Of all the modifications I can contemplate, drilling, tapping, and making an anti-chain-jam pin seems modest!
Quote:
Originally Posted by Mark McM
Apart from being made in larger sizes, the main difference between 110 BCD middle chainring and the OX outer chainrings is the addition of an anti-chain-jam pin. Another possible difference is that chain lift pins on OX chainrings are optimized for larger chainring differentials, although I've found that typically the chain lift pins can tolerate a wider range of chainring differentials than they are labeled for.
It's great that TA Specialites make 46 tooth middle chainrings, but there's still a need for a 48 tooth chainring for the popular 48/32 combination.
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