REAR DERAILLEURS Minimum Sprocket size Maximum Capacity Total Capacity Road or MTB Distance on center Between Pulleys Nominal Index Type Front Chainring Difference Speeds Weight Price Campagnolo Record 12T 26T 26T Road 46mm Syncro 14T 7 & 8 256 g. $ Price in Catalog Campagnolo Record Ti 12T 26T 26T Road 46mm Syncro 14T 7 & 8 - $ Price in Catalog Campagnolo Athena 12T - - Road - Syncro - 7 & 8 - $ Price in Catalog Campagnolo Chorus 12T 26T 26T Road 46mm Syncro 14T 7 & 8 246.5 g. $ Price in Catalog Gorilla Billet Proshift 11T 32T 33T MTB 66mm STI 24T 7 & 8 171.5 g. $ Price in Catalog Gripshift ESP - - - MTB - Sram - 8 - $ Price in Catalog Gripshift ESP System - - - MTB - Sram - 8 - $ Price in Catalog Joe's 11T 32T 33T MTB 66mm STI 24T 8 208 g. $ Price in Catalog Paul's Power Glide 11T 32T 38T MTB 75mm STI 20T 7 & 8 184.5 g. $ Price in Catalog Rhino/Dean 11T 32T 33T MTB 66mm STI 22T 7 & 8 216.5 g. $ Price in Catalog Sachs New Success 11T 32T 34T MTB 70mm STI 20T 7 & 8 265.5 g. $ Price in Catalog Sachs Quartz - - - MTB - - - 7 & 8 - $ Price in Catalog Shimano Dura-Ace 12T 26T 26T Road 48mm STI 14T 7 & 8 207.5 g. $ Price in Catalog Shimano Ultegra 12T 28T 28T Road 48mm STI 13T 7 & 8 225.5 g. $ Price in Catalog Shimano 105SC Double 12T 28T 28T Road 48mm STI 13T 7 & 8 246 g. $ Price in Catalog Shimano 105SC Triple 12T 32T - Road - STI - 7 & 8 - $ Price in Catalog Shimano XTR M910 11T 32T 33T MTB 66mm STI 22T 8 222.5 g. $ Price in Catalog Shimano XTR M950 - - - MTB - STI - 7 & 8 - $ Price in Catalog Shimano XT SGS Long Cage M-739 11T 32T 38T MTB 86mm STI 20T 8 - $ Price in Catalog Shimano XT SGS Long Cage M-737 11T 32T 38T MTB 86mm STI 20T 7 & 8 235 g. $ Price in Catalog Shimano XT GS Short Cage M-737 11T 28T 28T MTB 56mm STI 20T 8 - $ Price in Catalog Shimano M567 Deore LX 11T 32T 38T MTB 86mm STI 20T 8 - $ Price in Catalog Shimano M565 Deore LX 11T 32T 38T MTB 86mm STI 20T 7 & 8 291.5 g. $ Price in Catalog Shimano STX-RC MC36 Long Cage 11T 32T 38T MTB 86mm SIS 20T 7 & 8 - $ Price in Catalog Shimano STX-RC MC33 Long Cage 11T 32T 38T MTB 86mm SIS 20T 8 284.5 g. $ Price in Catalog