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2020 EVENT POSTPONED!

SEE YOU ON SEPTEMBER 18TH, 2021, IN MT. SHASTA!

The time has come for us to make a tough call. Sadly, we won't be getting together this year in Mt. Shasta due to the continuing spread of COVID-19. The 2020 event has been postponed. Everybody involved with the event can't wait to reconnect with our Grinduro family, and waiting until 2021 will make the reunion that much sweeter.

We're already shifting our focus to next year... We're eager to welcome the Grinduro community to Mt. Shasta for some maxin’ and relaxin’ on September 18, 2021!

2020 registered riders have the option to donate all or part of your registration fee to Grinduro CA's host organization, the Siskiyou Outdoor Recreation Alliance (SORA), defer your registration to 2021, or get a full refund.

DONATE & WIN!

For every $5 you donate to support SORA, you'll be entered to win an Evil mountain bike or gravel bike outfitted with SRAM and Zipp components, head-to-toe kit from Giro, plus other awesome prizes from Grinduro CA sponsors! If you donate your full registration fee, you'll also get exclusive 72-hour early registration access to the 2021 Grinduro CA, basically guaranteeing you a spot.

Please let us know how to handle your registration fee by clicking the button below and completing the form.

2020 REGISTRATION FEE OPTIONS FORM Register