Sub-4 24" Racing RimLightweight BMX race rims.These low inertia box section alloy rims ensure a quick getaway out of the gate.,Stainless nipple eyelets allow high tension spokes for a stiff wheel that transfers chain drive into forward motion with minimum effort.,Race optimised 30mm wide.,Front or Rear (machined cnc sidewall brake surface) specific versions..Recommended Spoke Tension:Front: 80 to 100Kgs. Rear: 100 to 135Kg.SpecificationsMaterial Box Section 6000 series alloy.,Drillings 32H or 36H,Eyelets Stainless Steel,ERD 495mm,Colour Black,Dimensions 30mm wide.