April 14, 2024

The Texas Mountain Bike Racing Association’s (TMBRA) Race #5 of the Trek Texas presents the TMBRA XC MTB State Championship Series comes to our backyard as STORM hosts the Hill Country MTB Challenge at Flat Rock Ranch in Comfort, TX. This is the largest mountain bike race in the San Antonio area, with over 350 racers competing in different age, gender, and experience-based classes.



Sponsoring the 25th Annual STORM Hill Country MTB Challenge is a great way to market your business to a local audience of mountain bike enthusiasts in San Antonio and across Texas.

Sponsors underwrite the costs of timing and scoring, awards, schwag raffle items, EMS services, USAC race officials, supplies, and more. STORM always strives to host a high quality racing event and cannot do so without the support of community partners! If you want to be a sponsor, please contact races@stormmtb.org for more information! 

Participating Sponsors








Supporting Sponsors







Race T-Shirt

T-shirts may be purchased on the BikeReg registration page.

Silipint – STORM and Flat Rock Ranch – 25 Years of MTB Racing

Silipint cups may be purchased on the BikeReg registration page.


More info and GPX files can be downloaded below each map image.

2024_HCC XC_Cat_1_2_3

Cat 1, 2, and 3 course

2024_HCC XC_10U_12U

Junior 10U and 12U course