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Dirty Spokes 6/3 Hour Mountain Bike Race Presented by MAXXIS and brought to you by Roswell Bicycles and Scott!

Location: Fort Yargo State Park, Winder, Georgia 
Date: May 9, 2020 (Saturday) 
Format: Mountain Bike 
Distance: 2 options: 6 or 3 hours
Course Map: GPS | Race Course Preview Video | Course Map
Series: Chainbuster
Presenting Sponsor: Roswell Bicycles and Scott

2019 Results: 3HR | 6HRSOLO | 6HRT
2018 Results: 6HRSolo | 6HRTeam | 3HR
2017 Results:
6HRSolo | 6HRTeam | 3HR
2016 Results: 6HSolo | 6HTeam | 3Hr
2015 Results: 6HR Solo | 6Hr Team | 3Hr
2014 Results:
 6H Solo | 6H Team | 3H Solo | 3H Team
2013 Results: Solo | Team 
2012 Results: Solo | Team
2017 Photos: Wingfoot Photos

REGISTER: On-Line Registration  



6 HOUR RACERS 9:00 A.M. 

3 HOUR RACERS 9:15 A.M. 

JUNIOR 1 and 2 RACERS 9:20 A.M.


We are thrilled to have Roswell Bicycles and Scott join Dirty Spokes for the 2020 calendar year! Looking for a FREE Race Entry... Buy any Mountain Bike, or $250 in Scott Merchandise from Roswell Bicycles and get a free individual race entry for the Dirty Spokes 6/3 Hour Mountain Bike Race, May 9th, 2020! 

We are in our 15th year of putting on the Dirty Spokes Fort Yargo State Park Endurance Mountain Bike Race and as enthusiastic as when we started it (thanks to racers and riders like yourselves). We appreciate the support you all have given our events for the last 14 years and look forward to seeing you out there again this year!

We will be giving away thousands of Dollars in Product for the Dirty Spokes Fort Yargo Mountain Bike Race thanks to Roswell Bicycles, Scott and MAXXIS! They will be providing all 1st Place, 2nd Place and 3rd Place 6 Hour Finishers with some sweet prizes! 

Dirty Spokes is thrilled to be race number 3 of the Chainbuster Race Series again this year (for complete series rules and information please visit Chainbuster Racing)! If you are racing for series points you may register for the 6 hour or 3 hour race.



3 Hour Races
Team Categories -> Description  Cost (Medals Only)

  • Jr 1 Male (14&U) *1 Lap Only - $35
  • Jr 1 Female (14&U) *1 Lap Only - $35
  • Jr 2 Male (15-18) *2 Laps Only - $35
  • Jr 2 Female (15-18) *2 Laps Only - $35
  • Jr Expert Male $40
  • Jr Expert Female $40
  • Jr Sport Male $40
  • Jr Sport Female $40
  • Solo Base Class Age Groups Male: 12&U, 13-19, 20-29, 30-39, 40-49, 50+ - $40.00
  • Solo Base Class Age Groups Female: 12&U, 13-19, 20-29, 30-39, 40-49, 50+ - $40.00
  • Solo Sport Class Age Groups Male: 12&U, 13-19, 20-29, 30-39, 40-49, 50+ - $40.00
  • Solo Sport Class Age Groups Female: 12&U, 13-19, 20-29, 30-39, 40-49, 50+ - $40.00
  • Solo Expert Class Age Groups Male: (One Category) - $40.00
  • Solo Expert Class Age Groups Female: (One Category) - $40.00
  • Solo Single Speed Male (One Category) - $40.00
  • Solo Clydesdale (One Category) - $40.00
  • Ultra Masters (60 Plus Years of Age) - $40.00


6 Hour Races
Team Categories -> Description Cost (Medals and Prizes / See Below)

  • Solo Sport - Female - $55.00
  • Solo Expert - Female - $55.00
  • Solo Beginner - Coed - $55.00
  • Solo Sport - Male - $55.00
  • Solo Expert - Male - $55.00 
  • Solo Clydesdale - Male - $55.00
  • Solo Masters (40-49 Years of Age) - $55.00
  • Solo Grand Masters (50-59 Years of Age) - $55.00
  • Solo Ultra Masters (60 Plus Years of Age) - $55.00
  • Single Speed – Solo - One Category - $55.00
  • 2 Person Male - $110.00
  • 2 Person Female - $110.00
  • 2 Person Co-ed - $110.00
  • 2 Person Expert (Male) - $110.00
  • 2 Person Masters Open (both racers 40+) - $110.00
  • 3 Person Male - $155.00
  • 3 Person Co-ed - $155.00
  • 3 Person Female - $155.00
  • 3 Person Junior Male - $135.00 
  • 3 Person Junior Female - $135.00 
  • 3 Person Junior Coed - $135.00 



Regular Registration Fees through April 31st, 2020

Late Fees Apply to anything received after April 31st, 2020 (On Race Day Also)!

We will be taking Race Day Registration!

No Refunds: Race Entry Fees are non-refundable and non-transferable. Unless otherwise posted the race will be held. Race may be postponed due to natural hazards uncontrollable by Race Director. If race is postponed for any reason, there are no refunds and entry fee will be forwarded to the rescheduled date (May 16th).


PASS LEFT: If you approach a rider and are looking to pass them and you have room to pass on their left call "pass left".

PASS RIGHT: If you approach a rider and are looking to pass them and you have room to pass on their right call "pass right".

DISQUALIFIED: Person ⁄ team who doesn’t follow rules.

WINNER: Person ⁄ team standing on the podium at the end of the race. 6/3 hour race team with most laps at the end of 6/3 hours.


All 6 hour racers will start at 9:00 a.m. with an "on bike" start. No Lemans Start. All 3 Hour racers will start at 9:15 a.m. with an "on bike" start. No Lemans Start. All Junior 1 and 2 racers will start at 9:20 a.m. with an "on bike" start. No Lemans Start.

As you approach the transition area you have one of three choices: (1) go out on another lap, (2) pass the timing chip to another rider as they go out onto the course (teams), (3) stop. 

If your team has a mechanical out on the course you have a couple of options:  (1) fix your mechanical as quickly as you can and get riding again. You don´t have to be self supportive (meaning) if another rider comes along and they have a tool, tube, knowledge, etc. you need, you may get help from them!  (2) if you have a rider that has a mechanical or has a wreck or anything that hinders them from finishing a lap, they may call in and get another rider out on the course. EITHER WAY THE NEW RIDER ON THE COURSE MUST CHECK IN (BUT DO NOT BRING YOUR BIKE WITH TIMING CHIP NEAR TIMING AREA)!!!  Once your rider calls in and reports to CANCEL the lap it is CANCELLED. 

Racers may ride as many laps consecutively as they wish. Each racer must ride a minimum of 1 lap during the 3 or 6 hour period. 

THE 3 HOUR RACE FINISHES AT 12:15 P.M. The laps must be completed by 12:15 p.m. or they will NOT count.

THE 6 HOUR RACE FINISHES AT 3:00 p.m. The laps must be completed by 3:00 p.m. or they will NOT count.

The 3 hour race winners will be the ones that have tallied the most laps at the end of the 3 hours!

The 6 hour race winners will be the ones that have tallied the most laps at the end of the 6 hours!


PACKET PICKUP (We will be taking race day registrations as well):  

  • Race Day Registration / Packet Pick-Up: 7:00-8:30 a.m.
  • Kids Race 8:00 a.m. 
  • Racers Meeting 8:30 a.m.
  • Bikes Positioned At Starting Line 8:45 a.m.
  • 6 Hour Race Starts 9:00 a.m.
  • 3 Hour Race Starts 9:15 a.m.
  • 3 Hour Race Finishes 12:15 p.m.
  • 6 Hour race Finishes 3:00 p.m.  


Fort Yargo State Park
210 S. Broad Street
Winder, Georgia 30680
(Entrance "A")

Remember Georgia State Parks Require a $5.00 Fee (1 Day Pass) or you can purchase a yearly pass!


You will be allowed to camp the night before the race at picnic shelter number 5 area start ⁄ finish area (the charge to camp at picnic shelter number 5 is the same as it would be in a regular camping spot ⁄ we will not be collecting these fees / you can stop by the main office and pay for camping / space is limited / primitive camping only / there are no water hookups / electrical outlets or dump stations available)... or if you just want to come out and set up your pit areas on Friday (after 5:00 p.m.) in preparation for the race you are welcome to do so (no charge to leave 10x10 tents ⁄ pit areas set up the night before).  


We will be doing chip timing RFID Timing System (each participant will receive their own timing chip at the registration table 5⁄9/20 – your timing chip will correspond to your name and bib number). We do not need to collect your timing chips back after the race.


GPS Data The trails at Fort Yargo State Park are outstanding (this course is one of our favorites)! This might be the fastest and best flowing course we have put together at Yargo! Thanks to the work the Yargo Trail Crew has done with these trails (should see some really fast lap times). This race is very scenic and offers both tight twisty single track, double track trails, some roots, rocks and some sweet elevation change! Garmin 705 measures course at 9.15 miles; Calibrated Bicycle Computer "wheel" measures course at 9.76 miles. Please note GPS Units do not capture every twist and turn in the woods as bicycle wheel does roll every twist and turn. 

Each lap will start and finish at Picnic Shelter Number 5 going in a clock wise direction! Follow the Outer Loop past picnic shelter number 5 and up through graveyard hill... just past graveyard hill stay right (crossing the road) and head over and next to the mini putt putt section of the course. Cross over the asphalt road and reconnect to the outer loop. Follow this all the way back to the Nature Center Pavillion. At the mountain bike parking lot / nature center pavillion follow outer loop bypass creek crossing, cross over boys home road, bypass 3 step hill (stay left), stay on outer loop, just past the bottom of the dam bypass monster mile (turn right at monster mile and head up the hill all the way to the gas pipeline / cross over gas pipeline onto outer loop / stay right on outer loop at the other end of monster mile) at the bottom of that section when you reconnect and cross over the gas pipeline staying on the outer loop until you reach the "steel bridge". After the steel bridge stay straight over the top of the hill (deadwood hill) by the chicken houses (again just to take a little distance off) onto the outer loop. Continue on outer loop past the primitive camping area and up over crossing entrance "B" road back to picnic shelter number 5 (after the entrance "B" road it's .75 of fast, flat or downhill to the start / finish area).

Course is dialed in right at 9.76 miles. Intentions are to get lap times about 40-50 mins or so. The idea behind the layout of this course is to hopefully get the individual and team times inside an hour (hopefully putting some strategy together for some of those teams to get that 3rd lap in the 3 hour race! Likewise in the 6 hour race try to get that 6th lap and provide some opportunities to potentially getting a 7th lap if possible)!

Giant thanks to the Yargo Trail Crew for the time and energy they have put into maintaining these trails! If you haven't ridden there ⁄ you´re gonna love it! If you have ridden there you know what we mean! A portion of your race day proceeds will be donated back to the Yargo Trail Crew!


Awards will be given out when we have enough finishers in to fill the categories. Medals (3 Hour Categories) along with Medals and Prizes (6 Hour Categories)! 


We will be having a kids race for 2020 (Approx. 1 Mile in Length).