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tylerharvey753

2015 YZ450F

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2015_YZ450F_DPBSE_US_3-750x561.jpg

 

2015 YZ450F FEATURES & BENEFITS

NEW! Stiffer fork springs, new valving and a new fork outer tube improve performance in the mid-to-end stroke and aid fork bottoming resistance.

NEW! Quick-release quarter-turn Dzus air box fasteners for tool-less access to the air filter.

NEW! A new steel bottom engine bracket has been designed for increased rigidity balance and damping feel.

NEW! New Dunlop MX52 tires offer excellent traction front and rear, especially on hard surfaces.

YZ450F ENGINE:

The high-performance ECU provides great bottom-end torque plus delivers a strong feeling of power from 3rd gear up while the gear ratios lengthen the powerband and heighten the feeling of power in 2nd and 3rd gear.

The valve mechanisms and cylinder head feature specs that take performance to the next level, resulting in added power and outstanding performance.

The exhaust pipe has an innovative layout, circling the cylinder, giving the exhaust pipe proper length for an excellent exhaust-pulse effect. At the same time, the exhaust pipe has three different diameters throughout the exhaust tract, bringing out excellent power characteristics. This layout allows the silencer to be behind the side panel closer to the middle of the bike, which centralizes the mass for superior handling.

The compact wet sump lubrication system with piston cooler spray jet eliminates the need for an oil tank, reducing engine weight. The water pump employs a plastic resin impeller for further weight reduction. The
reduced size of the crankcase enabled by this lubrication system design is a major factor in making it possible to mount the 450cc engine on the compact frame to deliver precise and instinctive handling.

The accessory GYTR Power Tuner can simplify the work of adjusting fuel injection volume and ignition timing settings to fit personal preferences or track conditions.

YZ450F CHASSIS/SUSPENSION:

A Bilateral Beam frame is adopted, and the overall dimensions are roughly the same as the frame of the 2013 YZ250F. This gives the YZ450F a compact chassis that provides the most instinctive handling in the 450 motocross class.

The aluminum muffler is positioned closer to the machine’s center of gravity as it is almost completely hidden by the side number plate. The layout allows a shorter, lighter subframe and also contributes to mass
centralization for a lightweight handling feel.

The front suspension has proven KYB ® air-oil separated forks with stiffer fork springs, new valving and a new fork outer tube to improve performance in the mid-to-end stroke and aid fork bottoming resistance. The rear suspension also features settings optimized for ideal damping characteristics to match the chassis dimensions.

The large-diameter 22mm front axle and top triple clamp provide rigidity for unmatched handling and front-end feel. The handlebar mounts are rubber mounted to improve comfort and reduce handlebar vibration.

The fuel tank and air cleaner box give the machine a slimmer feeling between the legs and positions the fuel tank mass closer to the center of the bike, which improves handling feel. Furthermore, the air box can
be accessed without removing the fuel tank for easy serviceability of the large air cleaner element.

A narrow radiator design contributes to slimming down the radiator panel
area.

 
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Black rims look cool until the first sand ride. Or just about any other off track ride. Sounds like its the same bike as the 2014 aside from the motor mount some suspention tweaking and quick detach filter box.

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Black rims look cool until the first sand ride. Or just about any other off track ride. Sounds like its the same bike as the 2014 aside from the motor mount some suspention tweaking and quick detach filter box.

 

I ride pretty much sand only and run 10 lbs of air. While the color on the edge of the rear rim where it meets the tire does wear a bit, they still look great after 150 hours. I have repeated this process (ride sand with black rims for 150+ hours at low pressure) a few times, and my results are always the same. That being said, I like silver too. Just prefer the black. :)

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I wonder if you could retfofit the quick detach filter box cover to the 2014 model

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Does anybody know if they are going to be putting out the "White Wonder" bikes with the black rims? Thats what I like!

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Does anybody know if they are going to be putting out the "White Wonder" bikes with the black rims? Thats what I like!

yamaha's website shows the white bike with black wheels for 2015

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Anyone think they would be faster on the 2015 than the 09 with proper cam and exhaust? That is the question.

Edited by crb357

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Anyone think they would be faster on the 2015 than the 09 with proper cam and exhaust? That is the question.

I had an properly set up '09 with a pipe. I loved it but it wasn't even close to my tuned stock '14.

--KT--

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Anyone think they would be faster on the 2015 than the 09 with proper cam and exhaust? That is the question.

Yes is the answer.

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Cool. I'm down with a torn up right knee till next May and just sold my 09 which I loved. I have my fingers crossed for an E start 2016 YZ 450 I've heard rumors about in Europe. I'm probably dreaming, but dreams sometimes come true. I just hope they stick with the SSS Fork and don't go air.

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Oh, and count me in on loving the Black wheels stock. I ride off road and have had them for several years and even a little nicked and scratched they still really set the bike off for me.

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Really hate to say it but if the blue is coming with the black wheels then they may have a new first time yamaha rider :)

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Cool. I'm down with a torn up right knee till next May and just sold my 09 which I loved. I have my fingers crossed for an E start 2016 YZ 450 I've heard rumors about in Europe. I'm probably dreaming, but dreams sometimes come true. I just hope they stick with the SSS Fork and don't go air.

This is exactly what I am hoping for. They have the e-start on some of the MXGP bikes. I may have to upgrade when the do that. My luck they will do that the same time the change to air forks which I have no desire to have.

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I really don't mind the kick start, however with my right knee competely destroyed, (i managed to completely tear EVERY possible tendon in my knee, I will be having a 2nd surgery next month, that is how bad I did it up)......I'm going to need the E Start!!! I'm a Yamaha guy so the thought of going to another brand makes me flat out depressed. So I'm praying for the 2016 E Start YZ.

The Air fork I (we) can overcome by just retro fitting some SSS forks. Might need new clamps and possible caliper, axle, spacers, etc....but should be no big deal. Keep in mind I'm a pure Enduro/Harescramble guy, so that is why I'm not a fan of the air fork. Having one fail 30 miles from the truck doesn't sound like anything I'm interested in dealing with. MX guys will probably love them I guess.

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My buddy and I got a vid on the new 2015 yamaha bikes, he got a vid on the four strokes and I got a vid on the new 2 strokes. We saw the bikes in the back of the xgames austin motox freestyle pits and we had to get a look so we did!

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