Introduced in 1991 along with the 6400 ‘Ultegra’ group’s upgrade to 7 speed the HG90 cassette was the best choice for those wanting performance but without having to pay top whack Dura Ace prices for a consumable part. Featuring ramps to aid shifting and cutaway sections in the sprockets to save weight this road range cassette is designed to be used with Shimano’s STI indexed 7 speed groupset components.
- Model CS-HG90-7
- Sprockets are in 13;14;15;17;19;21;23 configuration
- In original (but tatty) box