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V2.0 

RUNGU Electric Juggernaut Owner Manual 

 2019 model year 

Copyright 2019 Standard Bearer Machines, LLC  

rungu

®

 electric juggernaut 

(mid-drive models) 
owner manual 

Congratulations on purchasing a Rungu Electric Juggernaut

1

!  You own the latest generation of the 

ultimate electric alternative to a Quad ATV for on-road and off-road fun. Before you ride and make new 
tracks, 

please read the following instructions carefully

.   

Standard Bearer Machines, LLC (Standard Bearer Machines) thanks you for your purchase! 

Electric Juggernaut uses the Bafang BBSHD mid-drive motor with a custom Rungu 52V (nominal voltage) 
input that generates more than 1.4kW of mechanical power for off-road use.  You access the power by 
pedaling 

(“Pedelec”)

 or pressing the thumb throttle.  

As a “Pedelec,” the 

Electric Juggernaut senses 

when you start to pedal and engages the motor to assist your pedaling - 

you don’t have to use the 

throttle if you don’t want to.  

The amount of power assist varies based on the power level you select as 

you ride. The Electric Juggernaut has five selectable power levels starting with barely any assist up to full 
power, which is intended for use off-road only.  The power settings are discussed below. 

Note: US Federal Law mandates a 750W/20 MPH limit for riding an e-bike on public roads without a 
license. Please check with your local government to ensure you follow all local laws and ordinances. 
Standard Bearer Machines are not liable for those who choose not to follow their local laws.  

CAUTION: STANDARD BEARER MACHINES WILL NOT BE HELD RESPONSIBLE FOR PEOPLE WHO CHOOSE 
TO DISREGARD THE LAW! 

WARNING: IMPORTANT- STANDARD BEARER MACHINES WILL NOT BE LIABLE FOR ANY DAMAGE OR 
INJURY THAT MAY OCCUR DUE TO OPERATION OF YOUR ELECTRIC JUGGERNAUT. BY USING THE 
ELECTRIC JUGGERNAUT, YOU ARE AGREEING TO STANDARD BEARER MACHINES TERMS AND 
CONDITIONS AND THE WARNINGS AND CONDITIONS OF THE GENERIC BIKE MANUAL WHICH ARE 
INCLUDED WITH OTHER FILES IN THE USB KEY ACCOMPANYING THE ELECTRIC JUGGERNAUT. 

 

 

                                                           

1

 

As the owner, you agree and are bound by all sales and transfer conditions as defined in “

SBM Rungu Sales Terms 

and Conditions US 2019.

” Copies of these documents are available on the USB document drive that ships with the 

product or upon request by e-mailin

[email protected]

. 

 

Summary of Contents for Juggernaut1

Page 1: ...s five selectable power levels starting with barely any assist up to full power which is intended for use off road only The power settings are discussed below Note US Federal Law mandates a 750W 20 MP...

Page 2: ...Depth 43 Battery Failure Response Procedure 44 Operating Electric Juggernaut 45 Charging Your Main Battery Single battery units Standard HC 45 Charging Dual Batteries Dual Battery Units Overland Rubi...

Page 3: ...Care 74 Before Each Ride 74 After Each Ride 74 Battery Care 74 Storage When Not Using Electric Juggernaut for Periods of Two Weeks or Longer 74 Prolonging the Life of your Battery Best Practices 75 M...

Page 4: ...ual 2019 model year Copyright 2019 Standard Bearer Machines LLC 4 Electric Juggernaut parts identification The following images show the names of various components on the Electric Juggernaut Figure 1...

Page 5: ...V2 0 RUNGU Electric Juggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 5 Figure 3 Steering assembly view Figure 4 Parking Brake View...

Page 6: ...RESULT IN ACCIDENTAL RIDER INJURY OR DEATH Before you ride and make new tracks please follow the assembly instructions carefully The team at Standard Bearer Machines recommends that you have the assem...

Page 7: ...straps remove the top cover If you intend to ship or return your Rungu please keep all packing materials 2 If you have purchased a model with a Rungu Cargo Rack HC Overland Rubicon Trail Edition or an...

Page 8: ...t stands upright as it was in the carton CAUTION ELECTRIC JUGGERNAUT FRAME AND REAR WHEEL WEIGH 68 LBS 31 KG USE TWO 2 PEOPLE TO REMOVE THE ELECTRIC JUGGERNAUT FROM THE PACKAGING TO AVOID INJURY 6 Rem...

Page 9: ...V2 0 RUNGU Electric Juggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 9 9 Insert the handlebar so that it extends at least 45 mm or 1 past the inside of the stem...

Page 10: ...r Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 10 10 Fasten but do not tighten handlebar retention screws 11 Remove the left handlebar retention screws allowing the left side lin...

Page 11: ...anual 2019 model year Copyright 2019 Standard Bearer Machines LLC 11 12 Place the left side handle bar such that the display support bridges the stem Take care to make sure the display and control cab...

Page 12: ...Juggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 12 13 Then replace the left side linkage arm and the handlebar retention screws Fasten but do not tighten the handle...

Page 13: ...5 mm or 1 past the stem 15 Tighten both sets of handlebar retention screws so that you can still rotate each handlebar and slide the handlebar inside the stem 16 Rotate the handlebars so that each sid...

Page 14: ...READS IN STEM LEADING TO INSUFFICIENT TIGHTENING OF THE HANDLEBAR FAILURE TO TIGHTEN HANDLEBAR SUFFICIENTLY MAY RESULT IN UNEXPECTED HANDLEBAR ROTATION THAT CAN RESULT IN ACCIDENTAL RIDER INJURY OR DE...

Page 15: ...ggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 15 20 Mount the left wheel to the left fork as shown in the two pictures below Be careful to slide the brake rotor bet...

Page 16: ...ggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 16 21 Mount the right front wheel to the right fork As with the left wheel make sure that the brake rotor slides betwe...

Page 17: ...del year Copyright 2019 Standard Bearer Machines LLC 17 22 Unscrew the retention nut from one of the quick release skewers and remove the associated conical spring 23 Insert the skewer into the left w...

Page 18: ...Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 18 24 Replace the retention nut and conical spring as shown below 25 Make sure that the quick release retention nut and lever a...

Page 19: ...begin to clamp when the lever points away from the wheel at a right angle WARNING MAKE SURE TO TIGHTEN THE QUICK RELEASE IN THE FORK SO THAT IT CANNOT FALL OUT OF THE FORK FAILURE TO ADEQUATELY TIGHTE...

Page 20: ...Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 20 29 Replace the retention nut and conical spring as shown below 30 Make sure that the quick release retention nut and lever a...

Page 21: ...elease lever once the wheel is mounted in the fork As a guideline the retention nut should begin to clamp when the lever points away from the wheel at a right angle WARNING MAKE SURE TO TIGHTEN THE QU...

Page 22: ...lectric Juggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 22 32 Remove the pedals from the box and install the left pedal first the left pedal is marked with an L as...

Page 23: ...crank arm in a counterclockwise motion the pedal uses a left hand thread For best results hold the threaded section of the pedal in the crank arm mounting hole and spin the entire crank arm in a cloc...

Page 24: ...V2 0 RUNGU Electric Juggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 24 26 Use a 6mm Hex wrench to tighten the pedal...

Page 25: ...al shaft into the right side crank arm in a clockwise motion For best results hold the threaded section of the pedal in the crank arm mounting hole and spin the entire crank arm in a counterclockwise...

Page 26: ...V2 0 RUNGU Electric Juggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 26 27 Use a 6mm Hex wrench to tighten the pedal...

Page 27: ...E TIRE AND PREVENT YOU FROM RIDING ELECTRIC JUGGERNAUT OVER INFLATION MORE THAN 15 PSI 103 KPA MAY RESULT IN TIRE BLOW OUT WHILE RIDING 29 Loosen the Seat Post Clamp by opening the lever Insert the se...

Page 28: ...anual 2019 model year Copyright 2019 Standard Bearer Machines LLC 28 Additional Installation Instructions mud flaps 1 Remove the mud flaps from packaging along with their screws and retention nuts Rem...

Page 29: ...r Copyright 2019 Standard Bearer Machines LLC 29 2 Align the mounting slot on the first mud flap with the back of the front fork Install the screw from the front of the fork as shown below 3 Thread th...

Page 30: ...Electric Juggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 30 4 Use an adjustable wrench to secure the nut 5 Use a 5mm hex wrench to continue threading the nut onto...

Page 31: ...achines LLC 31 6 Before fully tightening the nut slide the mud flap vertically until the bend in the mud flap rises just above the lip on the back of the fork as shown below 7 Adjust the mud flap to a...

Page 32: ...stallation Instructions Rungu Cargo Rack with or without range extending battery Note If you have a high bandwidth Internet connection click here to watch a video of these installation instructions 1...

Page 33: ...ner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 33 2 Place the rack over the rear tire making sure that the tabs at the bottom of the rack are on the outside of the metal rack s...

Page 34: ...h the fastening locations on the tab and thread the M8 screws and star washers through the tabs and into the rack supports on both sides Finger tighten the two screws 4 Align the front of the rack wit...

Page 35: ...with the screw on the mounting plate in the front CAUTION IF YOU HAVE THE RUNGU CARGO RACK WITH RANGE EXTENDING BATTERY AVOID PINCHING THE WIRE HARNESS BETWEEN THE RACK AND THE LEFT SIDE OF THE FRAME...

Page 36: ...he zip ties provided to fasten the wire harness to the rack in at least two places Keep the grommet above the zip tie locations Clip and remove the zip tie tails after you ve tightened the zip ties CA...

Page 37: ...7 Use the keys provided to open the access door to the rear battery and insert the end of the cable harness into the rear battery compartment through the hole provided in the side of the Cargo Rack 8...

Page 38: ...ut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 38 9 From the outside of the rack insert the grommet on the harness so that it covers the entire hole in the battery case an...

Page 39: ...he model Rungu or options you purchased First connect the largest connectors together this is the connection between the rear battery and the Rungu Battery Link so that the front and rear batteries wo...

Page 40: ...gu USB document drive that shipped with your Electric Juggernaut If you cannot find your copy of the All Purpose Bicycle Manual email support riderungu com and request an electronic copy WARNING THE E...

Page 41: ...he combination of power safety performance and life span compared to the other options available Each battery has a Battery Management System BMS built into the battery to protect you and the Rungu fr...

Page 42: ...our Rungu STOP IMMEDIATELY Turn off the Electric Juggernaut and inspect your battery system Check for a burnt smell and inspect there are no melted or shorted wires Shorted wires or a burnt smell indi...

Page 43: ...ging or excessive mechanical abuse Specifically mechanical abuse in the form of excessive shock or vibration can result in case deformation crushing and damage to the electrode materials WARNING NOT G...

Page 44: ...distance using a non contact thermometer or thermal imager If temperature monitoring equipment is not available keep the area evacuated and secure and do not handle the cell battery for at least 24 ho...

Page 45: ...try s power requirement On the back of your battery charger is an input voltage switch Check that the voltage switch is switched correctly for your voltage standard 110V refers to 110 120VAC 60Hz comm...

Page 46: ...ide Note At this point you can charge the battery inside the Main Battery Case or remove the battery for storage or charging elsewhere To remove the battery pull the battery forward and up Be careful...

Page 47: ...V2 0 RUNGU Electric Juggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 47...

Page 48: ...EVEN THOUGH THESE BATTERIES HAVE BUILT IN BATTERY MANAGEMENT SYSTEMS A BMS FAULT OR FAILURE MAY OCCUR IF YOU EVER NOTICE A BATTERY PUFFING STOP CHARGING THE BATTERY PLACE IT OUTSIDE ON CONCRETE A SAF...

Page 49: ...rge in fewer than 4 hours If it fails to charge please look at the troubleshooting section for further information NOTE You do not always need to wait for a full charge you may use your batteries at a...

Page 50: ...onnect the large connector to the motor connector inside the Main Battery Case and replace the battery inside the Main Battery Case opposite the way you removed it OTHERWISE disconnect the battery fro...

Page 51: ...sure not to pinch any cables or battery padding WARNING TAKE CARE TO PLACE THE CHARGING CABLE AWAY FROM THE LATCH TO AVOID DAMAGING THE CABLE AND SHORTING THE BATTERY BATTERIES FROM SHORTED CABLES AN...

Page 52: ...ual 2019 model year Copyright 2019 Standard Bearer Machines LLC 52 11 Use the same technique as in step 1 to hold the cover in place while using the key to close the latch 12 Remove the key from the l...

Page 53: ...s switched correctly for your voltage standard 110V refers to 110 120VAC 60Hz common to North America 220V refers to 220 240VAC 50Hz common to Europe and Asia If the voltage input switch is set incorr...

Page 54: ...Cargo Rack or remove the battery for storage or charging elsewhere To remove the battery lift the battery up from the front and lift the battery out of the Rungu Cargo Rack Be careful not to drop the...

Page 55: ...TO THE MAIN POWER CABLE 5 Plug the both charger plugs to the connectors shown above WARNING ONLY USE THESE CONNECTORS TO CHARGE EVEN THOUGH THESE BATTERIES HAVE BUILT IN BATTERY MANAGEMENT SYSTEMS A B...

Page 56: ...ould expect a full charge in fewer than 3 hours If the battery fails to charge or the light fails to turn red please look at the troubleshooting section for further information NOTE You do not always...

Page 57: ...ide the compartment OTHERWISE disconnect the battery from the charger Place all the cables inside the compartment and away from the door and key latch mechanism to avoid pinching cables when closing t...

Page 58: ...ear Copyright 2019 Standard Bearer Machines LLC 58 9 Lower the door over the battery 10 Use the same technique as in step 1 to hold the door in place while using the key to close the latch 11 Remove t...

Page 59: ...th handle bars and try to turn the steering The fork and wheel should flex but the handlebars shouldn t turn independently of the wheel you re bracing If the other wheel moves when you turn the handle...

Page 60: ...ach stop where the handlebar end contacts the linkage rod Look to see if the inside of the tire touches the outside of the neighboring fork If it touches STOP Follow the instructions in the assembly s...

Page 61: ...ant role in how you enjoy your Rungu Electric Juggernaut If you plan to ride mostly on soft ground like sand or snow use a tire pressure between 5 34 kPa and 6 PSI 41 kPa for best traction and control...

Page 62: ...nformation to operate your Electric Juggernaut For detailed instructions refer to the document Rungu Electric Juggernaut Mid drive Version Display User Guide which is available on your USB document dr...

Page 63: ...gu Electric Juggernaut Mid drive Version Display User Guide document in the USB document drive that accompanied your Electric Juggernaut Center Dial Speedometer and power meter In the center of the di...

Page 64: ...ctric Juggernaut Mid drive Version Display User Guide manual you can find in your USB document drive or on line at this link Toggling the optional Rungu E Light on and off If you have the Rungu E Ligh...

Page 65: ...ng a PIN code at power on Using the Display setting Password set a four digit password for powering Electric Juggernaut The next time you power Electric Juggernaut the Display will require you to ente...

Page 66: ...ears first gear has the largest sprocket on the rear wheel tenth uses the smallest First gear has the lowest gear ratio between the motor and the rear wheel This gear is used for hill climbing or cros...

Page 67: ...er level Using the shifter on the right handlebar you can change the Electric Juggernaut gearing Electric Juggernaut has ten gear ratios or speeds In the highest gear smallest cog the standard ratio i...

Page 68: ...Y RESULT IN A BROKEN CHAIN BENT CASSETTE COGS OR BOTH THE ELECTRIC JUGGERNAUT USES A CHAIN DESIGNED FOR THE OUTPUT OF THE MOTOR HOWEVER REPEATED GEAR CHANGES AT THE HIGHER POWER LEVELS GENERATES VERY...

Page 69: ...ER DAMAGE TO THE CASSETTE DUE TO WEAR OR LOADING New 10th speed cog Same cog after three miles of heavy operation using power level 5 Note tooth damage In the Display Settings you can also change the...

Page 70: ...ed periods of time the engine won t last long Do not abuse your system and it will last you a long time 2 DO NOT operate in excessive heat over 100 degrees Fahrenheit for a prolonged period of time Do...

Page 71: ...chain life Riding Safety Follow these guidelines to improve your safety when riding Electric Juggernaut 1 ALWAYS wear proper safety equipment 2 NEVER operate at speeds that exceed your ability to ope...

Page 72: ...Juggernaut makes cornering on hard surfaces smooth and improves control on soft sand Under some circumstances such as when the rear wheel drifts sideways in very soft sand the suspension may make it d...

Page 73: ...lifting the tab covering of the outlet and inserting the appropriate 12VDC charger connector Charger connectors that fit in a car work in the 12VDC outlet CAUTION THE OUTLET IS LIMITED TO 10A OF OUTPU...

Page 74: ...r next ride CAUTION IT IS IMPORTANT THAT THE BATTERY CHARGER GETS AIR FLOWING OVER THE HEATSINK AND IS OUT OF DIRECT SUN TO AVOID OVERHEATING OR BATTERY FAILURE WARNING NEVER CHARGE BATTERIES AT TEMPE...

Page 75: ...n its case If you notice wear marks on the battery casing Use duct tape to cover the wear marks and add padding in the wear area packing foam is fine 2 Check spokes on all three wheels The electric wh...

Page 76: ...riodically updates these links if you cannot find information you need send an email to support riderungu com Securing your Electric Juggernaut When riding the Electric Juggernaut in areas where theft...

Page 77: ...model year Copyright 2019 Standard Bearer Machines LLC 77 Technical Information Default Display Settings Units Imperial Brightness 100 MAX PAS 5 Auto Off 2 minutes Power View Power SOC View Trip Rese...

Page 78: ...V2 0 RUNGU Electric Juggernaut Owner Manual 2019 model year Copyright 2019 Standard Bearer Machines LLC 78 Performance Electrical...

Page 79: ...are having trouble charging the battery please look below about charging your battery 5 If none of the proposed solutions work contact Rungu Problem I drove my Electric Juggernaut until it went comple...

Page 80: ...ctric Juggernaut continues to work The speed sensor has become unattached from the motor controller or the detector magnet has fallen off or fallen out of alignment with the sensor This can happen aft...

Page 81: ...wheel and while operating the pedals with your hands use the shifter barrel adjustment to re align your derailleur If this fails to eliminate the clicking noise 2 Check that the derailleur derailleur...

Page 82: ...thering to raise the rear wheel and while operating the pedals with your hands try to shift into first gear If the derailleur stops or has difficulty moving the chain into first gear clean and lubrica...

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