The idea has been copied by those Taiwanese guys. But its unparalled performance has yet to be matched. The DEWLIE has been the world's number 1 Dual-ring Shift guide since we introduced it in 2000. Virtually maintainance free and super easy to setup this guide is your new best friend!
Guideplate w/ flush backside to accomodate more frames with low pivots
C4 3/8” Molded Polycarbonate Bashring
Super Silent Molded Upper Slider and Stepped Roller
Fits up to 38t chainrings
Size(s): ISCG, ISCG'05, BB-Mount
Bolt Pattern: 104
Buy Blackspire Dewlie E-Type Double Ring C4 from Chain Reaction Cycles, the World’s Largest Online Bike Store.