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    Originally posted by EL34 View Post

    It's time to get Luna to warranty the motor.
    Contact them to see how they want to proceed
    I have seen them do motor swaps with customers before
    That’s what I was afraid of. Thank you for your help!

    Comment


      Originally posted by Musky View Post
      Have the stock Luna X1 display and the mileage is off by around 30% over actual. Unable to reset wheel size on the display. Was considering the new 860 color display but only if wheel size is adjustable. Anyone know if it truly adjustable on the color display? Description video by Luna shows it being adjustable.
      No, the 860C is locked at 27.5
      On my X1, if I multiply the meter mileage and 0.96, that is closer to the real mileage
      I set up an old school meter and entered my wheel circumference into it to try and find out what the mileage correction formula is

      You can see my results here
      Check out the last page
      https://electricbike.com/forum/forum...-other-x1-mods

      Comment


        Originally posted by Phredn3ck View Post

        Interesting input on the grease, what type would you reccomend? I have considered a Marine wheel bearing grease but haven't tried it.
        Oh no! A wise man once told me "Never make recommendations on religion, politics and lubricants! ...and not necessarily in that order!" :)

        Here are some studies to consider, though:

        https://www.ecllube.com/resources-fo...20Plastics.pdf

        Key points:

        - These PEEK gears should be compatible with most any lubricant formulation mineral, synthetic, silicone, etc (p. 5)
        - Chart on p.7 highlights the various grease thickeners vs which properties they perform best/worst. Of particular note, bentonite - the thickener in mobillube 28

        Another study -
        https://www.sciencedirect.com/scienc...94114X19308341

        Key points
        -Lubricated PEEK gear experienced a 1.23x lifetime increase over a nonlubricated(!) gear. (So it seems while an ideal grease can get you a small increase in life, an improper grease could actually reduce the life vs a no grease at all.)

        I have also noted a few studies (sorry, no link handy) which recommend against molybdenum and graphite additives in grease for plastic gears. They claim the moly/graphite can actually diffuse into the plastic, weakening it.

        So take a glance at the studies, decide what characteristics and factors are most important for the way you ride and seek grease accordingly!

        [edit]PS - warning on over-greasing:
        When it comes to regreasing bearings, more is not always the better option and actually can be a costly mistake. Instead, greasing should be set on a frequency with proper calculations used to...

        Comment


          Originally posted by Musky View Post
          Have the stock Luna X1 display and the mileage is off by around 30% over actual. Unable to reset wheel size on the display. Was considering the new 860 color display but only if wheel size is adjustable. Anyone know if it truly adjustable on the color display? Description video by Luna shows it being adjustable.
          As EL34 notes, the error is usually in the low single digit percents. If you're seeing 30% - especially 30% low - you might take a look to make sure the speed sensor is aligned, connections are tight, and no wires are cut/pinched, etc. You might be getting intermittent 'counts' of the sensor causing it to be exceptionally low.

          Comment


            New mileage record today on my X1

            Non Ludi X1 with throttle removed
            40 tooth chain ring

            PAS 1 of 9 - 97% of the ride
            PAS 2 of 9 maybe about 2% of the ride
            PAS 3 of 9 maybe about 1% of the ride

            I was not sure how long this ride was so I used as little PAS as I could

            GPS said 36.92 miles - that's low
            X1 meter said 41 miles miles - that's high
            Actual mileage was 38.59 miles using a meter with actual wheel circumference entered

            Starting voltage was 53.9 volts
            Ending voltage was 47.2 volts

            It works out to X1 meter mileage x .95413 = today's actual mileage

            Click image for larger version

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            Attached Files

            Comment


              what do you think about coil shock on the back and double crown fork on the front ?
              can this luna x1 handle that much stress ?
              It would nice to find / build cross country - downhill capable machine with electric assistant.

              Comment


                Used a GPS to check my mileage accuracy on my X1. I need to multiply my mileage by .65 to have it correct. Speed is only of by about .5 miles per hour. Very strange with no possible adjustment. Everything else works fine and love the bike, just wish there was a way to correct this error.

                Comment


                  Originally posted by Musky View Post
                  Used a GPS to check my mileage accuracy on my X1. I need to multiply my mileage by .65 to have it correct. Speed is only of by about .5 miles per hour. Very strange with no possible adjustment. Everything else works fine and love the bike, just wish there was a way to correct this error.
                  GPS is not even close to being accurate.
                  I doubt that .65 is the correct amount
                  Did you see my post and how far off GPS was compared to X1 and real meter with tire circumference?

                  Comment


                  • Dave Mc Gregor
                    Dave Mc Gregor commented
                    Editing a comment
                    Can you give me the link for your carbon wheel set from Ali express? Thanks.

                  • Musky
                    Musky commented
                    Editing a comment
                    The .65 correction was determined in an open area on a relatively straight route using a GPS. Also was riding with a friend who confirmed the mileage on his bike.

                  Originally posted by K442 View Post

                  Oh no! A wise man once told me "Never make recommendations on religion, politics and lubricants! ...and not necessarily in that order!" :)

                  Here are some studies to consider, though:

                  https://www.ecllube.com/resources-fo...20Plastics.pdf

                  Key points:

                  - These PEEK gears should be compatible with most any lubricant formulation mineral, synthetic, silicone, etc (p. 5)
                  - Chart on p.7 highlights the various grease thickeners vs which properties they perform best/worst. Of particular note, bentonite - the thickener in mobillube 28

                  Another study -
                  https://www.sciencedirect.com/scienc...94114X19308341

                  Key points
                  -Lubricated PEEK gear experienced a 1.23x lifetime increase over a nonlubricated(!) gear. (So it seems while an ideal grease can get you a small increase in life, an improper grease could actually reduce the life vs a no grease at all.)

                  I have also noted a few studies (sorry, no link handy) which recommend against molybdenum and graphite additives in grease for plastic gears. They claim the moly/graphite can actually diffuse into the plastic, weakening it.

                  So take a glance at the studies, decide what characteristics and factors are most important for the way you ride and seek grease accordingly!

                  [edit]PS - warning on over-greasing:
                  When it comes to regreasing bearings, more is not always the better option and actually can be a costly mistake. Instead, greasing should be set on a frequency with proper calculations used to...
                  Thanks for the deep geek dive into lubrication, the old addage 'you don't know what you don't know' certainly rings true. Great reading!

                  Comment


                    Dave Mc Gregor

                    All my X1 info is here
                    https://electricbike.com/forum/forum...-other-x1-mods

                    Comment


                      Guys,
                      Why does the first post state that the bike has a "1,1/8" steerer"? I thought that the bike has a tapered steerer tube?

                      Comment


                      • paxtana
                        paxtana commented
                        Editing a comment
                        If someone can confirm I'll amend it

                      • bradleyland
                        bradleyland commented
                        Editing a comment
                        Can confirm it's a tapered steer tube. I haven't pulled the headset, but I believe EL34 is correct that it's a standard 1.125 x 1.5 headset.

                      • paxtana
                        paxtana commented
                        Editing a comment
                        Thanks, updated

                      Is anyone having temperature issues?
                      on +90 F degree days, I can get my motor to 150 F in about 20 mins. It then starts to step down power dramatically.
                      If I don't stop soon, it quits until it cools down to below 140F. Then it's fine again for a few minutes
                      Note:- I only ride steep singletrack.

                      Comment


                      • bradleyland
                        bradleyland commented
                        Editing a comment
                        Floridian here, can confirm that on hot days when the sand is deep, it's possible to hit the thermal limiter. There are two things I do to keep my motor under the thermal limit:

                        1) Gear down. This is the most important. I find that a difference of just one gear can mean the difference between hitting the thermal limiter and not noticing it at all. I have also noticed that the motor will start to cut power slightly prior to hitting the limiter, so if you notice power softening up, drop a gear.
                        2) Run 9 PAS levels. The PAS really kicks up at level 3/5. The same thing happens with 9 levels, but 3/5 = 0.6 and 5/9 = 0.555. It's a small difference, but I've noticed that when I run 5/9, I don't run into as many issues on hot days. I also try to limit my time above 4/9.

                        Of those two tips, gearing down is absolutely the big one. Keep in mind that the Ludicrous mod increases the controller output, but it doesn't change the motor's rating. You're still dealing with a lightweight motor designed for 500W nominal power.

                      Originally posted by mw195 View Post
                      Guys,
                      Why does the first post state that the bike has a "1,1/8" steerer"? I thought that the bike has a tapered steerer tube?
                      Yes it is a 1.125 x 1.5 headset


                      The first post says this which is misleading

                      1,1/8" steerer
                      31.8mm on the bars, with a length about 32"
                      Clamp on the stem is 31.8.

                      Comment


                        Originally posted by Mike Eatough View Post
                        Is anyone having temperature issues?
                        on +90 F degree days, I can get my motor to 150 F in about 20 mins. It then starts to step down power dramatically.
                        If I don't stop soon, it quits until it cools down to below 140F. Then it's fine again for a few minutes
                        Note:- I only ride steep singletrack.
                        No problems here but I don't ride in HELL

                        Comment


                          Originally posted by mw195 View Post
                          Guys,
                          Why does the first post state that the bike has a "1,1/8" steerer"? I thought that the bike has a tapered steerer tube?
                          I have replaced the lower bearing in my X1 headset
                          It is a your standard 1.125 x 1.5 headset

                          Comment

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