Ster 4MA
The Ster 4MA, also known as the Aries, is a public transit passenger seat that was introduced in 2001. It is marketed by United States Seating (USSC) as the Aries 4MA in Canada and the United States.
The seat frame and backing is of stainless steel or powder coated carbon steel. The seat inserts may upholstered and padded or formed thermo plastic. For double seats, two widths are available: 35 or 37 inches. The inserts are interchangeable between the two widths as the spacing between the seats is what is widened. The grabrails may stainless steel or injection molded plastic. A headrest option, which goes over the grab rail, and a tubular armrest option are available.
Operators
The following agencies operate or have operated vehicles with this model seat:
Canada 
- Barrie Transit - Barrie, ON
- Belleville Transit - Belleville, ON
- Brampton Transit – Brampton, ON
- Calgary Transit – Calgary, AB
- Coast Mountain Bus Company - Metro Vancouver, BC
- Durham Region Transit - Durham Region, ON
- Edmonton Transit - Edmonton, AB
- Grand River Transit – Waterloo, ON
- Halifax Transit - Halifax, NS
- Hamilton Street Railway - Hamilton, ON
- Kingston Transit - Kingston, ON
- Medicine Hat Transit - Medicine Hat, AB
- MiWay - Mississauga, ON
- Niagara Falls Transit - Niagara Falls, ON
- Oakville Transit – Oakville, ON
- Toronto Transit Commission - Toronto, ON (tested on 1133 2006-2010)
- WEGO Visitor Transportation System - Niagara Falls, ON
United States 
- ABQ RIDE - Albuquerque, NM
- Chicago Transit Authority - Chicago, IL
- Community Transit - Snohomish County, WA
- Detroit Department of Transportation (DDOT) - Detroit, MI
- Fairfax Connector - Fairfax, VA
- Foothill Transit - Los Angeles County, CA
- King County Metro Transit (KCM) - Seattle, WA
- Lane Transit District - Eugene, OR
- Long Beach Transit - Long Beach, CA
- Los Angeles County Metropolitan Transportation Authority - Los Angeles, CA
- Orange County Transportation Authority - Orange County, CA
- Omnitrans - San Bernardino County, CA
- San Francisco Municipal Railway (MUNI) - San Francisco, CA
- Suburban Mobility Authority for Regional Transportation (SMART) - (Suburban) Detroit, MI
- TheBus - Honolulu, HI
- TriMet - Portland, OR
- Valley Metro - Phoenix, AZ
- VIA Metropolitan Transit - San Antonio, TX
References
- 4ONE Aries, 4ONE.com, retrieved on 2009-08-29