The half-star design of the PG 1070 cassette maintains a high level of shifting performance while creating a quieter cassette/chain combination.
Sprocket set design for high shifting performance with a quieter chain/sprocket set combination
Half star design: light, strong, efficient
Teeth :
12-28 : 12, 13, 14, 15, 16, 17, 19, 22, 25, 28.
Weight: 260 g
Speeds: 10
Wheel lock material: 7000 series alloy forged
Sprocket material: Heat treated steel