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Old 03-07-2014, 12:17 PM   #1
B1KSOLO OP
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Rally Bike ?

The more I start to look at rally racing a few questions pop up. What is the reason the rally bikes have a difference exhaust set up compared to a stock dirt bike.
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Old 03-07-2014, 12:35 PM   #2
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To clear the rear fuel tank/s and leave room on the sides of the motor for other bits like a battery and such?
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Old 03-07-2014, 12:35 PM   #3
doyle
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Quote:
Originally Posted by B1KSOLO View Post
The more I start to look at rally racing a few questions pop up. What is the reason the rally bikes have a difference exhaust set up compared to a stock dirt bike.
In many cases, it's to clear the rear saddle tanks or on more recent bikes, the rear tank/subframe unit.
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Old 03-07-2014, 04:02 PM   #4
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And to clear the front tanks on those bikes with front tanks that extend all the way to the bash plate.

Considering this question comes up at least once a year, couldn't we all get to gether and come up with some long winded smart arse answer that we can all back each other up on?

Like the ASO states that the exhaust must be a specific length and the only way to achieve that length is routing in below the engine.

The reason behind the length is blamed on a miscommunication between ASO officials, as well as typing error, and when it was discovered, the ASO denied they could ever make a mistake, and now rallye bikes are stuck with it even though it makes them susceptible to crush damage.

Still, it is better than having your nuts roasted by routing in up and over...

Something like that but not as shit.
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Old 03-07-2014, 07:27 PM   #5
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That Mr Rev was the best thing you've ever posted

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Old 03-08-2014, 02:52 AM   #6
640 Armageddon
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Quote:
Originally Posted by tHEtREV View Post
And to clear the front tanks on those bikes with front tanks that extend all the way to the bash plate.

Considering this question comes up at least once a year, couldn't we all get to gether and come up with some long winded smart arse answer that we can all back each other up on?

Like the ASO states that the exhaust must be a specific length and the only way to achieve that length is routing in below the engine.

The reason behind the length is blamed on a miscommunication between ASO officials, as well as typing error, and when it was discovered, the ASO denied they could ever make a mistake, and now rallye bikes are stuck with it even though it makes them susceptible to crush damage.

Still, it is better than having your nuts roasted by routing in up and over...

Something like that but not as shit.
I think I have the actual document somewhere.... Let me see....

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