Raleigh Bicycle Company for the production of fuzes. Bicycle production was reduced to approximately 5% of its peacetime capacity. In 1939, Raleigh opened a bicycle factory at 6 Hanover Quay, Dublin, Ireland and commenced bicycle production there. The Raleigh (Ireland) business expanded and moved to 8–11 Hanover Quay, Dublin in 1943. The plant produced complete bicycles and Sturmey-Archer hubs, and remained in production until 1976, when the factory burned down. Models produced there latterly were the Chopper and Triumph 20. The head badges changed in the late 1960s, possibly after the passing of the Trade Descriptions Act in the UK. Dublin-made machines no
Mountain bike terrain bicycle", "all terrain bike", and the acronym "ATB" are used as synonyms for "mountain bike", but some authors consider them passé. The original mountain bikes were modified heavy cruiser bicycles used for freewheeling down mountain trails. The sport became popular in the 1970s in Northern California, USA, with riders using older, single-speed balloon tire bicycles to ride down rugged hillsides. These modified bikes were called "ballooners" in CA, "klunkers" in CO, and "dirt bombers" in OR. Joe Breeze, a bicycle frame builder, used this idea and developed what is considered the first mountain bike. It was not until the