Profile’s Tech Tip #27: What goes Around? Best chainring bolts for Profile Spider and Ring Combo.

Long chainring bolts are primarily used for thicker gears and spiders, however the short chainring bolts are mostly found on complete bikes using a thinner spider and chainring.When you use the long 8mm fronts and backs of the chainring bolts, you will experience, in many cases, that they will not tighten down the gear to the spider. They will just bottom out against each other leaving the gear loose on the spider.


