Thanks for visiting the Sonoran Desert Mountain Bicyclists! We are an all-volunteer 501c3 non-profit organization devoted to the promotion of mountain biking, and view the sport as a vehicle to promote low impact outdoor recreation, conservation, and opportunities that are environmentally and socially responsible. We hope that you will use this website as your Tucson mountain biking resource for finding events and trails to ride, as well as to stay up-to-date and help our trail advocacy efforts.

Como Access into Tortolitas CLOSED


Late last week, representatives from SDMB, TORCA, and CASA met with area property owners and a representative from Saguaro Ranch with the end result being that the present trail access from Como Road being declared closed. Sadly, there were a number of events cited that lead to their decision, each of which reflect an escalation of behaviors and emotions with the closure of access being the only remedy acceptable by the property owners. Additionally, Saguaro Ranch is under new ownership, and in the near future, a larger gate was slated to be installed, further declaring the community as closed.

On the silver-lining side of the story, a meeting has already been scheduled with Marana’s Planning & Development and Parks & Recreation Departments to resurrect the plan for a new trailhead access to be granted (knowing that the current situation was not acceptable). More information will be coming out as comes available.

Obviously some will want to keep riding through this access, or certainly know people who will. Please don’t, and urge others not to as well. While it was the unfortunate build-up over several confrontations that lead to the road closure, it is these same people who have indicated support for the new trail alignment, and will encourage the owners of the two other properties to support the re-route that will benefit all. Continuing to add fuel to the fire will only jeopardize what remains.

This is where you come in.

Whether in the Tortolitas or elsewhere, we all like to have access to our favorite trails. Truth is, most people don’t even think about what it took to bring that trail to fruition. Every trail has had its challenges with property ownership, government agencies, and working with the natural habitat. Trails just don’t happen, which is why we need your help to make them happen. If you are not already a SDMB member, join today to help is continue our mission to Build, Ride, and Protect trails in the Tortolitas and all over Tucson.

Photo Contest – Your Photo on SDMB’s Tool Trailer!


SDMB wants your photos! Sonoran Desert Mountain Bicyclists is running our first ever photo contest to celebrate our new tool trailer, purchased with a grant from REI. The winning photo will be featured on the graphic wrap on our tool trailer, and will be seen at trailheads and events all over Tucson and Pima County. The Sonoran Desert is an amazing and unique place to live and ride; help us showcase it by submitting your photos of mountain biking in the desert!

In addition to getting their photo featured on our trailer and website, the winner will receive a $100 gift card to Tucson Endurance Performance Center and an SDMB swag bag with a trucker cap, hoodie, flask and t-shirt. Four (4) runners-up will get an SDMB flask and their photos featured on our website. The contest runs September 26-October 26. The winner will be announced at SDMB’s Pint Night on November 4 at Borderlands Brewery.

More Details & Enter the Contest

Urban Assault Ride – Volunteers Needed!

Tucson Urban Assault - SDMB

The Urban Assault Ride is coming up on Sunday, November 15! SDMB is the non-profit beneficiary for the event, and we need to rally 60 volunteers to make the event happen.

This is an opportunity to raise more than $4,000, which will go directly to new trail development at Starr Pass this fall and winter. If you are not riding in the event (it’s a blast!) please come volunteer for the event. Volunteers are needed for:

  • Setup shift (6:30 AM – 11:30 AM)
  • Running the obstacles (8:30 AM – 1:30 PM)
  • Take down shift (11:30 AM – 3:30 PM).

Volunteers will receive a post-shift beer, a t-shirt, a lunch ticket, and a crap-load of fun. You will also get the satisfaction of knowing that you helped get new singletrack built in Tucson, along with our eternal gratitude.

To register, go to: http://adventurefit.volunteerlocal.com/volunteer/?id=10858

See everyone there!

Ride for a Teacher

Come out to Ride for a Teacher with Carlos Resto! Just show up with at least $5.00 in school suppies, enjoy a great ride, and enjoy post-ride beverages courtesy of SDMB. Meet at the Gabe Zimmerman trailhead at 6:30 AM. The route will take us South across rolling XC trail to Lakes Road and back, for about 22 miles round trip. You can of course turn around sooner at any time.

When: Saturday, September 12, 6:30am
Where: Meet at the Gabe Zimmerman Trailhead
Trail: AZ Trail Lakes Road trail page
Distance: Roughly 22 miles out/back

To sign up for the event and get more info, see the Facebook event.

We will also have one each of the new SDMB sweatshirts, trucker caps, flasks, and t-shirts to give away, to be chosen at random. Make sure to drop your name in the jar for the drawing!

School supplies will be donated to Prince Elementary School. For anyone who follows the news, you know that our schools are drastically underfunded. They need our help, and a great way to support Arizona schools is through donations of school supplies. Items that are needed are:

  • Baskets/bins
  • Binder clips
  • Cleaning Wipes
  • Clorox wipes
  • Composition books
  • Decorative Borders
  • Dividers
  • Dry erase markers
  • Erasers
  • Flash drives
  • Folders
  • Hand sanitizer
  • Highlighters
  • Markers
  • Paper towels
  • Paperclips
  • Pencils
  • Pens
  • Postits/Dispensers
  • Printer Paper
  • Pushpins
  • Scissors
  • Sharpeners
  • Staplers
  • Staples
  • Tape/Dispensers
  • Tissues
  • Wide ruled paper

Social Ride – Starr Pass

Join us on Saturday, June 13th (7:00am) at the main Genser Trailhead for a social ride at Starr Pass

We have been working hard with Pima County to lay out more than five miles of new singletrack that we hope to start building in the fall. On the ride we will show folks some of the proposed corridor and answer questions about proposed trail closures in the future.

We will ride the “regular loop” including the Yetman reroute, with more miles if folks are interested. Mellow pace, no one gets dropped.

Post-ride frosty beverages courtesy of SDMB.

Email trailsteward@sdmb.org or go to the Facebook event page with questions or to let us know you’re coming out.

SDMB Wins $10,000 Grant

We are absolutely thrilled to announce that SDMB has been awarded a $10,000 grant from REI to support the construction of 5.5 miles of singletrack in Tucson Mountain Park.

“We are excited to provide your organization with funding, but more importantly we are committed to strengthening our partnership. Working together, we hope to build greater awareness of your efforts to care for and increase access to the outdoor recreation places where our members and customers play, as well as REI’s investment in your organization.”


– REI Representative

Thank you REI! We feel the same way!  Please keep an eye out for future trail building days so you can help us put these fantastic grant funds to good use!


Builder Movie Screening

Come on out to Borderlands Brewing Company and watch PinkBike’s production of Builder, a great new film about the art and science of trail building. It tells the story of trail building through some of our sport’s best riders and most respected builders.

This is a no-admission event and open to the entire community. Best yet, Borderlands will donate a portion of beer sales to SDMB’s trail building efforts.

When: Wednesday, July 29th – 7:00 p.m.
Where: Borderlands Brewing Co. – 119 E Toole Ave, Tucson, AZ 85701

Check out the trailer, and see you then!

Fantasy Island Parcel Development

The public is invited to a informational meeting regarding the sale of land owned by the City of Tucson, which includes our beloved Fantasy Island. Local cycling clubs have been working with the City to preserve as much of Fantasy Island as possible.

June 2, 2015 | 6:00-7:00pm
Pima Community College East | 8181 E. Irvington Road
Community Room

View Meeting Invite Flier  View Proposed Modification Map

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