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S H A R K
O w n e r ' s M a n u a l

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Summary of Contents for TEKTRO SHARK

  • Page 1 S H A R K O w n e r ' s M a n u a l...
  • Page 2 About Manual This manual contains details of the product, information on its operation and maintenance, and other helpful tips for owners. Read it carefully and familiarize yourself with the E-Bikes before using it to ensure safe use, reduce risk of damage and premature wear, and prevent accidents. Be sure to retain this manual as your convenient E-Bikes information source.
  • Page 3: Table Of Contents

    Contents Bike Specification • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Bike Assembly Guide •...
  • Page 4: Bike Specification

    Bike Specification LCD Display Shimano Shifter On/Off Switch LED Light Switch Throttle Information Saddle Frame Battery Head Tube Rear Brake LED Head Light Motor Front Fork Front Brake Real Derailleur Controller Pedal...
  • Page 5 78.7 Inch - Total Length 42.9 Inch - Handlebar Height 49.2 Inch - Wheelbase 27.6 Inch - Min Seat Height 35.4 Inch - Max Seat Height 18.9 Inch - Chain Stay Length 31.5 Inch - Standover Height 23.6 Inch - Top Tube Length 28.7 Inch - Wheel Diameter 5.5 Inch...
  • Page 6 Battery Charger 48V 20Ah Samsung/LG lithium battery US standard 3.0 A smart charger Range 60-80 miles Controller 48V/22A Hub Motor Display 750W brushless gear motor LCD display with USB charging Total Payload 400 lbs Weight 79 lbs Capacity Recommended Pedal Assist 5'3"...
  • Page 7: Bike Assembly Guide

    Bike Assembly Guide Preparation Checklist ◆ Extra tools needed: (1)10mm Wrench (2)15mm Wrench NOTICE: Before assembling your bike, it’s recommended to remove the battery for the reasons outlined below: Determine if there’s battery drain or damage during shipping. Reduce the weight of the ebike to make it easier to maneuver the bike while assembling. Avoid battery damage during the assembly process.
  • Page 8: Recommended Torque Values

    Recommended Torque Values Hardware Location Recommended Torque(NM) Handlebar 12-18 Stem 12-18 Saddle 12-18 Front Wheel(For bikes with bolts on front wheel) 15-22 Rear wheel 30-38 Bottom Bracket Parts 30-50 Pedals 28-33 Disk Mounting Bolts Disk Caliper Mount Crank Bolts 32-36 Rear Derailleur Cable Pinch Front Derailleur Clamp Saddle Post Clamp...
  • Page 9: Assembly Instructions

    Assembly Instructions Handlebar Installation(4mm Hex Wrench) ◆ Step 1: Loosen the bolts on your bike stem. Step 2: Center your handlebars and rotate them to align to the marking pointed to in the below image. Step 3: Tighten bolts to handlebar stem, but don’t tighten completely as you may want to further adjust the angle later to align more precisely. Test the positioning, and adjust the handlebar to your preferred angle.
  • Page 10 Rear Rack Installation (4mm Hex Wrench) ◆ The rear rack comes loosely attached to the bike, but has not yet been fully secured. Step 1: Remove the bolts with washers located a couple inches behind the seat post. Step 2: Place the rack down and adjust placement until the holes on the end are aligned, and screw the bolts back in.
  • Page 11 Front Wheel Installation ◆ Step 1: After tightening the rear rack, lay a mat down to protect both bike and floor from scratches. Next, carefully flip your bike upside down for the front wheel installation. Step 2: Remove the plastic axle guards from the front wheel, being careful to avoid contact with the brake rotor set.
  • Page 12 Step 3: Remove the front forks protection bar by manually pulling it straight up. Pull out the red pad, which is used to protect the hydraulic brake caliper. Step 4: Align the fork dropouts with the axle of the wheel hub, making sure the dropouts are fully seated on the axle. Also ensure the brake rotor is properly inserted into the caliper.
  • Page 13 Step 5: Prepare your quick-release skewer for the next step by removing the thumb nut and one of the cone springs. Step 6: Install the quick-release skewer starting from the brake rotor side of the wheel, inserting the quick-release skewer through the hub and then replacing the second cone spring on the other side.
  • Page 14 Step 7: Tighten the thumb nut until the quick-release lever is held in line with the axle, and then use your palm of your hand to close the quick-release lever. Step 8: Rotate the front wheel. Make sure to fully close the quick release skewer lever on the front wheel and check the wheel balance in Pedal Only Mode. If you notice the riding is imbalanced or the rotation of the front wheel makes noise, it means the bolts were not completely tightened or not aligned horizontally.
  • Page 15 Front Light & Front Fender Installation (Extra Tool: 10mm Wrench) ◆ Step 1: The front light and front fender are both secured by a single bolt, so the front fender must be installed together with the front light. If you prefer not to have a front fender, you may install the front light by itself.
  • Page 16 Step 3: Tighten the bolts attaching the front fork to the hub, as shown in the image. Make sure the washers are directly underneath the bolt head and nut. Pedals Installation ◆ Make sure your pedals are installed on the correct side, as installing on the wrong side will damage the threads. Indicators for the right pedal (R) and the left pedal (L) can be found in two places: the stickers on the plastic cover, and the bottom of the pedal threads.
  • Page 17 Before you install the pedals, apply a small amount of waterproof grease onto the spindle. Start threading the pedal on by hand to ensure the pedal is going in perfectly straight, rotating in the direction of the pointer shown on the crank. If it is not spinning smoothly, make doubly sure that you have the correct left or right pedal.
  • Page 18 U Shape Disc Brake Guard Installation (4mm Hex Wrench) ◆ Step 1: Remove the bolts on the chain stay. Step 2: Put the bolts through the disc brake guard, then replace bolts as shown in the picture below.
  • Page 19 Seat Adjustment ◆ Adjust the Seat Height: Open the seatpost quick release lever. Adjust the seatpost height by sliding the seatpost up or down to a height appropriate for your leg length and preferred riding position. Do not extend the seatpost beyond the minimum insertion marking etched onto the seatpost. WARNING: Overextending the seatpost can cause it to break or come off your bike, putting you at very high risk of serious injury or death.
  • Page 20 Adjust the Seat Angle: Step 1: Loosen the seat adjustment bolt beneath the seat. Move the seat backward or forward and tilt to adjust the angle within the limit markings etched on the seat rail. Do not exceed the limit markings, to ensure the safety of yourself and the bike. Step 2: Tighten the seat adjustment bolt.
  • Page 21 After Bike Assembly ◆ Please write down the serial numbers found on the head tube, battery and motor on the inside front cover of this manual to facilitate failure reporting. Make sure each letter and number is correct. Make sure you take down the Capital Letters here! Make sure you take down the Capital Letters here! Bike frame number Battery serial number...
  • Page 22: Safety Check

    Safety Checklist Safety Check Basic Steps o Test front and rear brakes for proper function. o Ensure brake pads are not overworn and are correctly positioned in relation to rims. Brakes o Make sure brake control cables are lubricated, correctly adjusted and display no obvious wear. o Check that brake control levers are lubricated and tightly secured to handlebars.
  • Page 23: Safety Precautions

    Safety Precautions The following safety notes provide additional information on the safe operation of your E-bike and should be closely reviewed. Improper operation, or failure to confirm correct installation, compatibility, and maintenance of any component or accessory may result in serious injury or death. Before Riding All users must read and understand this manual before first use.
  • Page 24: E-Bike Use And Care

    E-Bike Use and Care The following table of contents provides general guidance on e-bike variable power assist settings and their effects on both range and perfor- mance. This content will apply broadly to most riders, but multiple factors will affect individual results including rider fitness, terrain, proper maintenance, etc. While we hopes and believes you will thoroughly enjoy your e-bike, no guarantees of universal performance characteristics for all owners can be given.
  • Page 25 ◆ Display Screen Power Output Indication Battery Indicator Pedal Assist Level Indication Area Motor Power Indicator Speed Indication Lighting Indicator Speed Unit Function List (Check form 1 down below) Range / Time Unit Text Indication TRIP Single mileage (km) ERROR 21 Abnormal Current Total mileage (km) ERROR 22...
  • Page 26 Start-up Procedure ◆ Press and hold the power button “ ” on the control panel for two seconds until the display comes on. Press the information button “ ” on the control panel to cycle through the display settings: odometer, trip meter, max speed, and average speed. MILE MILE MILE...
  • Page 27 NOTICE: If the motor power ever becomes too strong for riders’ preference or sense of safety, simply apply the handbrake to cut off motor power completely. If the throttle assist seems accidentally engaged too easily, causing unwanted acceleration, simply apply the handbrake or lower the Pedal Assist level to 0 to disengage the throttle.
  • Page 28 ◆Pedal - Assist Adjustment The e-bike ships with standard Pedal Assist settings ranging from 0 (no assist) to 5 (maximum assist). To adjust, hold both “ + ” and “ - ” together for two seconds, bringing you to the trip meter reset screen described above. Then, hold both “...
  • Page 29 The e-bike ships with the throttle set to accelerate the e-bike to a maximum speed of 25 mph. This can be adjusted higher, BUT please be mindful of local laws and regulations regarding maximum throttle speeds permitted. The brand is not liable for any consequences of rider misuse of maximum throttle speed adjustments.
  • Page 30 ◆ Sercury Passcode To prevent theft or unauthorized use of your e-bike, you may set a security passcode to prevent use of the motor/electronics (though still permitting manual pedalling). Hold “ + ” and “ - ” together for two seconds, first bringing you to the trip meter reset screen described above. Then, hold “...
  • Page 31 Display will then show “ PSd-n ” (no), press “ + ” to change it to “ PSd-y ” (yes) to turn the security passcode on. Press “ ” to confirm. Then, choose a 4-digit passcode of your preference. Press “ + ” and “ - ” to adjust numbers up/down. •...
  • Page 32: Battery Charging

    Battery Charging Charging Procedure for On-bike Charging Step 1: Check the battery power indicator on your display (the power level indicator on the display is not the actual power but the voltage power). Step 2: Assemble the charger as shown in Figure 1 by inserting the plug (Plug 1) into the transformer. Plug 2 Plug 2 Plug 1...
  • Page 33 Charging Procedure for Off-bike Charging Step 1: Find the keys located on the handlebar (fig. 3) and cut tie to remove them. If you cut them from the handlebars, be careful not to damage any of the wires. Figure 3 Figure 4 NOTICE: Please keep your key and its spare in a safe place.
  • Page 34 Step 2: Use the key to unlock the battery (fig. 5). While holding the battery with one hand, detach the battery by turning the release switch located on the underside of the frame (fig. 6). Figure 5 Figure 6...
  • Page 35 Step 3: Check the battery status (fig. 8): Light Status Charging Status Red (on charger) Charging Green(on charger) Fully charged Yellow(on battery) 40%-60% power Red(on battery) 40%< power Figure 7 Figure 8 NOTICE: Please write down the serial number found on the battery beneath the barcode (fig. 7) on the inside front cover of this manual to facilitate failure reporting.
  • Page 36 Step 4: Safest way to charge your battery- First, assemble the charger as shown in Figure 1 inserting the plug (Plug 1) into the transformer. Then insert the DC plug (Plug 2) into the battery charging socket. Last, insert the power plug (Plug 3: 110/220 volt plug) to the power socket. This order helps extend the battery life and effectively reduces battery damage caused by improper charging.
  • Page 37 After Charging Please unplug the main power supply first by removing the plug from the power socket, then remove the DC port from the battery. You can then check the battery status on the display screen Hold the battery with one hand and turn the release switch with the other hand to install the battery. Lock the battery when finished to prevent theft. NOTICE: If your battery does not seem to be charging normally and is taking longer to charge than expected, please stop charging and contact Bike seller immediately.
  • Page 38 Before Riding Ensure that the battery has been properly secured to the bike before each use by grasping the battery pack and pulling upwards, testing the security of the pack. Battery Maintenance (48V 20AH Samsung/LG Lithium-ion battery) • Do not fully drain your battery. Turn off the power when the battery charge is low. •...
  • Page 39: Riding Modes

    Shark can reach speeds of up to 25 miles per hour with throttle mode, which not only allows you to travel faster, but also reassures riders with extra power whenever needed, depending on traffic conditions and rider energy levels. If you are an adventurer who chases after speed and distance without...
  • Page 40 PEDAL-ONLY ◆ In this mode, the E-bikes will perform like a normal bike, as you’ll be riding without any assistance from the motor. This mode is especially useful if you run out of battery, or are looking for more intensive resistance training. We suggest that you select a lower assistance level when you first ride your Bike.
  • Page 41: Parking & Transport

    2. Ensure your loads are properly secured and periodically check that nothing has loosened. 3. Plan your route accordingly when cargo is loaded on the Shark, considering hill climbing ability, steering, and braking. Also account for moderately reduced range when carrying extra cargo weight (or an additional passenger).
  • Page 42: Safety And Care Instructions

    Safety and Care Instructions To ensure safe riding conditions and maximize e-bike longevity, you must follow the guidelines outlined below: • To clean the e-bike, wipe the frame with a damp cloth soaked in a mild, non-abrasive, non-corrosive detergent mixture. Wipe or spray all unpainted parts with anti-rust treatment after being used in coastal areas or areas with salty air or water.
  • Page 43: Maintenance

    Maintenance Battery Maintenance (48V 20AH Samsung/LG Lithium-ion battery) ◆ Don't fully drain your battery. Turn off the power when the battery charge is low. Fully charge the battery after each use, no matter how much power is used. This will prolong the battery life. If the battery is not used for a long time, store the battery with a full charge and charge it once a month.
  • Page 44: Front Fork Maintenance

    Front Fork Maintenance ◆ Always use a clean, oil-free lint-free cloth with plain or soapy water to clean your bike. To prevent water from flowing into the front fork, you can turn the bike upside down. Dry with a lint-free towel after washing. Pay specific attention to the inner tube and the dust seal to reduce wear and prevent thinning of the inner tube, which can lead to significant damage if the aluminum is exposed to air.
  • Page 45 CAUTION: Cleanliness is a very important part of any maintenance of the Tektro hydraulic disc brake. If the pads or rotor become contaminated with oil or if the hydraulics become contaminated with impurities, braking performance will be greatly impaired. Use only Tektro brake fluid with the Tektro hydraulic disc brake.
  • Page 46 Step 5: Attach a section of plastic tubing with knurled silver bleed fitting to your syringe (supplied with bleed kit). Fill Syringe halfway with Tektro Mineral Oil. Hold the Syringe vertically with the tip up and tap out any air bubbles. Install the knurled silver bleed fitting (supplied with the bleed kit) into the caliper bleed port.
  • Page 47 Step 8: Start filling the brake with new mineral oil by slowly pushing the syringe. Air bubbles m a y com e out of the reservoir. Continue pushing fluid until you no longer see bubbles coming out of the tube .(See 4 d ) Step 9: Remove the plastic b a g or collection bottle, section of tube, and knuried bleed fitting from the brake lever reservoir.
  • Page 48 If there is lasered "5.0mm Pad" and (or) “2.3mm rotor only" or "E.2.3" on the caliper of your hydraulic disc brakes, please make sure to replace your brake pads and rotors according to the original setup of each model. You can find more information about 2.3mm rotors and 5.0mm pads on TEKTRO website. (See 4i).

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