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Yep, this is what my 2017 MX came with as well, in the same box as the charger, minus the air pump, of course.

Here you go: https://altaownersforum.com/threads/alta-redshift-mxr-and-mx-on-a-dyno-riding-maps-demystified.158/page-2#post-1658

I have added a 14/45 sprocket combination. It is initially similar to running in the stock Map 2, only with way more power above 28mph. Whole 15hp more at 45mph! Not a bad combination at all. ____ Power MXR Map 4 with stock 12/53 sprockets ____ Power MXR Map 3 with stock 12/53 sprockets ____...

There have been articles about the MXR, EXR and SMR like the ones below since January of this year: http://www.motorcycle.com/manufacturer/alta-manufacturer/alta-motors-to-produce-r-versions-of-redshift-mx-ex-and-sm.html...

Maybe this is why the Alta feels so teeter-tottery in the whoops compared to other bikes? I rode a 2016 Factory Edition KTM 450SXF yesterday, and while it felt very top-heavy, slow (for my skill level), and not as exciting as the Alta, it stayed dead level through all the whoops and bumps.

It will feel slower only at speeds below 35mph. Which is not a big deal because most of us seem to prefer slower maps at low speeds anyway. After that it will feel faster. And you will gain some top speed, in case you need it. You will be able to use more of the bike's power if you ride in Map...

I was initially considering going the other way, but I am glad it is all making sense to me now. If you install a 14/45 gearing, it will feel like Map 2 at low speeds and like Map 4 at high speeds. And you will have even more power at 50mph and above. Anyone wants to see what a 14/45 gearing...

LOL! I must have done something un-admin-like more than once to deserve this kind of feedback. I should start adding smiley faces to those messages where I am not dead serious.

My apologies. I am sorry if this came across wrong, or condescending, or stating the obvious. I was driving from a MX track and just wanted to give you a quick answer to the question that you asked. Perhaps my message was curt, or I did not use the right words. Sorry about that. I didn't mean...

Thanks for sharing, Chris. I had no idea you were as deep into all this Alta stuff as we are. It's great to have you on our side!

LOL! I keep reminding everyone not to blip the throttle when the bike is stationary.

I think he spoke the truth about the many consequences. If we hack the throttle we can start making our own riding maps. I want a map that starts as Map 2 but ends as Map 4 at higher speeds. The drop-off in torque at 25mph is annoying. This is what is causing the tired right wrist and the...

It is a 2009 CRF450 fender. Why would it perform any differently on an Alta? Mine works fine. Check the four bolts of the mounting bracket that holds the front of the fender.

I just realized that this advice is coming from a guy who installed a 14-tooth front sprocket to make his 4th gear usable. Good job figuring this out, BTW!

Cone valve forks, but an original MXR rear shock. LHRB with the rear brake pedal still retained. The sticker on the steering column says Alta MXR 2018.

Lyndon Poskitt: "Got the rear shock all revalved, ready to go..." Hehe.

Now tell us how an SM handles at a MX track! :p

Awesome, Mark!!! I was not fully serious when I recommended to ask for a loaner, but I am glad you did ask, and I am even more glad your dealer responded. This is simply awesome! GO ALTA!!! :ricky:

You could buy two MXRs and hide the second one somewhere in a swamp half-way. They are waterproof, you know. ;)