SRAM X.0 GXP Spider and 10sp 24-38-Guard Review Posted by GiantPandaisy June 1, 2018 in Drivetrain Components This fits your . Make sure this fits by entering your model number. Direct Mount spider/ring sets for GXP crank arms. Good for converting cranks from 80/120mm to 64/104mm bolt circle diameter. x Cycling Outdoor Recreation Parts & Components Sports & Outdoors Truvativ