BMX crank spindle HOLLOW bolts - these will NOT fit regular spindle Profile cranks. * Size: M12 X 1.25 X 25mm (because of the flat head, 25mm in this case is also the overall length of the bolt) * Head is 20mm in diameter. Must use a 6mm wrench ONLY. * Comes with a pair of silver aluminum alloy concave washers (outer diameter of the washer is 20.5mm) * Color/Finish: BLACK (by PVD, physical vapor deposition) * Material: TITANIUM * Grade 5 (6AL-4V) * Weight: Total weight of the two bolts and two washers is 25 grams). This is almost HALF the weight of regular steel bolts. * TORQUE TO MAXIMUM 34 ft-lbs (be sure your professional installer knows this is the maximum torque) * Will NOT fit regular Profile spindles. These are only for Profile 19mm GDH spindles. PLEASE MEASURE BFORE ORDERING. SOLD IN PAIRS

M12 X 1.25 X 25mm HOLLOW bicycle BMX crank bolts fits Profile 19mm GDH spindle