Trek Boone with Jump Off Joe in the Background
Perhaps you have no idea what a decoupler on a bike is, and if so, that’s ok. Because earlier today, I shared a story on Medium Bicycles about the Boone and just-announced Domane SLR. The Boone is decoupled in the rear and the Domane SLR has decouplers on both ends. An IsoSpeed decoupler is Trek’s technology to suspend a road or cross bike by decoupling the seat stay from the top tube—those two tubes are traditionally welded or molded together and that’s where the seat post attaches. Separating the seat/top tube junction allows a pivot with just enough movement to absorb the hits and smooth out the ride. The system does not bob o r sag like a fully-suspended mountain bike pivoting at the bottom bracket. As fun as riding off road on a road bike is, the vibrations and bumps will eventually fatigue the rider—that’s why Trek introduced the Domane with Cancellara in the most brutal races of the season, so he could float across the cobbles to a win.