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Xiaomi M365 Electric Scooter Repair Guide

 

Outline


 

Specifications & Torque specs        

Safety Inspection        

Quick Repairs                   

Throttle Alignment        

Brake Lever Replacement        

Steering Tension Adjustment        

Handlebar Alignment        

Spin Handle (360) Replacement        

Front Fork & Fork Cover Replacement

Front Wheel & Mudguard Removal        

Front Tyre & Tube Replacement        

Kickstand Replacement              

Rear Tyre & Tube Replacement        

Rear Mudguard Replacement        

Brake Caliper Replacement        

Disc Rotor Replacement        

Centring The Rotor        

Brake Adjustment

Front Wheel & Motor Replacement

Control Cable Replacement

Brake Cable Replacement

Safety

Troubleshooting         

 

 

 

 

Specifications & Torque specs


 

 

Item

Location

QTY

Tool/Size

Tyre Pressure

Front / Rear

55 PSI

Tyre Gauge

Set Screw; Throttle

Head

1

Allen/3mm

Brake Lever Pivot Nut

Head

1

Spanner/8mm

Collar Bolts

Neck

4

Allen/5mm

Neck Bolts

Head

4

Allen/3mm

Steering Tension Bolt (Inside collar)

Neck

1

Allen/5mm

Set Screw (Inside Collar)

Neck

1

Allen/3mm

Front Wheel Cap Screws

Front Wheel

8

Allen/2.5mm

Front Wheel Nut

Front Wheel

2

Spanner/18mm

Front Mudguard Mounting Bolts

Front Wheel

4

Allen/ 3mm

Kickstand Mounting Bolts

Chassis

2

Allen/4mm

Rear Wheel Cap Screws

Rear Wheel

4

Allen/2.5mm

Rear Wheel Mounting Bolts

Rear Wheel

2

Allen/4mm

Rear Mudguard Bolts

Chassis

3

Allen/2.5mm

Brake Cable Clamp Bolt

Rear Wheel

1

Allen/4mm

Caliper Mounting Bolts

Rear Wheel

2

Allen/4mm

Rotor Mounting Bolts

Rear Wheel

5

Allen/3mm

 

Safety Inspection 


  Objective

  • In the interest of safety, the most important part of a quality repair happens before the repair has even begun. A quality diagnosis of the vehicle's faults and flaws is a quintessential part of being a mechanic. Making sure CityBots are safe, and operationally consistent for users starts with a quality inspection performed upon every repair. 

Tools Needed

  • 3mm Allen
  • 5mm Allen
  • Tyre Pump

                                 

 Throttle 

  • Ensure throttle snaps back with ease and there is enough gap between throttle and grips. 

 

360 Inspection

  • Ensure the bars stop when they are supposed to, by turning all the way to the left and all the way to the right. Bars should not spin 360 degrees.

Bell 

  • Make sure there is a gap next to the brain; functions properly.

Brakes

  • Brakes should start feeling firm when you pull, and not reach down to the grip.

Neck

  • Inspect torque on the four 3mm Allen screws.  

Collar

  • Ensure proper torque on the four 5mm Allen bolts on the collar.

Grommets

  • The grommets are numbered 1 to 4 on the back of each piece.
  • Make sure all 4 grommets are on the scooter and installed properly.

Tyres

  • Check tyre pressure on the front and rear tyres.
  • Inspect the direction of rotation on both tyres.

Reflector 

  • Assure reflectors are in place and not damaged.

Cable Routing  

  • check cable routing and make sure cables are not pulling more on one side as well as kinks.

Grip Pad

  • Check Grip pad for any tears or peeling on the edges.

Charging Port 

  • Inspect the charging port for damage or any debris.

Wheels

  • Make sure the wheels rotate with no drag.
  • The rear wheel should not be dragging on the rotor.

 Kickstand

  • Check kickstand operation, make sure the kickstand opens and closes properly. 

 

Quick Repairs 


Reflector 

  • The reflectors are stickers which can easily be replaced. Please ensure the reflector fits firmly into the groove.
  • To get the reflectors off, use a blade or pliers on the corner of the reflector and pop it out.
  • When removing older reflectors, make sure you remove the sticker and plastic backing. Sometimes the plastic backing may get stuck in the groove, so please be aware and ensure both are removed.

 

 

 Grommets

  • The grommets are numbered 1 to 4 on the back of each piece.
  • The top grommet is number 1, the middle grommet is number 2, and the two on the bottom are numbers 3 and 4.
  • Make sure the holes of the grommets are going in a downward motion, which means the cables can go through the grommet during installation.  
  • Insert one side of the grommet lip into the hole, then force the other side in to ensure a tight seal.
  • Press in firmly around the grommet to make sure it is fully sealed all around.

 

Grip Replacement

  • Grips can be removed by simply pulling off.
  • Grips are directional - make sure you install left and right grips accordingly.
  • "R" & "L" marks on the inside of the grip will identify Right or Left grip.

 

Decorative Cover Replacement

  • There are a total of 4 decorative covers on M365 models, 2 on the front wheel and 2 on the rear wheel.
  • Remove reflector with razorblade first.
  • Remove 2.5mm screws.
  • Reflectors can be reused only if they are still in good condition.

 

Charging Port Waterproof Cover Replacement

  • Remove two Phillips screws on charging port.
  • Do not pull the port once the screws are removed - simply slide the waterproof cover behind the charging port.
  • Align the two holes with the threads on the chassis and tighten the port down. 

 

Throttle Alignment


  Objective

  • Throttle alignment is key to the performance and safety of a vehicle.

Parts Needed

  • None

Tools Needed  

  • 3mm Allen

 

 Repair Process

  • Underneath the throttle, there is an access hole with a screw.
  • Slightly loosen the screw and slide the throttle over to ensure there is a small gap between the throttle and handlebar grip.
  • Once in the correct position, make sure you tighten the screw at the bottom of the throttle.
  • The throttle should freely spring back after engaged.

    

 

Brake Lever Replacement 


 Objective

  • Damages to the brake lever can vary but one thing is certain - once damaged, the brake lever should be replaced. Ranging from improper operation to physical damages to the lever, all situations indicate safety concerns and mean the lever should be properly replaced.

Parts Needed

  • Brake Lever 
  • Pivot Bolt 
  • Pivot Bolt Locking Nut
  • (2) White collars
  • Spring

Tools Needed

  • 8mm spanner

 Repair Process

  • Make sure to disconnect the brake cable before replacing the lever.
  • Remove the 8mm nut located below the lever.
  • Ensure both plastic collars and the spring from the old lever are switched over to the new lever. When installing the new lever, make sure you tighten the 8mm bolt.
  • The new brake lever should snap back when engaged. This means the spring is in the correct position. 

    

 

Steering Tension Adjustment


 Objective

  • Adjustment of steering tension is important to ensure the quality of vehicles, as well as offering a consistent product to riders. 

Parts Needed

  • None

Tools Needed

  •  5mm Allen

Repair Process

  • Remove the stem from the collar by loosening the 4 bolts using your 5mm Allen. Make sure you don’t damage the cables when removing the stem.
  • Loosen the 5mm Allen inside the collar enough so that the neck turns freely to the left and right. Make sure there is just enough drag so it feels nice and solid.
  • When placing the stem back, make sure there is a finger length gap between the collar and grommet #2.

  

 

 

Handlebar Alignment


  Objective

  • Adjustment of handlebar alignment, like steering tension, is important to ensure the quality of vehicles, as well as a safety issue that should be regularly inspected.

Parts Needed

  • None

Tools Needed

  •  5mm Allen 

Repair Process

  • Loosen the bottom 2 screws on the collar using the 5mm Allen. This will allow you to straighten out the handlebars.
  • Make sure you tighten the screws on the collar when finished.

   

 

 

Spin Handle (360) Replacement


  Objective

  • Steering and brakes are two of the biggest safety concerns on the M365 vehicle. The spin handle replacement can be caused by different issues that arise, so proper diagnosis is important before beginning repair.
  • Amounts of parts that are removed in the process of the repair are extensive so it is best to take pictures during the process. The organisation is key as well.

 

Parts Needed

  • 360 Tab
  • Bearing Kit

 

 Tools Needed

  • 3mm Allen
  • 5mm Allen
  • Hammer
  • Punch

 Repair Process

  • Loosen the 4 bolts on the collar and pull the stem out carefully to not damage the cables.
  • Loosen the centre bolt (same as steering tension bolt) and remove set screw while supporting the front wheel. (Set screw is the only thing holding the wheel at that point.)
  • Grab the bearing assembly before pulling out the fork assembly.
  • Bearing assembly order:
  1. Bearing
  2. Race
  3. Split collar
  4. Butterfly tab
  5. Plastic collar

 

  • Remove front wheel and fork assembly carefully to not stress wires.
  • Punch out the collar with the broken tab using your hammer.
  • Align the new collar and install with your hammer.
  • Make sure the new collar is flush with no gaps.
  • Reinstall the wheel and fork assembly with bearing assembly properly installed.
  • Hold the wheel up while tightening set screw to alleviate pressure on the screw.
  • Then, line up collar over the set screw.
  • Tighten 5mm steering adjustment bolt, check for proper tension.
  • Make sure there are no excessive gaps in pivot points.
  • Reinstall the stem and tighten 4 collar bolts to 10 ft lbs.
  • Inspect your work and make sure all fasteners are tightened.

        

     

    Front Wheel & Mudguard Removal


     Objective

    • Properly removing and installing the front wheel with appropriate torque on fasteners, and proper assembly of washers, etc. are critical in optimal safety as well as the performance of the vehicle.  

    Parts Needed

    • None

    Tools Needed

    • 2.5mm Allen
    • 3mm Allen
    • 18mm Spanner

    Repair Process

    • Peel off reflective stickers on decorative covers to access screws.
    • Remove 2.5mm Allen screws holding decorative covers. 
    • Remove 18mm nut.
    • Be careful not to damage the cable when removing the wheel.
    • Confirm the washer on each side of the wheel has tabs facing downward. Make sure they are always in the correct position.
    • Confirm the bolts holding front wheel are torqued properly.
    • 4 bolts holding front mudguard are only accessible when the front wheel is removed.
    • Inspect reflectors upon reassembly, decide whether or not they need to be replaced.

     

     

    Front Fork & Fork Cover Replacement


     Objective

    • Steering and brakes are two of the biggest safety concerns on the M365 vehicle. Bent forks can be caused by different issues that arise, as well as being mistaken for other issues. Proper diagnosis is important before beginning repair.  

    Parts Needed

    • Fork 
    • Fork Cover

    Tools Needed

    • 2.5mm Allen
    • 3mm Allen
    • 18mm Spanner

    Repair Process

    • Peel off reflective stickers on front decorative covers to access screws.
    • Remove 2.5mm Allen screws holding decorative covers. 
    • Remove 18mm nut.
    • Be careful not to damage the cable when removing the wheel.
    • Confirm the washer on each side of the wheel has tabs facing downward. Make sure they are always in the correct position.
    • 1 bolt holding front mudguard is only accessible when the front wheel is removed.
    • Loosen the 4 bolts on the collar and pull the stem out carefully to not damage the cables.
    • Loosen the centre bolt (same as steering tension bolt) and remove the set screw.
    • Remove the bearing assembly when pulling the fork out of the chassis.
    • Once removed, inspect the fork plastic cover. 
    • If the cover is damaged 2.5mm Allen screws holding the cover to the fork can be removed to replace the cover.
    • Installation is the same but in reverse. 

     

        

     

        

    Front Tyre & Tube Replacement


     Objective

    • Replacing tyres and tubes are important points of safety on an M365 model. Damaging tyres or tubes upon improper installation could ultimately cause premature wear and possibly serious injury. It is important to follow the steps properly to ensure quality repairs.

    Parts Needed

    • Inner Tube
    • Tyre
    • Valve Cap

     Tools Needed 

    • Two Tyre Spoons
    • Valve Core Remover

    Repair Process

    • Be careful to not damage inner tube with tyre levers.
    • Properly inspect the tyre and tube after removal to determine whether to replace the tyre, tube or both.
    • If you are having issues removing the tyre, getting the tyre in the centre groove of the wheel will help loosen the tension.
    • Ensure you remove the tyre opposite from the cable side.
    • Make sure the valve stem on the new inner tube is pointing to the RIGHT, and the direction of rotation on the tyre is correct before installation.
    • The direction of tread should point forwards.
    • Leaving new tyres under the sun before starting your repair is a good method to warm up the tyre for easier installation.
    • Be sure the tyre is inflated to 55 PSI after installing new tyre(s). Also double check for any leaking air.

     

        

     

     

     

    Kickstand Replacement


     Objective

    • Kickstand operation does not raise concerns of safety, but the appearance and basic operations of a vehicle are vital to providing a quality and consistent service.

    Parts Needed

    • Kickstand

    Tools Needed

    • 4mm Allen

    Repair Process

    • Should be done with the Scooter horizontal to ensure the plate does not move.
    • Make sure to snug both bolts before you tighten them down.  

     

       

     

      Rear Wheel Removal


     Objective

    • Properly removing and installing the rear wheel with appropriate torque on fasteners, and proper assembly of washers, etc. are critical to optimal safety as well as the performance of the vehicle.

    Parts Needed

    • None

    Tools Needed

    • 2.5mm Allen
    •  4mm Allen

     Repair Process

    • Make sure you inspect the order of the lock washer and flat washer before reinstalling the rear wheel.
    • Inspect reflectors upon reassembly, decide whether or not they need to be replaced. 

     

           

    Rear Tyre & Tube Replacement


     Objective

    • Replacing tyres and tubes is an important point of safety on an M365 model. Damaging tyres or tubes upon improper installation could ultimately cause premature wear and possibly serious injury. It is important to follow the steps properly to ensure quality repairs. 

    Parts Needed

    • Inner Tube
    • Rear Tyre

    Tools Needed

    •  Two Tyre Levers
    • Valve Core Remover

     Repair Process

    • Be careful not to pinch the inner tube.
    • Properly inspect the tyre and tube after removal to determine whether to replace the tyre, tube or both.
    • when wheel and tyre are removed - inspect side to side bearing play by pushing spacer back and forth (where the mounting bolts are installed). also, spin wheel in hand feels for a gritty tension, forward into bearing play, or hop (bent rim) and wobble.
    • If any of the above is noticed, the wheel should be replaced immediately.
    • Make sure the valve stem on the new inner tube is pointing to the RIGHT, and the direction of rotation on the tyre is correct as well before installation. The tread should be pointing forwards.  
    • If you are having issues removing the tyre, getting the tyre in the centre groove of the wheel will help loosen the tension.
    • Leaving new tyres under the sun before you start to remove the front wheel is a good method to warm up the tyre for easier installation.
    • Be sure the tyre is inflated to 55 PSI after installing the new tyre and double check for any leaking air.     

         

     

      Rear Mudguard Replacement


     Objective

    • The rear mudguard holds the rear running light and is important to ensure the safety of riders. All fasteners and the coupling should be placed properly.

    Parts Needed

    • Rear Mudguard
    • Rear Mudguard Screws
    • Rear Mudguard Screw Plugs

    Tools Needed

    •   2.5mm Allen 

    Repair Process

    • Remove 3 screw plugs.
    • Remove 3 screws.
    • Disconnect coupling between mudguard and rear wheel.
    • Be careful to not damage plastic tabs when disconnecting the coupling.
    • Notice the proper reassembly of the couplings to not damage anything.
    • Make sure rubber plugs are all in place upon reassembly.

     

          

     

     

    Brake Caliper Replacement


      Objective

    • Improper installation of brake callipers can result in brake failure, including countless other safety concerns. All steps should be thoroughly inspected before moving on.

    Parts Needed

    • Brake Caliper
    • Brake Cable End Grommet 
    • 2 Mounting Bolts

    Tools Needed

    •  4mm Allen

    Repair Process

    • Make sure replacement calliper is centred when installing.
    • Do not forget to crimp the holder back on to the end of the brake cable.
    • Adjust brake accordingly after installing.
    • The last step should be checking brake lever function.

     

           

     

     

     

    Disc Rotor Replacement


     Objective

    • Any part associated with braking has the potential to become a safety concern, including the disc rotor. Installation of the brake rotor must be followed step by step and tested. 

    Parts Needed

    • Disc Rotor
    • Rotor Mounting Bolts

    Tools Needed

    •  3mm Allen

    Repair Process

    • Make sure part number is facing UP, and arrows are following tyre tread when installing the new calliper.
    • After removing the wheel, remove all 5 bolts using your 3mm Allen.
    • When tightening the bolts, make sure to tighten down in a star pattern to ensure a flush rotor.

     

         

     

    Centring The Rotor


     Objective

    •  Centring the rotor is key in optimal brake performance and proper function, as well as maximising longevity of brake callipers.

    Parts Needed

    • None

    Tools Needed

    •  3mm Allen

     Centring rotor

    • Before adjusting the brake you want to make sure the brake calliper is centred to the rotor so the pressure is evenly applied from the calliper.
    • This also will help prevent rotors from bending in the future.
    • By loosening the 4mm Allen bolts holding the calliper to the bracket (does not need to be removed) you will notice play in the calliper.
    • This play is available through the enlarged mounting holes on the calliper.
    • When you are sure the calliper is as centred as possible, take turns slowly tightening down both bolts half a turn at a time so the calliper’s position is not disrupted.

     

     

     

     Brake Adjustment


      Objective

    • Periodic adjustment of the brakes makes sure that the brakes do not drag when riding as this can rob power from the vehicle and cause the brakes to wear out much more quickly, and if not maintained properly can become a safety concern for riders.

    Parts Needed

    • None

    Tools Needed

    • 5mm Allen
    • 4mm Allen
    • 2mm Allen
    • 8mm Spanner

    Adjusting the Right Side (facing forwards)

    •  The right side adjustment should always be done first.
    • Back out the 2mm Allen until you can see threads showing. (does not need to be removed)
    • Turn in the 5mm adjustment while moving the wheel slightly back and forth so you can feel for a contact point.
    • Once you feel resistance in the wheel, this means the pad is touching the rotor.
    • Now you will know to back out the 5mm adjustment just enough so that there is no contact with the rotor.
    • Once you’ve done so, slowly tighten the minor 2mm adjustment while still looking for pad-to-rotor contact. (only tighten until snug, do not overtighten.)
    • If you have tightened the 2mm adjustment and there is friction again, you must repeat the steps until there is no pad-to-rotor contact.
    • Also, be sure to do so without backing the 5mm adjustment too far back, as the brake will not work properly.
    • Spin the wheel to verify the rotor is spinning with no contact to pads. (visually and audibly).
    • If there is no resistance and the wheel spins freely, move on to the left side adjustment.

     

     Adjusting the Left Side (facing forwards)

    •  Loosen the 4mm initial adjustment that is holding the brake cable.
    • Using the calliper arm, move the pad in until it makes contact with the rotor.
    • Move the wheel slightly back and forth at the same time so you can feel and look/listen for contact.
    • Once you feel contact with the rotor, this means the pad is touching the rotor.
    • Pull the lever back out just enough so that there is no contact with the rotor.
    • Once you’ve done so, tighten the 4mm bolt while holding the position by hand to secure the cable in your desired position.
    • Check your work using the brake lever to ensure proper stopping power and lever action.
    • If a minor adjustment is still needed, all adjustment should be done to the two 8mm locking nuts.
    • Loosen the two nuts, then proceed to adjust accordingly while spinning the wheel slightly.
    • Once you feel you’ve achieved proper adjustment and the wheel spins freely, tighten the inner 8mm nut to secure its position.
    • The final step is to test brake function and make sure all fasteners are properly tightened.
    • If a major adjustment is still needed, start the process again from the top. 

     

     

     

     

    Front Wheel & Motor Replacement


    Parts Needed

    • Front Motor Hub Assembly (with Tyre and Inner Tube)

      

    Tools Needed

    • 2.5mm Allen
    • 3mm Allen
    • 18mm Spanner
    • T10 Torx

     

    Repair Process

    1. Place scooter upside down on supporting surface.
    2. Remove bottom battery cover.
    3. Remove the front wheel and place it to the side carefully not to tug the Cable. (Unless cable is cut)
    4. After placing the damaged front wheel to the side, Install the new front wheel and follow the same routing of the harness you are replacing through the frame.
    5. Disconnect the 4 plugs on the lower brain next to the battery as shown in the picture below and replace each plug on the damaged harness with plugs from your new harness.
    6. Pull the wires out of the frame and remove the damaged front wheel assembly.
    7. Once all wiring is connected, before installing the battery cover make sure the motor is working properly by spinning the front wheel in a forward direction by hand and pushing down on the throttle.
    8. Reinstall battery cover when the front wheel operation is confirmed.
    9. Ensure you install grommets if missing.

     

             

    Screen_Shot_2018-10-08_at_1.43.39_PM.png

     

     

    Control Cable Replacement


      

    Parts Needed

    • Control Cable

    Tools Needed

    • 3mm Allen
    • T10 Torx

     

    Repair Process

    1. Remove the 4 neck screws. (3mm Allen)
    2. Disconnect the brake cable from the brake lever.
    3. Carefully pull off the handlebar assembly, then disconnect the control cable.
    4. Set the handlebar assembly to the side and place the scooter upside down on a supporting surface.
    5. Remove the bottom battery cover.
    6. Remove the lower neck grommet and the grommet below it on the chassis.
    7. Pull the (grey) control cable out from the lower grommet hole, then push the cable through the tubular section of the chassis in order to drive it out from the bottom of the scooter.
    8. Disconnect the damaged control cable from the lower brain, and replace it with the new control cable.
    9. Installation is opposite of removal. 

    Screen_Shot_2018-10-08_at_3.41.35_PM.jpg

     

     

    Brake Cable Replacement 


     

    Parts Needed

    • Inner Brake Cable
    • Outer Brake Cable

     Tools Needed

    • 3mm Allen
    • 4mm Allen
    • T10 Torx
    • Pliers

    Repair Process

    1. Disconnect the brake cable from the brake lever.
    2. Remove all associated grommets.
    3. Place scooter upside down on supporting surface.
    4. Remove bottom battery cover.
    5. Loosen but DO NOT remove the three 3mm Allen screws holding the lower brain in order to gain slack to pull out the brake cable.
    6. Loosen the 4mm Allen screw holding brake cable on the calliper.
    7. Remove the grommet on the end of the brake cable with pliers.
    8. Pull the cable out from the neck.
    9. Push the cable through the tubular section of the chassis in order to drive it out from the bottom of the scooter.
    10. Carefully pull the damaged cable from under the battery and lower brain. 
    11. When Installing the new cable make sure to check both ends of the cable and install correctly.
    12. Start where the downtube meets the floorboard, begin to drive the cable under the lower brain through the opening until you see it come out from underneath the mudguard.

    Screen_Shot_2018-10-08_at_2.06.09_PM.png Screen_Shot_2018-10-08_at_2.06.01_PM.png

    • Grab the other end of the cable and drive it down the tube of the frame, out the left side opening and back in through the lower opening in the neck.
    • Push out through the top of the neck and install the brake cable on the brake lever.
    • Install the cable on the rear calliper and adjust brake if needed. 
    • Reinstall all removed grommets and lower battery cover. 

     

     

    Safety


    • All repairs requiring the bottom battery cover to be removed should be done with additional caution. 
    • Always wear eye protection and gloves when doing repairs with the bottom board removed.
    • Whenever the bottom board is removed, always inspect the special moisture sticker located towards the rear section of the chassis behind the battery. Any type of open access to the battery on an M365 model is potentially exposed to moisture. Risk of any electrical system contamination is too high to repair. Special stickers inside of the chassis detect moisture and are instant indicators of such situations. 
    • If you notice the moisture sticker is red, stop the repair and contact Mechanic Management. 

    White = no moisture

    Red = Signs of moisture  

    Screen_Shot_2018-10-08_at_2.24.19_PM.png          Screen_Shot_2018-10-08_at_2.24.13_PM.png

     

     

     

     

    Troubleshooting


     

      

    Sticking throttle

    Throttle Alignment

     

     

    Steering is wobbly

    Bent fork

    Flat, lumpy, damaged tyre(s)

    Loose neck

    Loose collar

      

    No tension in the brake cable

    Brake cable snapped

    Brakes improperly adjusted

     

    Kickstand does not sit right

    The kickstand is damaged but not broken yet.

     

    Side to side steering is too light

    Steering adjustment not tight enough

     

    Rough steering

    Steering adjustment too tight

    Spin handle

    Worn steering bearings

    Insufficient tyre pressure

    Defective tire(s) 

     

    Heavy steering

    Insufficient tyre pressure

    defective tyre(s)

    Steering adjustment

     

    Slow takeoff

    Defective tyre(s)

    Insufficient tyre pressure

    Improper brake adjustment

    Rotor not centred

     

    Bent rotor

    Brake lever pulsating when riding

    Noise from the rear wheel that changes in proportion to vehicle speed

     

    Handlebars spin 360 degrees

    spin handle

     

    Wheel wobbling

    Bent Rim

    Improperly installed wheel

    Faulty tyre

    Insufficient rear tyre pressure

    Worn wheel bearings

     

    Clicking Noise when riding

    Worn wheel bearing

     

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