Fifty Years of Kicks – Motorcycle Documentary


by Motojournalism and Traction off-road E-rag. Documentary about off-road riders Paul Rodden and Larry Murray two venerable motorcyclists who just won’t stop doing what they love. More info and behind-the-scenes at motojournalism.com
updates via twitter @motojournalism

Spring Newbie / Social Ride March 25, 2012


Cheryl is sleeping in and I am heading out to the annual Spring ride sponsored by many local businesses and of course Dual Sport BC.  Here is what I can expect for the bigger ADV bikes and I will probably be the only grrl riding an ADV bike.  If there are any other grrls there they will most likely be on a dirt bike.  That is at least what I have seen in the past on these rides.  Too bad more grrls do not get out.  Hopefully if I don’t crash I can get some decent pics and video.  Wish me luck! ;-)

The EZ C Loop

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Opee The Motocross Dog


Some things are too good not to post!

Opee is an extreme dog, he can pull 6 Gs. He’s competed in the hardcore Baja 500 and has clocked up more than 10,000 hours on a dirt bike. When owner Mike Schelin was asked how this unusual relationship formed he said ‘Not wanting to be left behind Opee jumped in to the saddle one day and I thought “My god, he rides better than my ex-wife”. Opee and Mike now help autistic and handicap kids learn how to ride.

CHRISTINI ALL WHEEL DRIVE MOTORCYCLES

CHRISTINI ALL WHEEL DRIVE MOTORCYCLES


Okay, all you techie guys and gals out there…what do you think or make of an All Wheel Drive motorcycle?  They look like a normal bike….what does the jury think of this technology?  Does it make any sense?  I mean we do have All Wheel Drive Cars right?

Christini’s patented mechanical All Wheel Drive system delivers power from the motorcycle transmission to the front wheel through a series of chains and shafts. There is no energy-robbing hydraulics involved.

The lightweight all-mechanical system works similar to that of AWD systems found on four wheeled vehicles. The AWD system (powering the front wheel) is driven at a slightly lower rate than the rear wheel (approximately 80%). Under optimum traction conditions, the rear wheel is actually driving faster than the front AWD system. One-way clutches within the front hub allow the front wheel to freewheel under these conditions. At this point, the AWD system is effectively passive. Though the front AWD system is turning, it is not actually transferring power to the front wheel. When the rear wheel loses traction, the drive ratio, relative to your forward speed, changes. The AWD system engages, transferring power to the front wheel until traction is reestablished at the rear wheel.

The way the front system works is like pedaling a bicycle down hill. You are pedaling, but because of gravity (acting like the rear drive) the bike is traveling faster than you are delivering power. When you get to the bottom of the hill and slow down (similar to what happens when the rear wheel spins), you will begin to power the bike again.

An added benefit of AWD is that the front wheel does not want to wash out. When a front end tucks, the wheel stalls, stops turning, and begins to push. With the AWD system, as soon as the wheel begins to stall, power is delivered to the front wheel, forcing it to turn. With the front wheel under power, it is nearly impossible to wash out the front end.

Gold chain with no coverPower runs via chain from the secondary countershaft sprocket up to a gearbox located on the frame.
Picture of AWD hubPower is converted to a drive shaft running under the tank to the modified steering head.
Picture of AWD hubCounter rotating bevel gears located within the head tube transfer power to the lower triple clamp.
Picture of AWD hubThe lower triple clamp contains a small chain and sprocket system that drives two counter-rotating drive shafts.
Picture of AWD hubThe specially coated drive shafts are telescopic and incorporate linear ball spline bearings. They are counter rotating to eliminate torque effect. They run the length of the fork to the front hub.
Picture of AWD hubThe Christini AWD front hub is equipped with one-way clutches allowing the wheel to transfer power when needed, and freewheel when not in use.