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Mx banshee build


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5 hours ago, Richard2112 said:

I nees a new flywheel. Should I get A lightened flywheel or am I better off sticking with a stocker. 

Stock. The inertia will help keep momentum through turns so the motor jumps right back in to the rev. If you weigh over 120 LBS. you'll definitely not wanna do a lightened flywheel. 

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Is there anything else I should look into while I have it torn apart


Depends on how torn apart it is, but in the interest of trying MX out and building a general purpose banshee...

Suspension is hands down #1, case saver, pro mod trans, VF4s, eliminate all the unnecessary shit, 4/1 rims and good tire selection, good controls, nerfs with race position pegs, adjustable axle, and basic maintenance would be at the top of my list.

Beyond that, a roundhouse swingarm, KC harness, drop subframe, gripper seat, 07+ YFZ brakes, gusseted chassis, and aluminum axle components and hubs can be added to the list but don’t offer as much return for the money involved.

Generally, 50-55whp over a wide powerband with comfortable controls and great tire/suspension setup will get you 90% of the way there. If you need more than that, you can drop another $5-10k into it, but you’ll never be at the advantage of the 4-stroke guys.

To put it into perspective, I beat my personal lap record at a small local track (48 seconds) that I had on my built MX banshee with a bone stock YFZR on the first hot lap that I put in. The last iteration of my YFZR build let me turn a 39.9 second lap and this iteration will be faster.


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One thing I haven't seen mention (maybe I just missed it) is a steering damper. This will help out IMO. I know tyler's yfzr could have used one when I rode it. But I will agree, riding that stock yfzr, I just felt more comfortable while riding it than I have on any banshee.

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One thing I haven't seen mention (maybe I just missed it) is a steering damper. This will help out IMO. I know tyler's yfzr could have used one when I rode it. But I will agree, riding that stock yfzr, I just felt more comfortable while riding it than I have on any banshee.


100% good info here but unfortunately, You don’t have many good options for a banshee without getting into fabricating something.

I’ve tried a stick type before and it worked fine in the winter, but faded within 10 minutes during summer heat. That isn’t TOO much of an issue because most MX classes below A-class run around 4-5 laps on 1:45-2:30 tracks. Couple that with the fact that most people can’t ride for more than 10 minutes at race pace and the issue almost goes away.

I run a Precision Elite on my YFZR because it is about the best you can get. The issue is that they’re around $550, but they’re something I’d put on my top 5 list for sure. Since switching to it, I’ve grazed trees hard enough to tear knobs off the tires a few times and have never had the handlebars yanked from my hands. It feels the same after 30 minutes as it does when you just roll out.


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And just out of curiosity I want to get opinions on wheel spacers. I pulled my front tires yesterday and found stud extensions and wheel spacers. I don't like the idea. But am curious on how they would hold up.
They wont. They are not good for anything. If you want wider, use a-arms. Spacers will increase arm pump from hitting bumps.

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