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Join CORBA, Renew Your Membership or Make a Donation

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For less than the price of a new tire, you can be part of all that CORBA does to ensure that Southern California mountain bikers keep on riding. Your annual $25 membership fee not only helps to pay for the implementation of CORBA's Programs, but also entitles you to the following benefits:

  • Discounts from many bike shops and other retailers
  • Discount for individual mountain biking skills instruction with Mark Langton
  • Monthly issues of the eTerraTimes emailed to you. Keep up with current issues, read fascinating editorials and get all the latest news on CORBA events
  • Satisfaction of knowing that you are helping to further mountain biking recreation in Southern California!
  • CORBA is a tax exempt "501(c)(3)" organization. Your donation to CORBA is tax deductible

There are two ways to join or renew

1. Download a CORBA Membership Application in PDF format, and send it in with your payment via U.S. Mail.

2. Sign up and pay through PayPal using the web forms here.

3. Donations, if you would like to make one, go into the shopping cart like your membership and other items.

4. You can add stuff to your shopping cart at the CORBA Store after selecting your membership level.

5. When you have everything you want, select the "Proceed to Checkout" button on the PayPal "Your Shopping Cart" page. Items will remain in your shopping cart until you remove them or check out, even if you return to the shopping cart at a later date from this computer.

Membership Type

Individual Membership

Family Membership

(Two adults plus kids under 18 free, all at the same address)

Student Member
You must be a full-time
K-12, college, university, trade school or equivalent student.



(Not Applicable)

Basic Member



Supporting Member


Join at this level and receive

  • a free CORBA T-shirt.

T-shirt size:



First T-shirt size:

Second T-shirt size:



Carbon Fiber Member


Join at this level and receive

  • a free CORBA T-shirt
  • a free bike bell.

T-shirt size:

Bike Bell:


Enter your requirements:


Titanium Member


Join at this level and receive

  • a free CORBA T-shirt
  • free CORBA riding socks
  • a free bike bell

Enter your requirements:



Enter your requirements:


 Additional Contribution

  • If you would like to make a donation for a value that isn't in the list, you can add multiple submissions together. For example, to contribute $75, select $25 from the list and add it to the cart. Then select $50 and add it to the cart. The result will be two contributions that total $75.

Thanks for your support!

Donation of (US $):   

Donation for:



 Add stuff to your shopping cart at the CORBA Store

Corporate Membership

Bike shops, bike companies and other companies in the outdoor industry have always been very supportive. If your company would like to become a Corporate Member, type in your company's name and click the "Add to Cart" button to the right.

Company Name:


Add stuff to your shopping cart at the CORBA Store

Subscribe to the CORBA News email list

Refund Policy: Membership cancellation requests must be made within thirty days of receipt of payment. Please contact the membership services: Donations and merchandise purchases are non-refundable.

CORBA is a tax exempt "501(c)(3)" organization. Your donation to CORBA is tax deductible. Your dues will be used to promote trail access and other interests of mountain bicyclists in Los Angeles and surrounding areas.






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