Double wall, sleeved joint bmx rim intended for front wheel racing applications New G69 material is super light with superior strength over 6061 T6 Each TCS Mischief rim comes drilled for TCS and Schrader, with a valve plug for the unused valve hole 24in Alienation Mischief 507 22.9 27.5 19.5 Dbl NMSW Black 28 SV 380g 487UPC/EAN/GTIN: 888571039540