Old Caz

Jan. 27th

Quintessential Hopper (Cross/Gravel Bike)

Old Caz: Jan. 27th

50 miles   /   4500 ft

Old Caz is the quintessential Hopper. With three dirt climbs and descents, an eclectic patchwork of Sonoma County ribbon roads and a creek crossing,Old Caz is the epitome of adventure riding.

Ride Details

Old Caz: Jan. 27th

Old Caz is the quintessential Hopper. With three dirt climbs and descents, an eclectic patchwork of Sonoma County ribbon roads and a creek crossing,Old Caz is the epitome of adventure riding.

Old Caz Transfers: Submit Google Form


We begin with a stiff climb up Coleman Valley Rd. A start that will quickly thin the field and reveal who has done their Winter homework. Rt turn on Willow Creek where the pavement ends at mile 3 and we get our first dirt of the day. We’ll rip a  4 mile dirt descent to Hwy 1 and then  cruise along the Russian River to Duncan’s Mills. New this year is a right turn onto Moscow Rd to Monte Rio and then a left on Bohemian Hwy. Take Hwy 116 West to the tiny exit onto Duncan Rd and this is where the labyrinth begins. The course WILL  be marked but you MUST stay alert to not get turned around. Here are the exact Map/Route Details for Old Caz. Pre-ride if you get a chance or study the map. Remember …fail to plan, plan to fail. The course will be marked and there will be marshals at a few key intersection but there are a lot of little roads and turns. Oh, and don’t forget the creek crossing! What bike to ride? Old Caz has been won on a road bike, mountain bike and cross bike. The roads are rough and descents are tricky. If you only have on bike, ride what you have, and give thanks. If you have choices…ideally a hard tail mtb with skinny tires or a cross/gravel bike with semi slick tires 32-38. You can do it on a road bike but will run the risk of flatting.

“Rest Stops”

There will be Osmo hydration and nutrition stop at the top of Old Caz climb @mile 25.  In addition, we’ll have Guayaki and other snacks to help you on your way. You can stop to fill up or if you leave your own bottles (clearly labeled your you name) at the NorCal Bike Sport tent at the start, we’ll have them set out for you to grab. No hand-ups. This year there will be a second “rest” stop at the bottom of Willow Creek sponsored by Breakaway Bikes to top off your bottles and grab a quick snack. Please DO NOT leave clothing at the feed zones. All leftover bottles and miscellaneous items will be dropped back at the Occidental Community Center.


Friday Night Reg. Pick-Up: 5-8:00 PM Woodfour Brewing Company. Sebastopol


7:30 Registration/sign in open Occidental Community Center ($60 pre-reg SOLD OUT. NO DAY OF REGISTRATION)
9:30 Staging (please don’t line up earlier and block traffic
10:00 Start
1:00-? Finish ‘atop Willow Creek Road. ABSOLUTELY NO PARKING ON WILLOW CREEK RD. Fans and family need to ride from Occidental. There is nowhere to park or turn around!


Grasshoppers have always been about adventure, exploration and pushing your limits. These are timed rides and not races. All Hopper routes are open and riders must obey all traffic laws and rules. See RULES OF ENGAGEMENT

Whatcha’ get

  • A crazy hard, super fun adventure with 300 of your closest cycling buddies!
  • Two hydration and nutrition feed zones. Plus other goodies
  • Awesome raffle goodies at the finish from our generous sponsors
  • Event timing
  • Registration Packet: Guayaki Organic Energy drinks and shots,, Osmo hydration and GU nutrition. Custom Hopper Route Card and 2018 Grasshopper Sticker
  • Emergency Medical Support en route
  • Cold Guayaki, Woodfour Brewing Company Beer, snacks at finish
  • Unforgettable stories of adventure!
  • Prizes: Cash prizes for top 3 Male/Female

Register now


Old Caz: Jan. 27th
  • I don't believe people are looking for the meaning of life as much as they are looking for the experience of being alive.

    Joseph Campbell
  • If you always do what you've always done, you'll always get what you've always got


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