１：超薄机身设计新颖迷你,美观大方RD500ARD1000ARD2000ARD3000ARD4000ARD5000ARD6000A２：电脑平衡处理,精工细作,手感流畅３：进口工程塑胶,油漆防腐蚀处理４：UV电镀装饰片５：易折摇臂.防滑T字型橡胶把手６：多档或无级制动,双色高档打孔铝线轮, ７：RD系列技术以参数如下SIZERatioBallBearingsLineCapacityRD500A5.1:11BB-10BBMm/m:0.15/1500.20/1100.25/100LBS/YDS:4/1506/1108/95RD1000A5.1:11BB-10BBMm/m:0.15/1800.18/1400.20/120LBS/YDS:4/2006/1608/100RD2000A5.0:11BB-10BBMm/m:0.18/2400.20/2000.25/140LBS/YDS:6/2208/16010/120RD3000A5.0:11BB-10BBMm/m:0.20/2400.25/2000.30/140LBS/YDS:8/20010/16012/120RD4000A4.7:11BB-10BBMm/m:0.30/2000.35/1600.40/120LBS/YDS:12/18014/14016/100RD5000A4.7:11BB-10BBMm/m:0.35/2000.40/1600.45/120LBS/YDS:14/18016/14018/100RD6000A5.7:11BB-10BBMm/m;0.35/2700.40/2100.50/130LBS/YDS:14/24016/19020/120