Here is a link to the best Sur Ron service manual I’ve found to date.


Dimension & Weight
Length: 1870mm 73.62 inches
Width: 780mm  30.7 inches
Height: 1040mm 41 inches
Min. Ground clearance: 270mm 10.6 inches
Wheelbase: 1260mm 50 inches

Seat Height 810mm 31.8 inches

Vehicle weight: 50kg 110.2 pounds
Weight distribution of Fr. Wheel axle: 24kg 52.9 pounds
Weight distribution of Rr. Wheel axle: 26kg 57.3 pounds
Max. load capability: 100kg 220.5 pounds

Forward inclining angle: 26°
Steering angle: 46°
Fr. Absorbers stroke: 200mm 7.87 inches
Rr. Absorber/Wheel stroke: 87/210mm 8.26 inches

Angle & Stroke
Performance & transmission
Max. motor rotation speed: 4500r/min
Cooling method: Air-cooled
Climbing ability: 35°
Range: 100km(@ 20km/h)
Max. torque: 200N.m
gearshift type and transmission ratio: 1:7.6
Transmission type: Belt + Chain
Belt brand and model: HTD 8M

Frame & Absorbers
Frame type: Aluminum alloy double cradles design
Fr. Absorber: Double-tube telescopic shock absorber
Rr. Absorber: Multi-link central shock absorber

Tires & Brake
Tire size (Fr.): 70/100-19
Tire size (Rr.): 70/100-19
Wheel type (Fr.): 19×1.4
Wheel type (Rr.): 19×1.4
Fr. brake type: Bilateral 4-piston hydraulic disc brake
Rr. Brake type: Bilateral 4-piston hydraulic disc brake

Electronic parts
Controller Type: 48/60V self-adaptable
ECU type: GPS Data connection
Horn: European standard horn
Charger type: Constant current & voltage 58.8V-5A
Battery specs: 51.8V25AH Battery specs
Headlight type : German standard bicycle headlight(v)(w)(mm)
Brake lamp/tail lamp type: German standard bicycle tail lamp(v)(w)
USB Power source: USB-2.1A single socket
single socket: IBN negative display dashboard

Battery size 14.5″x6.4″x5.5″
Battery weight 24.5lbs

420 CHAIN WITH 1/2″ PITCH (NO “O” RING) on the standard LightBee (LB)
420 GOLD CHAIN WITH 1/2″ PITCH “O” RING on the LightBee “X” (LBX)
104 links 42T
106 links 48T
TBD links 48T + pedal kit
108 links 52T
110 links 54T
112 links 58T
114 links for 60T
O’Ring chains will require a O’Ring compatible master link
If you have the pedal kit installed, you need one extra link.
Belt drive model: Contitech HTD 560 8M, 15mm wide

Bolt sizes and torque settings


  1. Thanks for this Mark First time I’ve seen all the actual specs

    • You bet Blane. Thanks too for letting me know it helps you. Makes doing this worthwhile.

    • any videos to mounting o-ring chain?
      received my light b x w/added pedal kit and I’m wondering if i can remove the pedal kit and install the o ring chain included without much effort. two rides in and i want to leave the pegs for a while without spinning the pedal kit bb spindle needlessly.
      seems ideal, then if I want to mount the pedal kit again I go back to the standard chain.
      amazing work on your site! your build and comments on quality of the manufacturing were major reasons that led me to buy. Thank You!

      • Hi Adam and welcome to the Sur Ron addiction! LOL Changing over to an O ring chain is no different than your non O ringer. On my Specifications page you can see how many links are needed depending on your sprocket size. If you need to remove links on my Gear I Use page I have the chain breaker I use there along with the O ring Master Link I’ve purchased. Hope this helps you.

  2. 107 links 48T + pedal kit, this must be wrong, the chain can not have an odd number of links

    • Thank you for pointing this out Roger. I obtained the information from the online resource supported by Luna here. I have removed the pedal kit link count from my site. Once I actually count it myself I will repost the correct link count. Thanks again.

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