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One immediate mod i did... the fork needs more low speed compression damping, and ultimately more compression damping overall. As a quick and easy modification, i suggest changing the 6x 30.10 face shims on the base valve over to 5x 30.15 shims, and soak up the extra .15mm of total stack height...

Just for reference, here are the stock valve stacks for the AER48 on the MXR's. (In my opinion, it was way under-damped for anything more than easy vet style motocross tracks). All shims are 6mm ID. Synthax is [ShimDiameter(mm)].[ShimThickness(mm)] Topmost number is the piston facing shim...

Love the idea of this thread; put it all in one easy spot. (y) I think its just standard KTM equivalents. 2018+ should work.

www.fammx.com

Erzberg Firmware (MX/MXR) WARNING!!!!!!!!: This is based off the v1.4.1 of the MXR Firmware, which contains the bug where rolling the throttle forward causes the "Inverter Throttle Fault" and the bike shuts off. This could potentially be a dangerous situation for you. New in...

Yeah, Jimmy Hill has had his Alta just about as long as Josh Hill. Jimmy has crazy skill on a dirtbike. Worth a follow on IG. From time to time you'll see him bust his Alta out.

Nice story, Philip! My first time riding some MX's at a demo day at Milestone was September 7, 2017. My commentary speaks for itself. I was HOOKED! My first time switching the bike into Map 4 and I wasn't ready for the immediate snap of torque and lost it in a corner hahaha @Mark911 was...

SM Firmware New in SM 1.3.1: - prevent fault when rolling some throttles forward New in SM 1.3: - control 12V loads correctly during short-circuit events - improved isolation test logic - resolve isolation failures to inside/outside of charger - display warning for high humidity within battery...

EX/EXR Firmware New in EX 1.2.1: - prevent fault when rolling some throttles forward New in EX 1.2: - control 12V loads correctly during short-circuit events - support for additional R charger variants - improved isolation test logic - resolve isolation failures to inside/outside of charger -...

MX/MXR Firmware New in MX 1.5.1: - prevent fault when rolling some throttles forward New in MX 1.5: - support for metric units - support for additional R charger variants - improved isolation test logic - resolve isolation failures to inside/outside of charger - display warning for high...

Not that's a clever solution! But i actually enjoy being able to see my screen right infront of me instead of having to go look for it in a sense.

You using the two upper front number plate holes for the bracket? kinda like a cradle?

Thanks for the acknowledgement! More cool stuff is coming in the future :)

Its a 2009 CRF front fender.

You need to remove the screw. Hold on to the adjust knob so that just the screw rotates, not the knob.

@Fog 25 , are you racing Mammoth this year? its been on my bucket list and i think i'm going to do it this year. Probably 30B

You need at least 3600 running watts for the rapid charger. The B&S Q6500 is a great option. Regarding the HF generators, i had luck with my Predator 4000 for about 8 months or so and then it started acting up on me. I'm assuming because it only has 3200 running watts and the rapid charger...

Yeah, our Alta's are so good that they force us to race against 450's.

Rode a 2020 YZ250f yesterday. Really fun bike!

Yall should be careful using the erzberg firmware. It's based on older firmware that contains the "Throttle Inverter Fault" bug when the throttle is rolled forward a couple degrees. This can be dangerous as the bike loses motor power when this happens.