2020 Midsummer Masher MTB Time Trial Race

Sign up now for the Mirror Lake Midsummer Masher MTB Time Trial Race on Sunday, June 28. Online entry is open now!


Our 2020 race is sponsored by the Trek Store of Anchorage. This will be a short and steep, approximately 4-mile race, one racer at a time against the clock.

This is a race for all abilities and an especially great event for newer riders wanting to do their first mountain bike race. Riders leave at 30-second intervals and ride the course as fast as they can.

Who: Mountain bikers!
What: A four-mile time trial race against the clock.
When: Sunday, June 28. Check-in starts at 12pm. Race starts at 1pm.
Where: Mirror Lake Park, Chugiak
Cost: $15.00 online, $20 onsite, free for juniors age 12 and under.
Course: Check out the proposed course on Trailforks.


COVID PRECAUTIONS – Our permit requires masks for check-in and spectating. Masks are not required during the race. Thanks!

CMBRkids Loop

CMBR Intro Loop

Are you bringing the kiddos out to ride singletrack for the first time?  Or maybe you’re looking for a little taste yourself?  This is a 1/2 mile loop that starts from the main parking lot trailhead.  It’s real singletrack with lots of ups and downs, twists and turns, but it’s not as technically challenging as the trails on the back side of the park.

Be sure to go 50 yards to the RIGHT of the main map, back towards the picnic area to find the multiuse trailhead.

You can find a GPS map of this loop for your phone on Trailforks at:



Member Preview Day!

joinit-blackA huge thank you to our members and donors for supporting the Mirror Lake Singletrack!

We will be opening the trails to the public on Friday May 15th, 2020, but would like to extend a special invitation a day early to all those who have supported us during these past five years!

So please come out Thursday May 14th, 2020 for a Member Preview Day and run, ride or walk the Mirror Lake Singletrack trails!


We are so proud of this community for coming together during this time of social distancing to rake and repair the trails for summer.  You are the best!

One more thing:  We just switched to a online membership system, and we probably made a few mistakes. Please log in and update your email, addresses, etc.

You will also able to check your renewal status, and date of last donation.

We love you guys!

Join us on Strava!

Strava press-thumbnail-asset-logo-01

Curious where everyone else is riding these days? Questions about trail conditions? Maybe a virtual race? Get a free account on Strava, track your rides, and join us online!


The CMBR Strava club is open to anyone who pedals the Chugach Mountains, including but not limited to the riders from Mirror Lake Middle School mountain bike club, and CMBRkids youth summer mountain bike program.

CMBR is the only 501(c)3 charitable nonprofit dedicated to educating and organizing the Chugiak-Eagle River community to build, maintain and ride sustainable mountain bike trails on public lands.

CMBR Jersey Preorders!

CMBR Club Ride ShirtsCMBR Club Ride mountain bike jerseys are coming!  CMBR logo on the sleeve and “CMBR” printed above the pocket. Nice!

We are ordering jerseys for our CMBRkids coaches (volunteer to coach and get a shirt for free!)  For the rest of you CMBR folks, we are offering a huuuge discount preorder until March 15th.  Limited selection at retail prices may be available at Speedway Cycles mid-April.

It would also be cool if you joined or renewed your CMBR membership.

Preorder by March 15th and pay $65 mens/$55 womens. Dang!

Regular price is $90 mens/$70 womens.

Check out Men’s and Women’s sizing on the Club Ride website.

Click the size/style below to add it to your PayPal cart.  You can add multiple items for one checkout, just “continue shopping,” click VIEW CART to go back to PayPal.


  • Mens XXL Detour CMBR Club Ride Shirt
  • Mens XL Detour CMBR Club Ride Shirt
  • Mens L Detour CMBR Club Ride Shirt
  • Mens M Detour CMBR Club Ride Shirt
  • Mens S Detour CMBR Club Ride Shirt
  • Womens XL Bandara CMBR Club Ride Shirt
  • Womens L Bandara CMBR Club Ride Shirt
  • Womens M Bandara CMBR Club Ride Shirt
  • Womens S Bandara CMBR Club Ride Shirt
  • Womens XS Bandara CMBR Club Ride Shirt

Shirts will be arriving late April and will be available for pick-up at Speedway Cycles in Anchorage or at our CMBR Trail Work days at the Mirror Lake Singletrack (dates TBA).

We’d like to give Club Ride a big shout-out for their support of our CMBRkids program, thanks so much!