Single-speed bicycle on the situation, a messenger may prefer a mountain bike based single-speed, which can roll over many obstacles, or a fast and light road bike-based single-speed. In the United States market, bicycle companies such as Bianchi, Cannondale, Fuji Bike, KHS, Kona, Raleigh, Giant, Specialized, Swobo, Felt, Trek and Niner all have produced and marketed single speed bicycles. Because most full suspension frame designs either have a single pivot that is not concentric with the bottom bracket, or a linkage with a variable center of rotation, the distance between the bottom bracket and rear axle varies throughout the suspension's travel. This
Giant Country Horns Theater in Keene, New Hampshire, on July 12, 1991. In 1994, a different lineup performed with Phish under the name Cosmic Country Horns for a limited number of shows. In addition to Grippo and Gerhard, this expanded horn section included Joey Somerville Jr. and Michael Ray on trumpet, Chris Peterman on tenor saxophone, Mike Hewitt on baritone saxophone, and Don Glasgo (a professor at Dartmouth College) on trombone. This lineup can be heard on the song "Gumbo" from the platinum selling "A Live One" double album. Members of the Giant Country Horns have appeared as special guests at Phish shows