Browsing Mountain Chainrings from BOX

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BOX Cosine Chainring
  • CNC machined 6061-T6 aluminum with rounded tooth profile to reduce chain wear
 
item # ring type armxBCD teeth color in stock?
DetailsBX-5838 single 4x104mm 38t black YES
DetailsBX-5840 single 4x104mm 40t black YES
DetailsBX-5842 single 4x104mm 42t black YES
DetailsBX-5844 single 4x104mm 44t black YES