A cheaper option is to buy the xxx-cr one and cut the center joining pieces out and strip the thread out of the holes losi charge you £3.50 for doing this for 2 minutes work. I recomend DMS always had brilliant service from them and have most thigns in stock
http://www.dms-racing.com/
xxx-cr one is £3.95 part number A2113
xx4 one is £7.49 part number A2210
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