Original
Shimano middle chainring for
Sora 3503 triple cranks. The
Sora 39t middle chainring is designed to be matched with the
30t Sora inner chainring and the
50t Sora outer chainring. The
Sora 3503 triple middle chainring is not to be confused with the
Sora 3500 39t double inner chainring. The triple chainring is designed to allow the chain to drop below it onto the inner chainring, while the double chainring it designed to be the stopping point.
- Original Shimano equipment
- For Sora 3503 triple cranks
- Does not include chainring bolts