Mechanical musing and industry insights from Park Tool Director of Education Calvin Jones.
1 post found in September, 2008.
Written by Calvin on September 30, 2008/Calvin's Corner
This article will discuss the Shimano® "Coasting" system. The Coasting system uses a 3-speed internal hub. The shifting is done automatically the "Automatic Unit." The electricity to operate the Automatic Unit comes from the dynamo (generating) front hub.Read More