• Monday 11am - 6pm
  • Tuesday 11am - 6pm
  • UnPredict Your Wednesday
  • Thursday 11am - 6pm
  • Friday 11am - 6pm
  • Saturday 11am - 5pm
  • Sunday Closed
Surly Bikes and blackriver logos

Are you up for a ride challenge in the Santa Monica Mountains? Then hop on over to the shop and take on the Topanga Creek Outpost Loop challenge for a fun mountain bike ride sponsored by Surly Bikes and blackriver. Once completed, You will be rewarded with an awesome Surly Notebook plus a discount on parts and accessories at the shop.

About blackriver

blackriver integrates stories, images, routes and a social network into one exceptional digital platform. blackriver is unique in the route sharing market with an emphasis on story over speed, focusing more on community than competition. blackriver is the future for riders of all kinds to discover, create, and share routes and ride stories. In the blackriver river app you can discover new routes, events and challenges.

The Challenge

Our friends at Surly created a new Challenge called "Writes of Spring Challenge" in blackriver. The challenge includes 4 rides in 4 different cities and our TCO Loop is one of them. The idea is to get people go out there and enjoy the ride rather than competing for the fastest speed.


  • Create a blackriver account and "Join" the Challenge
  • Track your ride with the blackriver app or a Garmin (*see below for more details on using a GPS device).
  • Hit "Finish" and Save your ride.
  • You'll receive a confirmation of your success and then you can visit the shop to redeem your reward.

Feel free to add some words and images to your Ride Story and share on social media using #SurlyWritesofSpring and #Topangacreekoutpost



*If you want to use a Garmin, start by syncing blackriver with Garmin Connect on your profile page. Then, Export the TCX file of the Challenge to your "NewFiles" folder on your Garmin to navigate. Whether you ride with your Garmin or the app, just save and upload the ride and blackriver will confirm that you rode 90% or more of the route. When it confirms your ride, it will send you a congratulations email.

Find out what we're up to

1273 N Topanga Canyon Blvd, Topanga, CA 90290