John Ker

 A dirt-jump competitor lofts some major air under the threatening sky at September’s Mammoth Kamikaze Bike Games at Mammoth Mountain, California. Photo: JK/Mountain Bike Action

Never underestimate the value of a good helmet. Photo: JK/Mountain Bike Action  

Tyler Viggers, downhill racing at the Mammoth Kamikaze Bike Games. Photo: Phil Beckman/PB Creative

 Boulder leaping at Fontana. Photo by Jay Woolwine.

A rider gets some serious altitude over the doubles at Snow Summit. Photo by Jay Woolwine Photography

 Max Jones leads Randy Spangler on the Flume Trail above Lake Tahoe. Photo: JK/Mountain Bike Action

SoCal race action at Fontana. Photo by Jay Woolwine Photography

 Mountain biking in Oregon with the crew from Cogwild Mountain Bike Tours and Shuttles. Photo: JK/Mountain Bike Action

This photo was taken right before yesterday’s “Photo of the Day.” It’s kinda like the Wayback Machine, but we should check with Sherman and Mr. Peabody about that. Photo: JK/Mountain Bike Action

 High-speed line at the Mammoth Kamikaze Games. Photo: JK/Mountain Bike Action

It takes guts to race the Mammoth Kamikaze on a normal downhill bike. It takes even more to do it on a tandem. Photo by Phil Beckman/PB Creative

Bryson Martin Jr., of DVO Suspension, drops into the Top of the World Trail on Whistler Mountain. Photo by Mike Lord

Cody Johnson flies through a turn in the pro men’s dual slalom in the recent Mammoth Kamikaze Games. Photo: JK/Mountain Bike Action

Jack Zabrowski, near Hayward, Wisconsin. Photo: JK/Mountain Bike Action

Brian Lopes banks into a turn on his way to winning the Pro Men’s  class in the Mammoth Kamikaze Games Enduro last month. Photo by Phil Beckman/PB Creative.

Ron Bergin, executive director of the Chequamegon Area Mountain Bike Association, enjoys the fruits of his labor in the Northwoods region of  Wisconsin. Ron and his colleague, Stephen Morales (the president of CAMBA) and their volunteer trail-builders have created something like 90 miles of singletrack in the Hayward/Cable area. The area was profiled in our November issue. Photo by John Ker/Mountain […]

A rider boosts off  a rock at Fontana in Southern California. Photo by Phil Beckman/PB Creative

KHS downhill pro Kevin Aiello throws a sick whip in the final minutes of the day. Photo by Mike Lord

Kevin Aiello. Photo: Mike Lord

 The bike’s okay, the ground is soft and there’s no poison ivy. Photo: JK/Mountain Bike Action

Bobby Langin leans into a turn near Thousand Oaks, California. Photo: JK/Mountain Bike Action

Toby Henderson returns to form for a high-speed run down  Mammoth Mountain in the Legends of the Kamikaze last month.  Photo: John Ker/Mountain Bike Action

Arthur Smith leads Jordan Rarick down a stony slope at Gooseberry Mesa in Utah. Photo: John Ker/Mountain Bike Action

A rider heads down Heckler’s Rock in one of the practice rounds for the Canadian Open Downhill at Whistler this past summer. Photo: JK/Mountain Bike Action

Spencer Rathkamp hits a funky spot in a berm in this outtake from one of the tests in our November issue of Mountain Bike Action. The issue is on newsstands now. Photo: JK/Mountain Bike Action

Geoff Kabush powers up a climb in the spring of 2014. Photo by Phil Beckman/PB Creative

Shaun Evans drops into the Dead Cow Trail near Thousand Oaks, California. Photo: JK/Mountain Bike Action