Focus rims have a no-nonsense low-profile design that eliminates excess material, making them some of the lightest weight double-wall rims available Strong and true, Focus rims have single eyelets to help prevent spoke pull-through, which means higher spoke tensions are possible Front and rear specific designs 20in Box Focus RR 451 12 18 14.3 Dbl NMSW Black 28 SV 280g 438 EyelettedUPC/EAN/GTIN: 639266088387