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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, especially the fork bolts on the crowns to hold the fork legs in place.

    Be careful when removing the axle lock nut, it's reverse threaded so turn clockwise to remove, if you turn the other way around the bolt will snap without much force.

    If you loose or break it you will have to source it on the web, we do not have replacements for these yet and will not offer any refund on these.

    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 the chain tension, you should be able to move it up and down half a inch up to an inch, if it's too tight you will put too much tension on the drive train and also it will not ride as smooth. Too loose and the sprockets will wear off faster, way too loose and you can lock up your wheel while riding (not fun at 40mph). There are many video on YouTube on how to adjust your chain and check tension.

    Check tire pressure, make sure the brakes are 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.
    • For a hydraulic bleed kit this will work (The hydros use mineral oil)



    The Rear shock is a Fast-Ace BDA53RC. It has rebound & compression adjustments. Pre-load is done by adjusting the spring.
    Click image for larger version  Name:	Screen Shot 2018-08-14 at 11.56.01 AM.png Views:	1 Size:	722.8 KB ID:	71578
    Click image for larger version  Name:	sideshock.jpg Views:	1 Size:	182.3 KB ID:	71798
    Latest shipment is upgraded to RST Killah fork for front, see our vid on listing for the differences
    Click image for larger version  Name:	image_10692.jpg Views:	2 Size:	129.5 KB ID:	71574

    There is a Sport and Eco mode
    Click image for larger version  Name:	sur ron.jpg Views:	1 Size:	111.3 KB ID:	55122

    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:	55123

    Top-down view of the bike and battery.
    Click image for larger version  Name:	batt.jpg Views:	1 Size:	124.6 KB ID:	55133Click image for larger version  Name:	lightled.jpg Views:	1 Size:	168.3 KB ID:	55134

    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
    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. If your bike is slow please look at the troubleshooting guide here

    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.



    VIDEOS
    Unboxing and assembly How to install the pedal kit
    Teardown and review Comparison of fork options
    Range Test Comparison of sinewave controller to stock
    Sur Ron "X" Controller Install Street Legal Sur Ron? (How-To Guide)


    SPECIFICATIONS
    • LENGTH: 1870mm
    • WIDTH: 780mm
    • HEIGHT: 1040mm
    • SEAT HEIGHT 800mm
    • MINIMUM GROUND DISTANCE: 270mm
    • WHEELBASE: 1260mm
    • WEIGHT: 50kg
    • FRONT AXLE MASS DISTRIBUTION: 24kg
    • REAR AXLE MASS DISTRIBUTION: 26kg
    • MAXIMUM LOAD WEIGHT: 130kg
    • Battery size 14.5"x6.4"x5.5"
    • Battery weight 24.5lbs
    • CHAIN TYPE: 420 WITH 1/2" PITCH (NO "O" RING)
    • WITH 48T RING YOU HAVE A 106 LINKS CHAIN
    • 104 links 42T
    • 108 links 52T
    • 112 links 58T
    • 112 links for 60T
    • IF YOU NEED A MASTERLINK GET ONE FOR A 420 CHAIN

    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
    • BRAKE PADS: Shimano BR Models: Saint M810, Saint M820 ZEE M640





    For Official Sur-Ron manual click here




    FAST ACE FRONT SUSPENSION MANUAL

    The Fast-Ace axle end bolts are hard to get if you loose them , they are M14x1.5 and thread length is 25mm.

    Make sure to buy a Grade 12.9 bolt to make sure you get a hard bolt. eBay has a fantastic selection of nuts and bolts
    if needed.
    For more info on the nuts and axle please see this link




    Sur-Ron Replacement Parts

    For replacement parts for Sur-Ron click here



    For further info on troubleshooting, modifications, bleeding brakes, registration and other topics please click this link for the index of Sur-Ron knowledge base!
    Last edited by Rodney64; 06-25-2018, 08:57 PM.
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