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TIER 2 GRINDURO SERIES

Grinduro California

Quincy, California (Plumas County) · 2026: September 12 (Quincy, CA — Mountains to Meadows Endurofest)

VERDICT A party disguised as a race where the descents are timed, the climbs are social, and your bike handling matters more than your FTP.

70
LAB SCORE
[05]

The Ratings

Course verdict

51 miles, 7,200 ft. Enduro format: 4 timed stages (dirt-road climb, dirt-road roller, dirt-road descent, singletrack descent) + untimed climbs.[1]

Course Profile ratings for this race. Select a point for its explanation. LOGISTICS3/5LENGTH2/5TECHNICAL5/5ELEVATION4/5CLIMATE1/5ALTITUDE2/5ADVENTURE5/5 22/35
Course Profile
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Custom plan

Train for Grinduro California

A training plan for Grinduro California—shaped to your fitness and the hours you have.

[01]

Course Overview

OG gravel party—timed enduro descents, untimed climbs, legendary Quincy vibes since 2015.

51 mi
Distance
7,200 ft
Elevation
Quincy, California (Plumas County)
Location
September 12 (Quincy, CA — Mountains to Meadows Endurofest), 2026
Date
~400
Field Size
$150-$200
Entry Cost
Facts & History

Grinduro California founded 2015 in Quincy. OG location. Enduro format: timed descents + untimed climbs + party vibe. Spawned global Grinduro series (Germany, France, Scotland, Japan). 400-600 riders. Legendary post-race party. Quincy small Sierra Nevada town. Founded in 2015.

Reputation: OG Grinduro. Party gravel with timed segments. Legendary post-race party.

2015: Founded—OG Grinduro location
2016+: Expanded globally (Germany, France, Scotland, Japan)
2023: Perfect conditions (55-70°F)
2024: Sunny, warm (60-75°F)
[03]

The Course

Three cyclists riding on dirt road through forested mountain terrain with bright sun and lens flare - Grinduro California - Quincy, California (Plumas County)Photo: YouTube / Everything's Been Done

51 miles, 7,200 ft. Enduro format: 4 timed stages (dirt-road climb, dirt-road roller, dirt-road descent, singletrack descent) + untimed climbs. Technical rating: 3/5.

Signature challenge: Enduro format—timed descents reward MTB skills. Untimed climbs = social. Party vibe.

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RIDERS REPORT
Road time trial segment
Riders describe this as the segment no one looks forward to, with one rider losing their paceline partner and having to soldier on alone in 90-degree heat.
Dirt descent segment
First timed segment described as kind of long, with riders getting tired during what should be a descent section.
Grinduro is notoriously dusty according to riders, creating challenging atmospheric conditions throughout the event.
The course features perfect single track around Lake Siskiyou described as a perfect pedestrian party path.
[04]

From the Field

One of the things that's so cool about grindero is that there are four time segments throughout the whole ride or Race So until you get to those segments you do not have to race you can just ride the ride and each segment is completely different from the next there's a road time trial a gravel descent a gravel climb and a single track section so no matter what bike you have you have brought the wrong bike.

Everything's Been Done · 134K views

One of the coolest things about this event is they feed you breakfast lunch and dinner, and there's very busy bike support with alcoholic drinks, bacon, food, watermelon, though everybody's confused and nobody knows where they're going.

Everything's Been Done · 134K views

No matter what bike you have you have brought the wrong bike, because there are four completely different timed segments: a road time trial, a gravel descent, a gravel climb and a single track section.

Everything's Been Done · 134K views
This Gravel Race is GENIUS, Here’s Why
Everything's Been Done · 134K views · 14:43
Grinduro Quincey CA 2025
Andrew Fogg · 31 views · 2:43
RACER

Racer Reviews

Raced Grinduro California? Be the first to rate it.
[07]

Training

September 12, 2026 GRINDURO CALIFORNIA
RIDERS REPORT
One rider ran 29 by 2.4 tires, choosing to keep it non-carbon with Shimano Saint downhill brakes for the varied terrain.
Another rider used 2.1 tires on 26-inch wheels on a vintage Klein frame with modern parts.
[08]

Train for Grinduro California

RACE DEMAND PROFILE

Durability
2
Climbing
7
VO2 Power
7
Threshold
6
Technical
10
Heat
2
Altitude
4
Race Specificity
10
FREE

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12-week training timeline, race-day checklists, packing list, and personalized fueling calculator — unlocked instantly.

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[09]

Race Logistics

Packet Pickup
Friday packet pickup. Multi-day event—Friday expo, Saturday race, Saturday night party.
Parking
Free at event site
RIDERS REPORT
Riders planned to pace line during the road segment, switching off every minute, though maintaining the partnership proved challenging.
The key strategy mentioned is not to completely deplete yourself before the final two timed segments, especially if targeting middle-pack placement.
[10]

Tire Picks

45mmTECHNICAL
1
Schwalbe G-One Bite
45mm · $70 · 38W
excellent wet grip
2
Maxxis Reaver
45mm · $80 · 35W
Technical all-rounder. EXO+ casing shrugs off rocks and roots.
3
Pirelli Cinturato Gravel S
45mm · $74
excellent wet grip
NEWS

Latest Coverage

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Similar Races

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Frequently Asked Questions

The 2019 race earned the title 'The Four Seasons Bike Race' for delivering rain, cold, sun and snow in one day. An elite rider endured '29-degree temperatures' during the 2022 Big Climb, forcing most riders to walk the technical ascent. Even when conditions start perfect, the Sierra Nevada location can deliver extreme weather variability within a single event. Harsher conditions than Karukinka. "Described as a 'rolling gravel stage' by the organisers and was on a forest fireroad."[3]

The evolution from 2019's 2000 riders to 2025's more manageable 450 signups as 'intimate, like a family reunion.' Quincy is 90 miles from Reno with limited mountain town lodging that fills up fast. The multi-day format with Friday pickup, Saturday race, and legendary post-race party requires weekend commitment but smaller field sizes have eased the registration anxiety.[2]

An elite rider describes Stage 2 singletrack as 'twisty, swoopy, flowy' through Redwood forest where 'dust motes floated through the trees' and 'the air was thick with the heady scent of freshly released pine resin.' The Smokechaser stage offers 'flowy Mt. Hough singletrack, a throwback to the original Grinduro' with 2,202 feet of descent over 5.6 miles of technical terrain.[1]

This is 'the first of its kind—a gravel race inspired by the enduro race format' that created an entire category spawning international copycats. The original 2015 Grinduro attracts pros like Tiffany Cromwell from Canyon/SRAM, but Watson notes the party-focused atmosphere means 'gravel races killed gravel, but Grinduro proves that nostalgia wins.'[3]

Come if you want good vibes and can handle singletrack on drop bars—this isn't pure gravel racing. You need actual mountain bike skills for the technical descents and 40-45mm tires that grip. Skip it if you're chasing serious race results or can't ride technical terrain without white knuckling.

[11]

Sources & Citations

Research sources used to build this race profile. Always verify details with official race sources before making travel or registration decisions.

  1. Route Maps RideWithGPS: Grinduro! California 2019 - Sunday Hangover Ride #1ridewithgps.com/routes/31202456
  2. Other Sources Theradavisttheradavist.com/grinduro-california-2025-quincy
  3. Media & Press Gravel Cyclistwww.gravelcyclist.com/training-rides/grinduro-california-...
  4. Other Sources Gravelunionwww.gravelunion.cc/article/grinduro-california-2022
  5. Community Redditwww.reddit.com/r/gravelcycling/comments/11t2wmc/tires_for...
  6. Community Redditwww.reddit.com/r/xbiking/comments/be40lc/sign_up_for_grin...
  7. Community theradavist.com: 2025 Grindurotheradavist.com/2025-grinduro
  8. Community reddit.com: Babikewww.reddit.com/r/BAbike/
  9. Community youtube.com: Watchwww.youtube.com/watch?v=K9OvmGAA2a4
  10. Community youtube.com: Watchwww.youtube.com/watch?v=KyfqpCn9ggo
  11. Community quincymountainstomeadows.com: Grinduro Race.Phpquincymountainstomeadows.com/grinduro-race.php
  12. Community activenorcal.com: Your Complete Guide To Grinduro The International Cycling...www.activenorcal.com/your-complete-guide-to-grinduro-the-...
  13. Community reddit.com: Bicyclingwww.reddit.com/r/bicycling/
  14. Community reddit.com: Gravelcyclingwww.reddit.com/r/gravelcycling/