The BOX chainring bolts in Chromoly are hard wearing, slightly heavier, more affordable version of the BOX chainring bolts.
These take care of just about any chainring/crank configuration, supplying 6mm and 8.5mm front bolts, along with 5mm rear nuts.
- 5 x 6mm front bolts
- 5 x 8.5mm front bolts
- 5 x 5mm rear nuts