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ZA
Looking through the latest MXGP pictures. The twin pipe started to look appealing to me compared to a single pipe.
I normally subscribe to the "one is cheaper and simpler so why change it" MXA concept and I know the consensus is single for most MX'ers. However compare some of these pictures and decide for your self what you think - Aesthetically it looks like a step forward in design to me.
I normally subscribe to the "one is cheaper and simpler so why change it" MXA concept and I know the consensus is single for most MX'ers. However compare some of these pictures and decide for your self what you think - Aesthetically it looks like a step forward in design to me.
Isn't it double the weight? If someone asked, "Would you rather have 5lbs added to your bike or 10lbs?" What would you say?
I know I owned a 2015 Honda and now own a 2016+2017 Kawasaki
The Shop
However, they are NIGHT AND DAY Quieter than other systems.
A Kawi sounds like puts out the same db as a god damned monster truck, while a Honda can't be much louder than a tricked out pit bike.
I wasn't a believer until I got this bike... I get it now. I'm also not a hard core racer.
Weirdly enough I am not getting the results I did when I was on the Honda, but I dont think thats the bikes problem.
How did you find your switch?
Have it mapped for U4.4 using your favorite pipe, of-course.
Ride the damn thing.
Pit Row
Looks good like a shorty looks on a 2T
2017 - This view of the engine will show another look at the intake. See the yellow dial? That's the choke, showing how high the new throttle body is stashed on this CRF450R. Below the throttle body is the frame backbone, which supports the shock mount. Normally, this section is above the air intake, but has been moved to support this large change and mount the shock lower and at a different angle. Behind the cylinder head, you'll see a pipe leading out the back of the bike. This is the new exhaust mid-pipe, which now separates before the shock, instead of after like the previous dual-exhaust CRF models. This is only possible because the throttle body is mounted so high on the bike.
One small - One big - Small one sound test side :-)
If weight is your absolute number one issue...buy a damn two stroke.
For the US there is no verification of what RPM the motor hit so mapping games still apply since the AMA is still using last year's FIM suund test spec. They aren't lagging as it is their norm to have the FIM test drive new regulations for a year then the AMA follows suit. Mind you there will still be gamesmanship to pass sound but at least having the RPM acoustically verified is a step in the right direction.
Full disclosure: I introduced the company that developed Race Patrol to the AMA and FIM at the MEC 2014. Fast forward to present time and I'm the US rep for Slovenian based EA Labs who worked miracles to develop this system in a short amount of time.
FIM purchased the Race Patrol system. There is also the Race Patrol Lite version perfect for exhaust manufacturers, race teams and local promoters.
Both systems are IOS based completely automated and bring sound testing into the 21st century.
Its actually quite interesting where the new exhaust route goes and the top of the shock support being lower plus closer to the engine cylinder, that should equal even more 'centralised mass' and an even lighter feeling while riding.. I think ML mentioned that he thought the clutch basket was higher and closer to the cylinder...again making it more centralised and lighter.
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