3 x 7/8 speed, 28.6-34.9 mm, 42T-48T, duall pull

2 x 10 speed, clamp 34.9 mm, down swing, down pull, 46/53T

2 x 7/8 speed, down pull, 34.9/31.8/28.6 mm mount, 50T

2 x 9 speed, dual pull, top swing, 34.9/31.8/28.6 mm mount, 36T