Check the listing for details. Reve D Front Knuckles.Aluminum Super Light RD-001. Color: Black, Condition: New. Listed at 40.00 USD. Light weight & stylish!ASL (Aluminum Super Light) front knuckle is available now! The new front knuckle has as much material removed as possible from each part to not only reduce the weight but to also prevent any steering linkage interference !Thorough testing has determined the mounting hole positions reducing the unnecessary extra setting options that just add additional weight, this allows you to enjoy driving in an optimized state at all times. Other than the normal bearing 10×5 (4mm thick), applied 3.0mm thick 10 x 5 bearing in addition enable to use with the reduced scrub amount (please use 1.0mm thick spacer together, please refer the instruction manual in detail) The products consists of front knuckles only (Right and Left) Not included: 10 x 5 bearings(4pcs) and Front Axle for YD-2