Chainline on a Standard M8000 or M7000 crankset is 48mm and 50mm on a boost version

5 and 6mm Allen keys have a ball head for angled use on those difficult to reach bolts

Requires 12 Notch 46mm External Bottom Bracket Tool for installation (see link below)

temperature control and prevents build-up of sweat

Lock-On Grip System = 100% Slip Free performance

Ergon SM E-Mountain Sport MTB Saddle - Stealth Black - Cr-Mo Rails - M-L 160mm Envelope Shipping Chainline on a Standard M8000With the rise of eMTB, Ergon noticed that there was a demand for a saddle to keep up with the time spent in the saddle when climbing aggressively and descending all day long. eMTB'ers tend to stay seated throughout steeper and rougher terrain whilst climbing and the Ergon SM E Mountain Sport MTB Saddle saves the day here with the energy saving rear ramp. It drastically improves your seated climbing position whilst saving energy and remaining stable