Upright Riding Position That AlleviatesWrist and Back Discomfort.
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