gravel
✓ Verified Active Listing
R2-California Dirt MTB Series, TDS Ranch MTB XC
🧬 Course DNA & Technical Intel
📏 Primary Distance
1 mi
🛞 Recommended Tire
38mm – 42mm Tubeless
🚴 Discipline
gravel
🏁 Course Distance Options
OPEN PRO/UCI/CAT 1 M
CAT 1 M 60+
CAT 1 M 50-59
CAT 1 M 40-49
CAT 1 M 30-39
CAT 1 M 19-29
CAT 1 M Jr 17-18
CAT 1 M Jr 15-16
CAT 1 M Jr 13-14
Open M/F Single Speed
Open E-Bike M
Open E-Bike F
CAT 2 M 60+
CAT 2 M 50-59
CAT 2 M 40-49
CAT 2 M 30-39
CAT 2 M 19-29
CAT 2 M Jr 17-18
CAT 2 M Jr 15-16
CAT 2 M Jr 13-14
CAT 2 M Jr 11-12
OPEN CLYDESDALE, 200+ LBS
CAT 3 M 60+
CAT 3 M 50-59
CAT 3 M 40-49
CAT 3 M 30-39
CAT 3 M 19-29
Cat 3 M Jr 17-18
CAT 3 M Jr 15-16
CAT 3 M Jr 13-14
Cat 3 M Jr 11-12
Cat 3 M Jr 9-10
CAT 3 M Jr 6-8
OPEN PRO/UCI/CAT 1 F
CAT 1 F 40+
CAT 1 F 30-39
CAT 1 F 19-29
CAT 1 F Jr 17-18
CAT 1 F Jr 15-16
CAT 1 F Jr 13-14
CAT 2 F 40+
CAT 2 F 30-39
CAT 2 F 19-29
CAT 2 F Jr 17-18
CAT 2 F Jr 15-16
CAT 2 F Jr 13-14
CAT 2 F Jr 11-12
CAT 3 F 40+
CAT 3 F 30-39
CAT 3 F 19-29
CAT 3 F Jr 17-18
CAT 3 F Jr 15-16
CAT 3 F Jr 13-14
CAT 3 F Jr 11-12
CAT 3 F Jr 9-10
CAT 3 F Jr 6-8
OPEN KIDS COURSE
TUES. 06/02/26 9:00 AM Setup Course Crew (Need 3-4)
WED. 06/03/26 9:00 AM Setup Course Crew (Need 3-4)
THU. 06/04/26 9:00 AM Course Mark & Rake (Need 3-4)
FRI. 06/05/26 9:00 AM Setup Course Crew (Need 3-4)
SAT. 06/06/26 9:00am Setup Start/Finish Lanes, Pop-ups & Tables, Banners (Need 5-6)
SAT. 06/06/26 9:00am Driver & Pick-Up Truck (no shell) for Delineators on Start Lane (Need 2)
SAT. 06/06/26 9:00 AM Rider-Course Inspection (for the 3pm Pre-Ride) (Need 2)
SAT 06/06/26 3:00 PM - CHECK-IN RACERS (NEED 1)
SUN. 06/07/26 7:00am Rider-Inspect Course on Race Day (Need 1)
SUN. 06/07/26 6:45 AM - CHECK-IN RACERS (NEED 3)
SUN. 06/07/26 7:45 AM SWEEP CAT 3 BEGINNERS (NEED 1-RIDE 2 LAPS) OR (NEED 2-EACH RIDE 1 LAP)
SUN. 06/07/26 8:00 AM Cut Watermelon for Wave 1 Racers (Need 1)
SUN. 06/07/26 9:00 AM - AWARDS/PODIUM/FLOATER (NEED 1)
SUN. 06/07/26 7:15 AM - COURSE MARSHALS (NEED 8)
SUN. 06/07/26 10:00 AM - CAMP KITCHEN CREW (NEED 3-4)
SUN. 06/07/26 7:45 AM Course Marshal Rover (NEED 2)
SUN. 06/07/26 ~2:45 PM - TEAR DOWN (EVERYONE)
SUN. 06/01/25 - 2:45 PM - CLEAR COURSE-LAST RACER STARTS LAST LAP (NEED 4 or a local youth bike club
About R2-California Dirt MTB Series, TDS Ranch MTB XC
Official registered gravel event in Grass Valley, CA. Direct registration on BikeReg.
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⚙️ Recommended Pro Hardware for R2-California Dirt MTB Series, TDS Ranch MTB XC
Top-rated power meters, radar, and GPS computers curated by Threshold Cycling.
Dual-Sided SPD Accuracy
View Product Specs ↗
Favero Assioma Pro MX-2 Power Meter Pedals
$759.00
±1% real-world power accuracy, seamless Bluetooth/ANT+ connectivity, and full rock strike durability designed specifically for gravel epics.
Backcountry Safety
View Product Specs ↗
Garmin Varia RTL515 Radar Tail Light
$199.99
Detects approaching vehicles up to 153 yards away with visual and audible cockpit alerts on your GPS computer. Vital for remote rural gravel roads.
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