Manual-I

Assembly of electric bicycles

Bike Maintenance Guide

Dear friends, thank you for choosing VARUN among many e-bike brands.

VARUN E-Bike is dedicated to providing people with a safer, more comfortable, and environmentally friendly way of traveling. We prioritize functionality, design, quality, and customer experience. Our goal is to offer top-quality products at competitive prices while providing exceptional service. Choosing VARUN won't disappoint you.

Upon receiving your VARUN e-bike, please send your order number and bike's serial number (located on the frame head tube) to our support center at support@varunbike.com. We will activate the 15-month warranty for your e-bike.

We also encourage you to share your riding experience and suggestions with us. We continuously work to improve our e-bikes and provide an enjoyable riding experience to our customers.

I. Warm Tips: Please Read the Manual Before the First Ride

Before riding, carefully read this manual and check the integrity of the parts to ensure your safety. If you encounter any issues, please contact us promptly at support@varunbike.com.
Always wear a helmet when riding an e-bike.
Please keep both keys in a safe place.
Fully charge your e-bike's battery before riding.
Always respect pedestrians.
Avoid riding in wet environments as the e-bike may slip, causing injury. Moisture can also damage electronic components and void the warranty.
Observe local laws and regulations regarding electric bicycles.
Do not disassemble or modify the parts on your own. If replacements are needed, please contact us to purchase standard parts.
Avoid prolonged exposure to sunlight or rain. Store your e-bike in a place with controlled temperature and without corrosive gases to prevent damage to plated parts and painted surfaces.
To maximize range:

- Use the pedal-assist mode.

- Brake sparingly while maintaining safety.

- Avoid overloading.

- Before riding, check tire pressure and ensure it is within the recommended range (typically between 35PSI-65PSI or 280KPA-450KPA).

E-bikes carry inherent risks, so follow road rules carefully. In emergencies such as riding at excessive speed, brake the rear wheel first, then the front wheel. Sudden braking of the front wheel can cause falls, so ride cautiously.
Prior to riding, thoroughly inspect the e-bike's condition. You are responsible for any consequences resulting from improper operation or use of the e-bike.
Each e-bike has a unique frame number located in the head tube position. Upon receiving the e-bike, record and store the frame number as we don't keep records of it.
Comply with local laws and regulations. If local laws prohibit the use of speed control handles (also known as throttles), do not install or use them on VARUN brand products. Any consequences will be at your own risk, and VARUN brand will not assume responsibility.
Before your first ride, ensure that all parts and screws of your e-bike are securely tightened (wheel clamps, saddle clamps, etc.).

If you have any further questions or require assistance, feel free to contact our support team. Happy riding with your VARUN e-bike!

II. All Models of Varun Electric Bicycles

Warm Tip:

- If your weight is under 130kg, you will have a better riding experience.

- The speed and range of the e-bike may vary depending on factors such as road conditions, weather, and rider weight.

III. Regarding E-Bike Installation:

When you receive the product, carefully check the list of accessories. Prioritize safety during the installation process and follow the steps below to assemble the vehicle.

Note: The installation steps may vary slightly depending on your specific e-bike model. Please refer to the corresponding installation steps for the model you purchased. To ensure your safety, wear protective gloves before installation. Do not disassemble or modify the e-bike without permission, as it may result in permanent damage or personal injury.

(1) Handlebar Installation:

For Envoy | Envoy-S | Envoy-Pro Model:

- Insert the upper part of the handlebar riser into the lower part, ensuring the retaining structure is locked in the middle.

- Stand the riser vertically and lock the folders at the bottom of the riser.

- Confirm that the handlebar structure is secure and doesn't wobble.

Note: When adjusting the height of the handle riser, do not exceed the limit line!

For Sleeper | Sleeper-S Model:

- Remove the protective plug and insert the handlebar riser against the frame head tube, ensuring it exceeds the minimum insertion depth marked on the handlebar riser vertical tube. Then tighten the screw.

For Altus Model:

- Install the handlebar into the stem, align the fork, and tighten the screws.

For Altus-27.5'' | Altus-Pro | Altus-24'' | Ballistic Model:

- Turn the handlebar cross tube 180 degrees to face forward and tighten the two bolts using a No.2 (M4 wrench) tool to secure the handlebar in place.

(2) Adjusting the Handlebar Angle:

For Envoy | Envoy-S | Envoy-Pro Model:

- Adjust the handlebars to the desired position and then secure the handlebar riser using the quick-release clamp ring.

For Sleeper | Sleeper-S | Altus | Altus-24'' Model:

- Adjust the angle of the handlebars and tighten the screws.

For Altus-27.5'' | Altus-Pro Model:

- Use a No.2 (M4 wrench) tool to unscrew the four bolts from the stem cover.

- Rotate the handlebars until they are perpendicular to the bike frame.

- Tighten the stem cover against the handlebars and reinstall the four bolts.

- Finally, tighten the screws using a No.2 (M4 wrench) tool.

(3) Front Wheel Installation:

For all models listed:

- Use a No.8 (M17 wrench) tool to loosen the fork retaining bar and remove it (this accessory prevents fork deformation during delivery).

- Place the front wheel into the forks, ensuring the fork hangers are secured to the axle and the disc is positioned in the middle of the brake.

- Tighten the flange nuts on both sides using a No.7 (M15 wrench) tool.

(4) Fenders and Lights Installation:

For Envoy | Envoy-S | Envoy-Pro | Sleeper | Sleeper-S Model:

- Loosen the screws at the corresponding positions of the front wheels.

- Position the fender and re-tighten the screws.

- Attach the headlights, adjust their position, and then tighten the screws.

- Loosen the screws holding the baffle, secure it, and re-tighten the screws.

(5) Pedal Installation:

For all models listed:

- Ensure that the threads of each pedal are fully inserted into the crank arm.

- Use a No.7 (M15 wrench) tool to fully tighten the pedals.

- Note: Turn the pedal labeled "L" counterclockwise into the left crank and the pedal labeled "R" clockwise into the right crank.

(6) Saddle Mounting:

- Connect the seat and seatpost first.

- Insert the seatpost into the bar receiver, adjust its position, and find the suitable height for your riding preference.

- Tighten the seat with the clamp.

- Note: Do not exceed the maximum saddle height or raise it above the safety line.

(7) Tail Light/Rear Reflector Installation:

Taillight Installation (Envoy | Envoy-S | Envoy-Pro | Sleeper | Sleeper-S Model):

- Remove the taillight, install it on the rack, and tighten the screws.

- Connect the plug of the taillight cable and secure the cable to the rack using a tie wrap.

Rear Reflector Installation (Altus-27.5'' | Altus-Pro | Altus-26'' | Altus-24'' | Ballistic Model).

(8) Battery Installation:

For Envoy | Envoy-S | Envoy-Pro | Sleeper | Sleeper-S Model:

- Insert the battery into the center of the frame and lock it with the battery key.

- Ensure the battery switch is on for an enhanced riding experience.

- To remove the battery, insert the battery key, turn it to the unlock position, and then remove the battery.

For M26-3 Model:

- First, install the battery pouch on the handlebars.

- Then, pull out the power cord connector from under the pouch.

- Locate the power cord connector and connect it to the battery's power cord connector to complete the installation.

For Altus-27.5'' | Altus-Pro | Altus-26'' | Altus-24'' Model:

- Open the battery compartment and place the battery at the correct angle.

- Gently insert the battery into the holder until it locks automatically.

- Insert the key into the keyhole and rotate it to align with the "OFF" icon to lock the battery, preventing removal.

(9) Adjusting the Brake Levers, Gauges, Shifter, Throttle, and Bell on the Handlebars:

- Adjust the angle of each component as desired.

- Tighten them using a suitable tool.

Completing the above steps indicates successful installation.

✅ Verified Purchase

My relatives and friends, who are electric bike enthusiasts, consider this model not just a fantastic bike but also an excellent purchase. The delivery exceeded expectations, arriving quicker than anticipated. The assembly process was a breeze, with all necessary tools provided. One of the standout features is its comfort, largely due to the easily adjustable saddle. Additionally, the fat tires contribute to a smooth ride, effortlessly handling the bumpy streets in my area. On my initial outing, I covered 11 km across various terrains, including pavement, sidewalk, and grass, experimenting with all the gears.

The bike's 48V battery supports a commendable speed of up to 25km/h and showcases an impressive range. I put this to the test by riding 5 km on power levels 0 (no assist) and 1 (low assist) and concluded the journey with the battery still fully charged. The following day, I traveled 6 km using levels 2 and 3, and the battery indicator still read full. This bike's build is robust, tipping the scales at 34kg, with the battery accounting for a significant portion of the weight. I highly recommend this bike for taller individuals; standing at 5'9", I find it a perfect fit.

I received my bike about a month ago and found the setup process to be straightforward, getting it ready for a ride in under an hour. Yesterday marked my first journey on it, and it performed exceptionally well.

After comparing several e-bikes, this one satisfied all the criteria I sought in an electric bicycle. I embarked on my maiden voyage in chilly weather with some snow underfoot. The experience was delightful, and the pedal assist function proved efficient across its five settings. The Pedal Assist System (PAS) offers the flexibility of riding without pedaling or engaging in physical exercise while pedaling. Moreover, the LCD display was conveniently legible during the ride.

In terms of design and aesthetics, the bike stands out. Unlike many other models that feature externally mounted batteries and visible wiring, Ballistic has seamlessly integrated these components within the frame, resulting in a sleek and attractive design, particularly in black.

I decided to wait a bit before writing this review to truly assess the durability of this bike. It arrived promptly and assembly was straightforward. The assembly required only a few steps: mounting the seat, attaching the front tire, setting up the headlight, and fixing the handlebars. Impressively, all the necessary tools were included in the package. The bike is well-constructed, user-friendly, and impressively fast, thanks to its electric capabilities. The inclusion of disc brakes is a significant advantage, especially given the bike's speed. It also boasts excellent tire traction, proven by my successful ride through a snowstorm without any issues. This bike offers great value for its price, earning admiration for its uphill performance and stylish appearance. An added benefit is the option for a 2-year warranty, enhancing its appeal.

I acquired this e-bike on October 11, 2023, and it arrived by October 15, giving a clear expectation of the delivery timeframe. As a newcomer to the e-bike scene, I don't have much to compare it with, but after several rides taken by both myself and my husband, we are thoroughly impressed and in love with this bike. I managed the assembly on my own, which was straightforward, thanks in part to a very helpful instructional video. I've also customized it by adding a rack, a water bottle holder, a new seat, and a pouch. Riding through water and mud was a blast, despite getting quite dirty. The pedal assist feature has been fantastic for longer rides, and impressively, I've even managed to shed some weight while using it frequently. The battery recharges in about 3 hours, though it could extend to 4 or 5 hours if it's completely drained. From my experience, it's around 4 to 5 hours for a full charge. I'm definitely planning to purchase another one for my husband. Priced at around 1,299 euros at the time (though the price might have increased since then), I believe this bike is an excellent choice for first-time e-bike buyers. Overall, it's been a fantastic buy, and I hope this review helps someone. 🙏

The bike's quality and value for the price point are quite impressive. It's on the heavier side, which is typical for e-bikes. The packaging was exceptionally thorough, secured with numerous heavy-duty zip-ties, so be prepared with a razor knife, strong scissors, or wire cutters for unboxing.

Putting the bike together was pretty straightforward, thanks to clear instructional videos. Taking my time to ensure everything was done correctly, I completed assembly in less than 90 minutes. Even those new to bike assembly should find the process manageable, especially since all the required tools are provided.

The initial ride brought a bit of a surprise. I had the controller set to Level 1 for minimal assist and started pedaling, only to find the bike accelerating quickly. It turned out I was inadvertently twisting the right handgrip, which functions as a throttle, similar to a motorcycle. After adjusting to this feature, the ride went smoothly. You can select from assist Levels 1 to 5 for pedaling assistance or use the grip to cruise without pedaling. Level 1 offers a gentle boost, whereas Level 5 means the bike is practically doing all the work for you.

Another slight surprise was discovering that the bike simply coasts when you release the throttle, unlike a gas motorcycle that slows down. This, however, is something I anticipate getting used to very quickly.

Assembly of electric bicycles

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