As much as necessary, as little as possible: With the 1x drive, you have all the gears you really need.;Brake levers with a small reach increase braking comfort for riders with smaller hands on smaller frame sizes (XXS, XS, and S).;Marlin models in frame sizes XXS to S come with a bent top tube and lower standover height to make it easier for smaller riders to get on and off.;Mounting options for racks and kickstands make it easier to attach practical accessories that turn your mountain bike into a sturdy commuter.