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    Sur Ron documentation

    Congratulation on purchasing a Sur Ron, at Luna we believe this is one of the highest quality ebikes to ever come out of China.



    Before you go out:


    The Sur-ron is preassembled but you should go over all the bolts before your first ride, specially pinch bolts on the fork to hold the 20mm axle and the bolts on the crowns to hold the fork legs in place. Move over to the rear and check if the rear axle is solid & suspension components are secured. Bolt handlebar onto the stem, taking care not to overtighten as this could strip the threads on the stem.

    Check tire pressure, make sure the brakes a working and that the fork and rear shock are adjusted to you. You can look on the internet on how to setup the forks and shock, FastAce is a known dirt-bike suspension manufacturer.

    Now charge the battery, Connect the charger to the AC wall outlet then connect the charger to the left side charge port on the battery. No worries the LCD on the battery will show a low charge but even when the gauge shows 0% there is still capacity left in it (like a reserve tank to limp back home).

    Now you can turn "ON" the DC breaker located next to the battery (under the battery cover). Turn the key ignition switch and lift the kickstand. And you are ready to go!


    And please wear a proper helmet (DOT full face dirt bike and goggles) and protection gear, this is a 45 mph fun bike and last thing we want is for you to get hurt!

    To change from KM/H to MPH please turn off the key switch and press the little red button beneath the display and hold while turning the key swtich continue to hold the button for 3 sec and release.




    Maintenance:
    It's an electric bike so not much with the motor and battery!

    Once every 60 miles or so (may depend on your use) it may seem a lot but this is a 45mph bike and the maintenance should not be any different than a gas dirt bike:

    Long term maintenance:

    The forks should get proper oil change (like any oil suspension forks & shocks), pivots inspected, all bolts and nuts inspected basically.



    FASTACE is the default suspension, both front and rear on latest models. The front uses inverted forks.
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    There is a Sport and Eco mode
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    Tire clearance
    Not much room for adding wider tires, maybe half an inch. On the rear you might need to dish the tire for added clearance, see pics below
    Click image for larger version  Name:	clearance.jpg Views:	1 Size:	144.5 KB ID:	55126Click image for larger version  Name:	rear3.jpg Views:	2 Size:	141.0 KB ID:	55124Click image for larger version  Name:	rear.jpg Views:	2 Size:	161.4 KB ID:	55123Click image for larger version  Name:	tire2.jpg Views:	1 Size:	112.0 KB ID:	55125

    Top-down view of the bike and battery.
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    A peek at some of the guts of the bike behind the rear shock, and the nice wire wraps on the phase wires where it exits the motor.
    Click image for larger version  Name:	innards.jpg Views:	1 Size:	125.3 KB ID:	55128Click image for larger version  Name:	wraps.jpg Views:	1 Size:	112.6 KB ID:	55132

    Right, left and front
    Click image for larger version  Name:	side2.jpg Views:	2 Size:	186.6 KB ID:	55130Click image for larger version  Name:	leftside.jpg Views:	2 Size:	174.2 KB ID:	55127

    Closeup of the optional pedal kit.
    Click image for larger version  Name:	pedalkit.jpg Views:	2 Size:	174.2 KB ID:	55131

    Operation and other notes:
    All the latest production bikes have no speed limiter on them. There is a green with black stripe wire loop on the bundle that loops near the battery monitor plug. This wire needs to be continuous and not cut. The battery also seems to communicate a limp mode when the state of charge is low, preventing total cutoff but keeping the cell voltages in a healthy position.

    Road salt and saltwater
    As with any electric vehicle, saltwater can be damaging as it affects the electrical conductivity of circuits which could short circuit. You should not expose to saltwater. To protect against this you can use dielectric grease on any electrical connector. It is an easy addition and recommended if exposing to water in general.



    Troubleshooting
    Trouble turning on: Make sure you turn the key and that it is charged. There is a breaker in front of the battery, breaker needs turned on before operating. There is also a kill switch on the kickstand so the bike wont start till you lift it up.


    Click image for larger version  Name:	2018-04-03 12_54_52.png Views:	1 Size:	363.2 KB ID:	61185

    Cutout: Check the ebrakes. The brake levers are designed to cut power if pulled. In some circumstances such as a crash this connector could come unplugged and the connector may cause intermittent cutout until plugged back into the lever. If you see a cutout, check the ebrake connector! If it is loose of comes out if you pull on it, add a couple drops of superglue to hold it in place.

    Awaking the Battery after Auto-Sleep mode:
    1. Connect the charger with the battery charging connection. And then, insert the charger plug into the socket of the power grid. This moment, the red and green indicators of the charger will alternately blink.
    2. Plug-out and Plug-in the charger plug (which is connected with the socket of the power grid) for one time. This moment, the red indicator of the charger will blink fast (0.5 second per time). The blink time will last to 20 seconds.
    3. After 20 seconds blink, the red indicator will be constant light for 10 seconds. During the 10 seconds, plug-out and plug-in the charger plug (which is connected with the socket of the power grid) for one time.
    4. After Step 3, the “Forced Charging” function of the charger will be turned on. Then, the charger will work normally.

    Click image for larger version  Name:	image.png Views:	1 Size:	1.22 MB ID:	61268

    Remarks:
    1. In Step 2, during the red indicator’s 20 seconds fast blink, please do not plug-out and plug-in the charger’s plug. Otherwise, you need to start the procedure again from step 1.
    2. In Step 3, the action to plug-out and plug-in the charger’s plug need to be finished during the 10 seconds, when the red indicator is constant light. Otherwise, you need to start the procedure again from Step 1.




    SPECIFICATIONS
    • LENGTH: 1870mm
    • WIDTH: 780mm
    • HEIGHT: 1040mm
    • MINIMUM GROUND DISTANCE: 270mm
    • WHEELBASE: 1260mm
    • WEIGHT: 50kg
    • FRONT AXLE MASS DISTRIBUTION: 24kg
    • REAR AXLE MASS DISTRIBUTION: 26kg
    • MAXIMUM LOAD WEIGHT: 130kg
    • CHAIN TYPE: 420 WITH 1/2" PITCH

    Click image for larger version  Name:	Screen Shot 2018-02-22 at 6.05.52 PM.png Views:	1 Size:	686.2 KB ID:	58581

    TIRES AND BRAKES
    • TIRE SPECIFICATIONS (FRONT): 70 / 100-19
    • TIRE SPECIFICATIONS (AFTER): 70 / 100-19
    • RIM TYPE (FRONT): 19×1.4
    • RIM TYPE (AFTER): 19×1.4
    • BRAKE TYPE (FRONT): to the four-piston hydraulic disc brake
    • BRAKE TYPE (REAR): to the four-piston hydraulic disc brake





    For Official Sur-Ron manual click here

    FAST ACE FRONT SUSPENSION MANUAL
    Last edited by Sebz; 1 week ago.

    #2
    How to install the pedal kit


    Comparison of fork options


    Teardown and review

    Comment


      #3
      The Rear shock is a Fast-Ace BDA53RC.

      Rebound & compression adjustments

      Pre-load is done by adjusting the spring.

      Click image for larger version

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      Comment


        #4
        For a hydraulic bleed kit this will work

        (The hydros use mineral oil)

        Comment

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