The Shimano Tourney TX 800 Dual Pull Triple Front Derailleur is ideal top swing mech for any entry level sport bike equipped with a triple chain set. It fully incorporates advanced Shimano functions including Dual SIS for index shifting and wide range gearing. It is compatible with 7 and 8 speed cassettes along with HG 8/7 chains. The multi-fit clamp allows fit 28.6mm, 31.8mm and 34.9mm frames and comes in 2 versions 2 fit either 63-66 or 66-69 degree chain stays. Available in silver only.