Sachs 49er 50 4T 2005. Sachs 49er 50 4T 2006. Sachs 49er 50 4T 2007. Sachs 49er 50 4T 2008. Front outer pulley.
Front Outer Pulley Qmb 139 Fits ATU City Star 2009-2010
Front Outer Pulley Qmb 139 Fits Giantco Sprint 50 2009-2012
Front Outer Pulley Qmb 139 Fits Ecobike BT49QT-12C1 50 2008-2010
Front Outer Pulley Qmb 139 Fits Ecobike BT49QT-12F 50 2008-2010
Front Outer Pulley Qmb 139 Fits Ecobike BT49QT-12D 50 2008-2010
Front Outer Pulley Qmb 139 Fits Benzhou YY50QT-21A 50 2016
