Etnies Jameson Mid Crank Flat Shoes - US 7.0 - Dark Green YGroup_7033904103469 More than a mechanical derailleur

More than a mechanical derailleur with a battery and a motor bolted on

Extension rod

The lightweight rotors keep the weight in check so the performance boost applies to climbs as well as descents

Rails: Cro-Mo

no matter what brand

Etnies Jameson Mid Crank Flat Shoes - US 7.0 - Dark Green YGroup_7033904103469 More than a mechanical derailleurIf you've ever heard of Brandon Semenuk you'll know that he is freakishly skilled on a bike. You don't get that way without spending a lot of time with your feet on (and off) the pedals and he'd know a thing or two about what makes a great MTB flat shoe. Working with Etnies he's been able to pour all that knowledge into the development of his signature model and combine it with Etnies' 30 years of footwear development from skateboarding and action