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synch user manual

An introducton to synch electric bikes

Product specifications

250w 36v

Motor: Bafang 250w rear hub
Air suspended fork
20 x 4 inch rims
TFT LCD Display UKS2
Maximum speed: 15.5mph pedal assist Max load: 120 kg
Hydraulic disc brakes Charger: 36v
Rated voltage: 36v Net weight: 23 kg 6061 Aluminum frame

250w 48v

Motor: Bafang 250w rear hub
Air suspended fork
20 x 4 inch rims
TFT LCD Display UKS2
Maximum speed: 15.5mph pedal assist Max load: 120 kg
Hydraulic disc brakes Charger: 48v
Rated voltage: 48v Net weight: 24 kg 6061 Aluminum frame

750w 48v (Not UK road legal*)

Motor: Bafang 750w rear hub Optional throttle
Air suspended fork
20 x 4 inch rims
TFT LCD Display UKS2
Maximum speed: 22mph pedal assist Max load: 120 kg
Hydraulic disc brakes
Charger: 48v
Rated voltage: 48v
Net weight: 25 kg
6061 Aluminum frame

Dimensions - Super Monkey | synch electric bikes
Super Monkey
Dimensions - Long Tail Monkey | synch electric bikes
Long Tail Monkey
Dimensions - Mini Monkey | synch electric bikes
Mini Monkey

Operation

Start up

Press and hold the “display on/off” button for two seconds. The pedal assistance is now at level 1. Your ride can begin!

Ride

There are five levels of pedal assistance. Use the plus and minus buttons to choose a level.

The higher the level, the more power assistance is available. The battery will drain quicker in higher levels. On the display, the level is displayed at the bottom left corner.

If you drive in the dark, switch on the front lamp with the seperate switch to the left of the gear triggers.

To turn on the taillight, press and hold the plus button for a moment. You will see the lighting icon on the display.

By applying the brakes while cycling you will cut the power from the motor.

By pressing and holding the minus button, you switch on a walk-along mode.

This allows you to walk next to your bike without having to push.

Stop

The display switches off automatically if there is no operation or rotation of the wheels for two minutes. 

You can also switch it off yourself, by pressing and holding the “display on/off” button for a while.
Don’t forget to turn off the battery!

M-button

Briefly press the “M” button for information about the trip, such as average speed, distance travelled in kilometers, total distance, and so on.

To charge your mobile phone? Press and hold the “M” button until a cord symbol appears on the display. 

You have now enabled the USB port.

You can plug your phone into the bottom of the display so that it gets power from your battery.

Press and hold the “M” button again to turn off the charging function.

Press the “M” button twice in quick succession, then you will enter the settings. 

Please do not change anything in these settings! If you do, you will lose your warranty!

In some cases, the motor may get too hot. 

This happens if you drive through loose sand or mud or ride up a steep hill in too high a gear. 

Switch off the display and battery in its entirety. 

Wait a few minutes to cool the motor before turning the battery and display back on.

The battery

You can switch the battery on and off by using the round button on the side of the battery.

If you do not use your bike, turn off the battery!

Removing the battery is done by inserting your key into the battery lock and turning it open. 

Then you can move the battery straight up and it will come loose from the holder. 

On first use, it may be necessary to give the battery a light tap from below with your hand to disconnect it.

Your battery connects to the battery holder by holding it parallel but in a higher position above the holder and then sliding the battery down. 

If it is in the right position, lock the battery with the key. 

If you forget this, the battery might disconnect while riding, with possible damage as a result.

You can charge your battery while it stays on the bike by removing the small rubber cover cap and inserting the charging cord into the battery. 

Of course, you can also disconnect the battery and charge it somewhere else.

Never leave a charging battery unattended for prolonged periods.

If the light on your charger lights up red, it’s time to charge the battery. 

If the light is green, stop charging your battery and unplug the charger.

Battery maintenance and storage

You should make sure that the battery is never exposed to temperatures colder than -20 °C or warmer than 35 °C.

Charge the battery to about 40% and disconnect it if it is not going to be used for more than 30 days.

Store the battery in a draft-free and stable environment, preferably in your home and not in your shed.

Store the battery with a filling of about 40%, otherwise it will discharge and be damaged.

This damage is not covered by the limited warranty.

Never expose your battery to a humid environment.

Do not clean the battery with water. Water damage is not covered by the limited warranty.

Only charge with the original included charger.

Do not open the battery. Breaking the seal on top of the battery will void your limited warranty.

Do not expose your battery to high temperatures.

Important! Please read this information carefully.

Your battery is a precious and important element. 

Improper use or storage will significantly shorten the service life and your warranty may void.

Cleaning your bike

You can switch the battery on and off by using the round button on the side of the battery.

If you do not use your bike, turn off the battery!

Removing the battery is done by inserting your key into the battery lock and turning it open. 

Then you can move the battery straight up and it will come loose from the holder. 

On first use, it may be necessary to give the battery a light tap from below with your hand to disconnect it.

Your battery connects to the battery holder by holding it parallel but in a higher position above the holder and then sliding the battery down. 

If it is in the right position, lock the battery with the key. 

If you forget this, the battery might disconnect while riding, with possible damage as a result.

You can charge your battery while it stays on the bike by removing the small rubber cover cap and inserting the charging cord into the battery. 

Of course, you can also disconnect the battery and charge it somewhere else.

Never leave a charging battery unattended for prolonged periods.

If the light on your charger lights up red, it’s time to charge the battery. 

If the light is green, stop charging your battery and unplug the charger.

Maintenance + troubleshooting

Like any mechanical device, your bike requires regular maintenance to keep it functioning optimally. 

This chapter will guide you through the steps needed to maintain your e-bike, ensuring that it continues to offer reliable service.

1. Battery maintenance

The battery is the heart of your e-bike. If not maintained properly, it can degrade over time, reducing the bike’s range. To maintain the battery:

Charge it regularly: It’s recommended to charge the battery after every ride to keep it at its full capacity. Avoid fully depleting the battery before charging. 

Keep it cool: Extreme heat or cold can harm the battery life. Store your e-bike and its battery in a moderate temperature environment whenever possible. 

Store correctly: If you’re not going to use your e-bike for a long period, make sure the battery is partially charged (between 40%-80%), and remove it from the bike.

2. Tire maintenance

E-bikes are typically heavier than standard bicycles, which can lead to increased tire wear. 

To maintain your tires

Regularly check tire pressure: Under-inflated tires can increase rolling resistance and make your bike inefficient. 

Check your tire pressure every week and keep it within the suggested range of 15-25psi.

Inspect for wear and tear: Regularly inspect your tires for cuts, abrasions, or worn treads. Replace them if necessary.

3. Brake maintenance

Good braking performance is crucial for safe riding. 

As e-bikes are generally heavier than traditional bikes, maintaining the brakes is paramount. To maintain your brakes:

Check brake pads: Inspect your brake pads for signs of excessive wear. If your brake pads are worn out, it’s time to replace them.

Adjust brake callipers: If your brakes feel soft or spongy, you may need to adjust your callipers.

4. Chain and gear maintenance

Even though the power comes from a motor, e-bikes still use a chain and gears. 

To maintain these components

Clean regularly: Use a brush and a suitable degreaser to clean the chain and gears, removing dirt and grime that can cause wear.

Lubricate the chain: After cleaning, dry the chain thoroughly and apply a bike-specific lubricant. 

This will reduce friction and prevent premature wear.

5. Regular inspection

Inspect your e-bike for loose screws, nuts, and bolts. 

Check the frame for cracks or damage, especially after a fall or collision. 

If you find any problems, have them repaired immediately.

Finally, it’s worth noting that even with regular maintenance, components of your e-bike will wear out and need replacement.

Keeping a regular maintenance schedule and being attentive to your e-bike’s needs will extend its life and keep it performing at its best. 

If there’s something you’re unsure about or if the bike needs a major repair, it’s always wise to take it to a professional.

Remember, regular maintenance not only improves the longevity of your e-bike but also ensures a safe and enjoyable ride.

Electrical system troubleshooting

UK e-bike legislation

You can switch the battery on and off by using the round button on the side of the battery.

If you do not use your bike, turn off the battery!

Removing the battery is done by inserting your key into the battery lock and turning it open.

Then you can move the battery straight up and it will come loose from the holder. 

On first use, it may be necessary to give the battery a light tap from below with your hand to disconnect it.

Your battery connects to the battery holder by holding it parallel but in a higher position above the holder and then sliding the battery down. If it is in the right position, lock the battery with the key.

If you forget this, the battery might disconnect while riding, with possible damage as a result.

You can charge your battery while it stays on the bike by removing the small rubber cover cap and inserting the charging cord into the battery. 

Of course, you can also disconnect the battery and charge it somewhere else.

Never leave a charging battery unattended for prolonged periods.

If the light on your charger lights up red, it’s time to charge the battery. 

If the light is green, stop charging your battery and unplug the charger.

Warranty

Synch warrants to the original owner of each of its Super Monkey E-Bikes, when purchased directly from Synch, or an authorised retailer, that the product is complete and that the functional parts will be free of defects for the periods and under the terms indicated below.

Warranty

1 | A twelve (12) month or 500 life cycles, whichever comes first, for the Super Monkey battery from the date of purchase by the original owner.

Like any rechargeable battery, your Super Monkey rechargeable battery pack will experience a decrease in capacity over time as it is subjected to charge and discharge cycles.

Synch warranties that your battery pack will maintain 70% or higher capacity for at least 500 charge cycles or one year, whichever comes first.

The battery warranty does not include damage from power surges, use of an improper charger, water damage, improper maintenance, or such other misuse or normal wear.

2 | A twelve (12) month warranty for your Super Monkey motor. The motor warranty does not include damage from improper use, water damage, improper maintenance, or such other misuse or normal wear.

3 | A twenty- four (24) month, from date of delivery to the original owner for all other parts, excluding wear and tear on tires, tubes, rims, spokes, brake pads, ca- bles, chain, wheels, grips, and saddle and excludes damage from power surges, water damage, improper maintenance, or such other misuse or normal wear.

Terms and conditions of warranty

1 | The Warranty is made to the original owner only and is nontransferable. It is only effective with a valid proof of purchase consisting of the original purchase document or receipt indicating the date of purchase, the dealer’s name (if applicable) and the designation of the model. 

Synch reserves the right to reject the coverage of this Warranty if the accompanying documentation of the Super Monkey components is not accurate or complete.

2 | The Warranty becomes effective from the date of original purchase and expires at the end of the applicable warranty period.

3 | This Warranty is void if the care instructions (whether provided with the sale or posted on the Synch website), and any amendments thereto, are not followed.

4 | This Warranty does not apply to rental or commercial use of the Product.

5 | This Warranty exclusively covers systems and components provided by Synch.

6 | The use of spare parts from unknown sources, for example, replacement parts from third parties is strictly prohibited.

7 | Photo and/or video will be required for warranty inspection by a Synch Customer care agent.

8 | If you purchased a bike and had it then shipped to another country or outlying island territories (ex: DOM-TOM, Netherlands Antilles), parts will only be sent to the country and mainland European territory in which the bike was originally sent.

9 | This Warranty only covers defective materials and manufacturing defects.

In the case of a warranty claim, Synch undertakes to either repair faulty system components and/or to replace such components, at the discretion of Synch.

Upon identifying a fault with a Super Monkey bike, the owner must contact the Company or a local authorised Super Monkey dealer to initiate the warranty process.

Any component to be repaired under this Warranty must be transported to the dealer at the owner’s own expense and risk, and, after the completion of such repair, must be picked up at the dealer.

Costs for repair work performed in advance by persons who have not been authorised by Synch will not be reimbursed. 

In such a case, any warranty claim will cease and any remaining warranty period will be voided.

Repair work and/ or replacement of components during the warranty period does not lead to an extension and/or a new start of the warranty period.

Repair work and direct replacement during the warranty period may be performed with functionally equivalent replacement components.

This Warranty excludes any claims as to the reimbursement of property damages, downtimes, travel expenses, lost profit, or any other claims.

Synch maximum liability in connection with this Warranty is limited to the purchase price of the Product.

Quick start guide

Every wondered what all of the settings on the Super Monkey are for? Let’s show you! This video gives riders an in-depth look at the controls on the bike, offering an extended insight to get you on the road and into your journey.

Battery charging + care

Your Synch Super Monkey has a very robust battery made up of quality Samsung Cells. However, in order to maintain its optimum working condition, these simple steps offer some guidance to ensure your bike keeps performing as it should.

How to change a tyre

In the event you get a puncture, or your Super Monkey tyre is running low on tread, you may need to change your tyre. We understand this can be quite a daunting task, so in this guide we show you the process step-by-step to get you back up and running!

Upgrading your stock Super Monkey forks to suspension

Thinking of upgrading your stock ‘rigid’ Super Monkey forks to the new Suspension forks? 

This is a very involving task, requiring a broad selection of tools and we do not recommend this to those who are not confident with bicycle building/maintenance.

If you don’t feel up to the job of building up your front end up with the new suspension forks, but would like to make the upgrade, then we would highly advise speaking to your local bicycle mechanics as they could help you.

Taking on the task and damaging your bike could result in voiding your warranty.

If you’re looking to purchase to the suspension forks, please contact us directly as they are in stock and available as an option when building your bike online at the time of writing. They will be available to purchase on our website as an ‘accessory’ in due course too!