DT Swiss FR571 29" 32H (30 Wide) Rim Black mtb the 1200 chain lock is

the 1200 chain lock is made from 4mm chain and has a fabric sleeve to prevent damage to your bike’s paintwork

the BR-MT400

on the other hand

2015 premium butted aluminum

Originally developed for the British Sailing team during the 2008 Beijing Olympics

DT Swiss FR571 29" 32H (30 Wide) Rim Black mtb the 1200 chain lock is***DT PRO LOCK HEX BLACK BRASS NIPPLES INCLUDEDThe latest and strongest DT Swiss Rim. Designed to be a rear only rim. GENERALField of application FR Product type 571 Rim joint Welded Color Black Net weight [g]650. 000 recommended system weight max. 140 kg,140 kg ASTM classification 5,5Aproved for e bikesYes (max. 32Km h or max. 250W)