If you're looking for a way to start shaving weight from your setup without sacrificing on durability the Profile Hollow Cr-mo Spindle is a great option. The Gun Drilled Hollow Spindle is made from heat-treated CrMo so its strength and durability are just as reliable as regular spindles, just with a fraction of the weight. It's so strong that it's covered by Profile's Limited Lifetime Warranty. Please note: the 5.625" spindle is the standard BMX size. ###section### Product Specs Crank Type: Drive Type: Spindle Diameter: 19mm Drive Side: Left & Right Compatible Includes BB Bearings: No Weight: TBC ###shogun-image-section### Size: 6.875, 5.625, 6