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IMBA-SORBA chapters are busy building, maintaining, and riding trails in Alabama, Georgia, Florida, North Carolina, South Carolina, and Tennessee.  Scroll the list to learn about the chapter near you.


Appalachian Mountain Bike Club (AMBC)

The Appalachian Mountain Bike Club (AMBC) is based in Knoxville, Tennessee and has been an SORBA chapter since August 2007. We are commited to complement the goals and purpose of IMBA-SORBA.

Birmingham Urban Mountain Pedalers (BUMP)

Since 1994, BUMP has gained and maintained access to Oak Mountain State Park and Trussville Sports Complex, built miles of new trail, and maintained the relationships with land mangers and state and local governments necessary to maintain this trail access. In the fall of 2010 BUMP became a new chapter of IMBA-SORBA.

Cape Fear SORBA

Cape Fear SORBA’s mission is to create, enhance and preserve great trail experiences for mountain bikers in the Cape Fear region of North Carolina. The Cape Fear SORBA chapter was approved November 2009 and is headquartered in Wilmington,NC while serving the Cape Fear Coast of North Carolina. Currently, Cape Fear SORBA is maintaining or building new sustainable trails in New Hanover County(Blue Clay Bike Park), Brunswick County(Brunswick Nature Park), Bladen County(Brown’s Creek), and Pender County(Heidi Trask).

Central Alabama Mountain Pedalers (CAMP)

We are a mountain biking organization located in Central Alabama centralized from the Auburn area. We are dedicated to improving the lives of the people living and visiting East Alabama. Our Mission is to promote trail advocacy, health, wellness, and education by developing,maintaining, and riding sustainable multi-use trails. Our Vision is to improve the quality of life for the people in the communities we serve by developing mutually beneficial relationships that support the growth of multi-use trail systems and the promotion of outdoor activities.

Central Savannah River Area (CSRA)

CSRA (Central Savannah River Area) meets on the second Tuesday of each month at 7:30pm at Nacho Mamas restaurant on Broad Street in downtown Augusta, Georgia. They hosted the 2010 IMBA World Mountain Bike Summit.

Chattahoochee Valley Area SORBA

This chapter is covering LaGrange and Columbus Georgia to Auburn and Opelika Alabama, located in the Chattahoochee Valley Area and will go by CVA-SORBA. They became a SORBA chapter in November 2007. Their big trail project is at West Point Lake with the Army Corps.

Ellijay Mountain Bike Association (EMBA)

The Ellijay, Georgia chapter (EMBA) of SORBA is promoting trail maintenance in the Highway 515 corridor counties of North Georgia. They are dedicated to having fun and riding bikes, check their web calendar for upcoming events.

Flagler Area Biking SORBA

The Palm Coast / Flagler Beach area of Florida chapter (FABS) was approved in March 2011.  They will create area trails, organize group rides, protect the habitat and build relationships with landowners and land managers.

Gainesville SORBA

The Gainesville, Georgia chapter of SORBA meeting locations and times can be found on their website's Schedule of events. They host the summertime Thursday Night Time trial series at Chicopee Woods.

Greensboro Fat Tire Society

Formed in 1995 and given chapter status in March 2011, the GFTS has dedicated itself to trail access, building and maintenance. They are responsible for taking North Carolina's Guilford County from only ten miles of trail to almost 40 miles and creating the "Zone" jump park.

Gwinnett Area Trail Riders (GATR)

The Gwinnett Area Trail Riders (GATR) invite you to join them on the Gwinnett County Park's bike trails, including Yellow River Park, Tribble Mill Park and the planned Harbin-Alcovy River Park.  They host the Yellow River Festival in the fall.

Midlands SORBA

The Columbia South Carolina chapter (Midlands SORBA) was approved in March 2011. With a focus on local and national mountain bike advocacy, education, and recreation.

Nantahala Area SORBA (NAS)

The Nantahala Area SORBA chapter is forming in Western North Carolina, board approved March 2011. They will be maintaining trails in the Nantahala National Forest, including Panthertown Valley and the world-famous Tsali Recreation Area.

Northeast Alabama Bicycle Association (NEABA)

The Northeast Alabama Bicycle Association (NEABA) was formed in 1988 and is a now a chapter of SORBA (November 2010). Our chapter covers much of Northeast Alabama and is involved in maintaining approximately 30 miles of local trails in the Choccolocco State Forest, Cheaha State Park, the Talladega National Forest, and most recently on Forever Wild's Coldwater Mountain tract.

Northwest NC MTB Alliance

This Chapter serves the geographic area of Northwest NC's mountains and foothills, including the communities of Boone, Hickory, Lenoir, Marion, Morganton, and Wilkesboro. Aligning with the SORBA mission, Northwest NC MTB Alliance promotes land access, trail preservation, and new trail development on the federal, state, and local lands in our region.

Northwest Georgia SORBA

Our mission is to organize and promote trail preservation and development, mountain bike racing, touring, fun and fellowship for all mountain bicyclists. We are committed to the growth of the sport of mountain bicycling and will promote our commitment to the sport through organized rides, work parties, races, socials, festivals and simply put, "Just Plain Have Fun."

Ocmulgee Mountain Bike Association (OMBA)

This is the Middle Georgia chapter or OMBA and they started in 1999. The chapter meets the first Thursday of every month at the LH Thomson Factory, ride at 6pm and meet at 7pm in the factory breakroom. In addition to building and maintaining area trails, we typically hosts mountain bike events as our primary fund-raisers each year.

Pisgah Area SORBA (PAS)

Serving Asheville and the western North Carolina area. The Pisgah Area SORBA chapter was adopted in November 2005. They are working in and around Pisgah National Forest including state and municipal parks.

Roswell Alpharetta Mountain Bike Organization (RAMBO)

The Roswell Alpharetta Mountain Biking Organization (RAMBO) dates back to 1999.  Thier goals include the planning of new trails, maintenance and improvement of existing mountain bike trails used by riders in our area. We also seek to enhance the experience of all levels of mountain bikers… from beginner to hardcore. Both of these goals are served by sponsoring training and instruction sessions, fun community events, trail work parties, and sharing the issues facing mountain biking in our community.

SORBA Athens

The Athens, Georgia chapter of SORBA exists in order to specifically serve the needs of SORBA members in the Athens Area. This is not limited to just the city of Athens, but includes the surrounding areas and counties.

SORBA Atlanta

SORBA-Atlanta holds its monthly meetings at various trail heads and locations, check their website for details.

SORBA Chattanooga

The Chattanooga, Tennessee chapter of SORBA meeting locations and times can be found on their website's Schedule of events. They are building a trail systems at Raccoon Mountain, Enterpise South and Five Points.

SORBA Huntsville

SORBA-Huntsville is the first chapter to join us from Alabama. They were approved at the November 2004 Board Meeting. They hold a great fat tire festival in the fall at Monte Sano State Park.


The Jacksonville Florida area chapter was approved in March 2011 to create and maintain fun, rideable trails in Northeast Florida that are easily accessible, environmentally sensitive and promote an active lifestyle that will give back to the community.

SORBA Middle Tennessee

The Middle Tennessee chapter (formerly the Lock4 Trailblazers) has changed their name and expanded to a larger service area. This change was approved at the March 2005 Board meeting.

SORBA Tri-Cities

SORBA Tri-Cities chapter is an advocacy organization dedicated to the enhancement of mountain biking and the preservation of, and access to, trails across Northeast Tennessee.


SORBA Woodstock

The Woodstock Chapter meetings are the Monday before the third Saturday of each month.  Check the chapter website for location and time.  Trail work parties are held held the third Saturday of each month. They take care of the Blankets Creek trail system on Lake Allatoona and host Pedalpalooza.


South Alabama Mountain Bike Association (SAMBA)

The newly-formed SAMBA chapter is the first to serve Alabama's coastal region. By supporting the City of Mobile, Baldwin and Mobile counties we can bring people and resources together making our current trails even better, adding new trail systems in the area.


Southeast Georgia SORBA

The SEGA-SORBA chapter is the first to serve Georgia's coastal region.  Visit our Facebook page for more info.

Tallahassee Mountain Bike Association

The first SORBA chapter in Florida was created in August of 2006. The local area mountain bicyclists gathered together and formed the Tallahassee Mountain Bike Association.

Tarheel TrailBlazers

The Tarheel Trailblazers was founded in 1990 by a handful of local mountain bike enthusiasts and is now  chapter of IMBA-SORBA (fall 2010). Our volunteers work directly with local land managers, building and assisting in the maintenance of sustainable mountain bike trails, in the Metro - Charlotte, North Carolnia region and including the Uwharrie National Forest.

Triangle Off-Road Cyclist (TORC)

The Triangle Off-Road Cyclists (TORC) chapter have formed a new chapter that was adopted in August 2005. They are a member based organization dedicated to promoting, building and maintaining sustainable trail access for mountain bicyclists within the greater Triangle area of North Carolina. Serving Raleigh, Durham, and Chapel Hill, NC.

Upper Chattahoochee Cycling Club (UC3)

The county of Habersham, Georgia formed this chapter of SORBA, located in  North Georgia's Chattahoochee watershed.

Upstate SORBA

This South Carolina chapter of SORBA was adopted in August of 2007. This group supports mountain biking in the Upstate area of South Carolina by providing a social network of riders and like-minded people. Monthly meetings, special events, group rides, and other activities provide a setting where those seeking to learn more about mountain biking or improve their skills or fitness can find a welcoming, friendly environment.

West Alabama Mountain Biking Association (WAMBA)

The Tuscaloosa, Alabama chapter of SORBA (WAMBA - West Alabama Mountain Biking Association) was established in 2008.  WAMBA's main objective is to keep the trails you ride available for all mountain bikers and those that have a passion for the great outdoors.

SORBA West Georgia

Welcome!!! Trail enthusiasts in Paulding, Douglas and Cobb Counties have joined together to form the West Georgia Chapter of IMBA-SORBA. We are very excited about this new relationship. Bringing together the resources of the three counties will allow us to better serve and grow the mountain bike community than we could do separately.