CRANKARM SET SE BIKES BMX V-RIDGE 180 3PC 19mmx8T SPLINE BK w/BB AXLEFeatures-The tubular Cr-Mo SE V-Ridge cranks come equipped with a super-strong cold forged 19mm spindle-Crank arms feature unique V-Ridge tubing which results in extra strength and less flex-Tubular 4130 chromoly arms-Cold Forged 19mm 9-spline 150mm spindle-SE Wing Logo compression boltItem Specifications-Type:BB Axle included-Color:BLK-Speed:1-Length / Teeth:180mm-Spindle Type:19mm