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Author Topic: BMW F800 - with a bit of bling and a few mods, anything is possible!  (Read 320 times)

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Offline Watty

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BMW races a 2-wheel-drive F800 in European Hill Climb Championship

Hill climb races are extreme events that require extreme machinery.   And while BMW is hardly known for its extreme bikes, they’ve put together a ripper of a factory bike for this year’s international events.

The bike is powered by the engine from an F800, in a custom frame with an extended swing-arm, dirtbike ergonomics, and a paddle-style rear tyre. The front wheel is driven from the counter shaft sprocket, and it’s unclear exactly how this is managed.The bike saw its first taste of competition at the recent Obersaxen round of the European Hillclimb Championships in Switzerland, attacking the famous Karitscha Hill. The course is only 235 metres long, but in this distance it climbs a massive 115 metres, and has sections so steep it would be extremely difficult on your hands and knees, let alone on a 100+ horsepower motorcycle.

Champion enduro rider, legendary stuntman and all-around nice guy Chris Pfeiffer was due to give the 2WD F800 its first outing - he’s taken HP2 Enduros to the podium at this event before - but injured himself in a backflip attempt, leaving the bike’s creator Silvio Scholzel to compete against Europe’s best climbers.

The bike acquitted itself very well, finishing 4th in its first outing. “It’s a very nice bike,” said Scholzel, “much lighter than I anticipated it would be – and it has a lot of power, which is one of the most important attributes a bike can have in hillclimbing. But most importantly, it covers up any little rider errors from me!”

BMW say they have no plans to take the 2WD bike towards production, but with Yamaha already a fair way down the track with their 2-trac 2WD, and other interesting aftermarket 2WD kits like this very effective unit from Christini popping up and apparently proving extremely effective on loose ground, theres still hope that the offroad market might undergo the same AWD revolution that’s happened in the car world.
 

Offline DeepBass9

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Re: BMW F800 - with a bit of bling and a few mods, anything is possible!
« Reply #1 on: July 13, 2009, 01:38:54 pm »
Hmm 4th.... Who were 1st, 2nd and 3rd?

Offline SlowPoke

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Re: BMW F800 - with a bit of bling and a few mods, anything is possible!
« Reply #2 on: July 13, 2009, 01:42:39 pm »
BMW races a 2-wheel-drive F800 in European Hill Climb Championship

Hill climb races are extreme events that require extreme machinery.   And while BMW is hardly known for its extreme bikes, they’ve put together a ripper of a factory bike for this year’s international events.

The bike is powered by the engine from an F800, in a custom frame with an extended swing-arm, dirtbike ergonomics, and a paddle-style rear tyre. The front wheel is driven from the counter shaft sprocket, and it’s unclear exactly how this is managed.The bike saw its first taste of competition at the recent Obersaxen round of the European Hillclimb Championships in Switzerland, attacking the famous Karitscha Hill. The course is only 235 metres long, but in this distance it climbs a massive 115 metres, and has sections so steep it would be extremely difficult on your hands and knees, let alone on a 100+ horsepower motorcycle.

Champion enduro rider, legendary stuntman and all-around nice guy Chris Pfeiffer was due to give the 2WD F800 its first outing - he’s taken HP2 Enduros to the podium at this event before - but injured himself in a backflip attempt, leaving the bike’s creator Silvio Scholzel to compete against Europe’s best climbers.

The bike acquitted itself very well, finishing 4th in its first outing. “It’s a very nice bike,” said Scholzel, “much lighter than I anticipated it would be – and it has a lot of power, which is one of the most important attributes a bike can have in hillclimbing. But most importantly, it covers up any little rider errors from me!”

BMW say they have no plans to take the 2WD bike towards production, but with Yamaha already a fair way down the track with their 2-trac 2WD, and other interesting aftermarket 2WD kits like this very effective unit from Christini popping up and apparently proving extremely effective on loose ground, theres still hope that the offroad market might undergo the same AWD revolution that’s happened in the car world.

The CS drives an hydrolic pump that in turn drives the front wheel.
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Offline Watty

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Re: BMW F800 - with a bit of bling and a few mods, anything is possible!
« Reply #3 on: July 13, 2009, 01:50:20 pm »
Go and watch this video of such an event at Billings, Montana - known as the “Bentonite Nightmare”
Hillclimb Crazies
 

Offline Carnivore

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Re: BMW F800 - with a bit of bling and a few mods, anything is possible!
« Reply #4 on: July 13, 2009, 09:26:32 pm »
Ohlins developed a hydraulic drive in the eighties... same principle. But a pump-and-motor setup is pretty inefficient, although convenient.

In Belgium, two brothers developed a ultra-light helicopter called the Masquito (early 2000's) , and prior to the cable drive which was finally decided upon, they used a similar hydraulic drive. Fluid friction and pumping losses meant a final efficiency of only around 65 percent.
« Last Edit: July 13, 2009, 09:27:08 pm by Carnivore »
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