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  1. Don Thuren

    Sold 2018 MX with 330 Miles for Sale in Northern Utah! $10,600!

    What did you end up selling it for? Thinking of selling my matching 2017 MX pair just not sure what they are worth these days...
  2. Don Thuren

    Rear brake master cylinder mount. Has it been broken?

    You all that ordered so far will see tracking today!
  3. Don Thuren

    Rear brake master cylinder mount. Has it been broken?

    Alright everyone I have 30 of these kits boxed up and ready to ship USPS Priority mail! Sorry took so long moved my main business into a few facility and to say it was time consuming is an understatement. I'll work on instructions and stuff soon, but really, it's pretty self explanatory...
  4. Don Thuren

    Rear brake master cylinder mount. Has it been broken?

    Yes I have a bunch machined and done!!! I’ll put a little kit together here ASAP for purchase. I’ll update here when ready should be ready to rock this week!
  5. Don Thuren

    KTM65 Electric Conversion

    Been buried have not had time to dig into this thread and info, but just wanted to say, super freaking cool guys!
  6. Don Thuren

    Social Distancing, EXR style.

    Man those rocks look like they'd be so fun to play on!
  7. Don Thuren

    Following Stay-At-Home Orders

    I think it's time I get a rut track going in my yard.
  8. Don Thuren

    Little shock tune test video!

    Got my(amazing BTW!!!) MX Tech Lucky cartridges installed a few weeks ago, and they are SO good, they really made the OEM rear rear shock tune just feel even more terrible. Using Silkolene RSF 2.5 the first tune was too soft and rebound was too fast, so here is the 2nd tune to adjust. I'm...
  9. Don Thuren

    TCMB's Quest for Better AER48 performance - DIY Valving

    I think your quest for using a ring shim is the way to go. They are tricky, but I've used Restackor in the past to set them(on a bicycle rear shock) up with GREAT results. Being 1:1 I completely agree with your quest for less high speed damping/more blow-off, but too much LOW speed damping and...
  10. Don Thuren

    TCMB's Quest for Better AER48 performance - DIY Valving

    In the shock I like a softer spring and more damping.. Rear end squats on G-outs(more stable head angle), front stays higher braking(more stable head angle), easier to manipulate the attitude of the bike, and you can regularly put more weight on the front... PS: If you have not played with the...
  11. Don Thuren

    TCMB's Quest for Better AER48 performance - DIY Valving

    In the fork, more spring, less(specifically high-speed) damping, YES!!!!
  12. Don Thuren

    TCMB's Quest for Better AER48 performance - DIY Valving

    Small chop IS a very high speed event like you say. Hitting a 3" tall curb can get the IPS way high, but rebound plays a HUGE part as if the spring rate is low and the rebound speed low, the front tire is not shooting out to grab the next bump... If a single square edge impact is pretty smooth...
  13. Don Thuren

    TCMB's Quest for Better AER48 performance - DIY Valving

    Thanks for doing this! I just did my second retune on my stock 2017 MX shock. I'll make a thread too once done! EDIT: On your comment regarding air pressure(spring force) in the fork... In my opinion ESPECIALLY for Motocross/track suspension, the springs themselves front to rear need to...
  14. Don Thuren

    Post your Miles/Hours

    At first I found the Alta a bit weird, but now it's all I want to ride. Especially as i get the suspension dialed and better tires etc on it. I think the factory suspension is pretty far off, and it really hurts the first impression/confidence etc..
  15. Don Thuren

    Jeff Walker rode my EXR!

    THAT WAS SO GOOD! 4min in and destroying people and blasting the horn hahhaha!!!
  16. Don Thuren

    Withdrawn REDSHIFT MX - 23 Miles - As New

    Nope I have it sitting in my garage! :)
  17. Don Thuren

    Re-springing a 2017 Alta Redshift MX (and then revalving too)

    Took my MX shock apart today from vin 0039 just adding to the wealth of info on this forum. Have not compared notes to Philips specs yet just noting for possible redundancy... I note my valving in a way that makes it easy to visualize. Should make sense here is my notes below. Main piston nut...
  18. Don Thuren

    MXR Stock AER48 Valve Stack

    I have a different definition technique regarding damping terms compared to most.. Again, just my way of tuning/thinking. Low speed damping = Free bleed Low-mid X-over damping = Any staged valving/transfer shims/flutter Mid speed damping = Larger face shims and/or the middle of the pack High...
  19. Don Thuren

    MXR Stock AER48 Valve Stack

    Awesome thanks!
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