The
Shimano Tiagra 4603 triple 30t inner chainring is made from aluminum and features cut-outs to help reduce weight.
Tiagra 4603 chainrings use Shimano's SG-X tooth profile for precise, quick shifts. The 30t chainring is designed to be paired with the
Tiagra 4603 39t middle chainring. The 92mm chainring BCD only works with
Tiagra 4603 triple cranks.
- Original Shimano equipment
- To be paired with 39t middle chainring
- Chainring bolts not included