Found inside the head tube of the all-new Propel range, the D-shaped fork steerer tube and corresponding spacers provide an extremely aerodynamic, easier to service system of internally routed brake and derailleur cables.
在全新Propel系列的头管内,D形舵管和两件式的垫片提供了一个极为空气动力学、更易于维修调整的车首走线系统,同时在性能上毫不妥协。