`- 42-34-24t and 48-38-28t compatible, suitable for most Shimano 3x7/8sp drivetrains\n- Top swing with alloy base bracket/clamp \n- Dual pull design is convertible between top-pull and bottom-pull cable routing \n- Multi clamp insert converts the 34.9mm clamp to fit 31.8mm and 28.6mm seat tubes \n- For standard 66-69 degree chainstay/seat tube angles\n- 143g