Super73 S1 Owner's Handbook: Assembly and Maintenance

Welcome

Please read this owner's handbook carefully before using your Super73 to become familiar with its controls, features, capabilities, and limitations. This handbook includes safe riding tips but does not cover the skills needed to ride an electric bicycle safely.

Join the Supersquad community of riders online:

• Instagram: instagram.com/Super73
• YouTube: youtube.com/c/Super73
• Facebook: facebook.com/groups/Super73owners/

Tag us: @Super73 #Super73

Contact Super73

North America:

SUPER73, Inc.
16591 Noyes Ave, Irvine,
California 92606, United States
+1 (814) 747-9072
customercare@super73.com
www.super73.com

Europe:

SUPER73
Industrieweg 61
1115 AD Duivendrecht, Netherlands
0031 (0)20 30 800 73
customercare-eu@super73.com
eu.super73.com

This handbook was drafted in English and may have been translated. Always store this manual with your Super73. Information is based on the latest available data at printing. Updates may occur; visit www.Super73.com for periodic tech updates.

Copyright 2020 Super73, Inc., V23. Updated 05/2020.

Mission Statement

SUPER73 exists to create adventure and community. We strive to bolster adventurous exploration through innovation, create positive and forward-thinking experiences with integrity, and cultivate enthusiastic support and vision for the community.

General Information

Please note the following symbols:

• ⚠️ WARNING!: Warnings, precautions, and potential risks associated with the use of your Super73.
• ? Danger!: Possible dangers for your life and health if calls to action are ignored.
• ? Tip!: Recommendation or meaningful additional information.

Perform a safety check before each use as described in the "Pre-ride Safety Check" section (pg. 15). If uncertain about configuration after assembly, contact your retailer or Super73. If instructions are beyond your skill set, we recommend consulting a certified E-Bike specialist or professional cycle mechanic.

This handbook covers assembly and maintenance requiring frequent intervals for safe operation. Never perform work beyond these instructions. It is not a comprehensive service or repair manual. Do NOT ride if incorrectly assembled. Maintenance beyond this handbook should be handled by a specialist. Riding an incorrectly assembled bike risks your safety and others'.

Diagram of the Super73 S1

The Super73 S1 features several key components. At the rear, you can see the Tail Light, Battery, Rear Dropout, Crank Set, and Bottom Bracket. Towards the front, the diagram shows the Headlight and the Front Dropout.

Legal Requirements

Please check your country or state's regulations on electric bikes regarding age limit, speed, motor wattage, and road accessibility. Visit peopleforbikes.org for more information.

In most European countries and Australia, public traffic rules for bicycles apply to e-bikes up to 25 km/h, with some differences (e.g., age limit). More information can be found here.

For the latest assembly and maintenance information, visit the support section of www.Super73.com.

Intended Use

No liability or warranty is accepted if use deviates from intended use, safety instructions are ignored, the bike is overloaded, or faults are not rectified. Assembly errors, willful intent, accidents, or failure to follow care and maintenance specifications also void warranty. Modifications or alterations to the electrical system (tuning) void all claims.

• Your Super73 electric bike is designed for use on paved paths only. Do not ride on stairs, jump, or perform wheelies.
• Super73 electric bikes are not approved for competitions.
• Commercial use is not part of the intended use.
• Operation parameters, maintenance, guidelines, and service instructions in this manual are part of intended use.

Observe the permitted overall weight of 275 lbs (124.74 kg).

? DANGER! Riding beyond intended use risks accident, serious injury, or death, and injury to others.

Unpacking Instructions

? DANGER! Read instructions entirely before assembly to ensure proper functioning. Failure could result in serious personal injury or bike damage.

? VIDEO View assembly video at www.super73.com/support.

• Do not open the box from the top.
• A second person is recommended for unpacking and assembly.

1. Remove the accessories box and protective foam inserts.
2. Use two people to lift the bike out of the box onto a clean, flat surface.
3. Remove all protective packaging and prepare for assembly.
4. Read all assembly instructions before beginning.

If damage occurred during transit, submit photos to customercare@super73.com.

In the Packaging:

• 1 x Lithium-ion battery
• 2 x Keys for the battery
• 2 x Reflectors
• 1 x Battery charger
• 1 x Set of pedals
• 1 x Two-sided open-end wrench (15mm and 13mm)
• 1 x 5mm hex wrench

Additional Recommended Tools:

• 2.5 mm hex wrench
• 4 mm hex wrench
• Bicycle Grease

Good to Know:

• Handlebar mount bolts are M6 X 12mm socket head cap screws.
• Right pedal is marked "R", left pedal is marked "L".
• A 5mm Allen key can adjust brakes.
• Tire tubes are 20"x 4.25" or 20"x 4" with Schrader valves.

? DANGER! Before any work, turn off the power system and remove the battery. This also applies during transport. Involuntary activation of the electrical system risks damage or injury.

Assembly Instructions

? DANGER! Do not ride if the bike has not passed the pre-ride safety check (pg. 15).

1. Handlebar Installation

A. Use the 5mm hex wrench to remove the handlebar clamp bolts.

B. With the clamp open, place the handlebar crossbar in the top fork crown groove.

C. Loosely tighten the clamp with the 5mm hex wrench, adjusting the handlebar angle for rider comfort.

D. Cross-tighten the clamp bolts from corner to corner, ensuring it is evenly placed, tight, and the handlebars do not move.

(Diagram description: Step A shows a hand using a 5mm hex wrench to loosen bolts on a handlebar clamp. Step B illustrates placing the handlebar crossbar into the top fork crown. Step C shows loosely tightening the clamp with the wrench and adjusting the handlebar angle. Step D depicts cross-tightening the clamp bolts to secure the handlebar.)

2. Install Pedals

A. Install and tighten pedals using the 15mm open wrench. Ensure the left pedal ('L') is on the left crank and the right pedal ('R') is on the right crank.

B. The right pedal screws clockwise; the left pedal screws counter-clockwise.

? TIP Apply a small amount of bicycle grease to pedal threads before installation.

(Diagram description: Image A shows the left 'L' and right 'R' pedals. Image B shows a hand using a 15mm open wrench to screw a pedal into the crank arm.)

3. Tire Inflation

Tires are partially inflated for transport. Inflate using a Schrader valve pump to 18-25 psi (1.24-1.72 bar).

A. Inflate to a maximum of 30 PSI (2.06 bar) to seat the tire properly in the rim.

B. Once seated, deflate to the recommended 18-25 psi (1.24-1.72 bar). PSI may vary based on rider weight and terrain.

? TIP Inner tube size is 20"x 4.25" for both front and rear tires.

(Diagram description: The image shows a close-up of a bicycle wheel with a Schrader valve, indicating tire inflation.)

4. Headlight Installation

A. Locate and remove the two headlight mounting screws from the crown.

B. Align the headlight mounting bracket with the two holes on the top fork crown and loosely tighten the screws.

C. Use a 5mm allen wrench to tighten the mounting screws, securing the headlight.

D. Connect the yellow higo plug to the controller by aligning the arrows and pushing them together. The headlight is ready.

(Diagram description: Step A shows a hand removing mounting screws from the fork crown. Step B shows aligning the headlight bracket with holes on the fork crown. Step C shows tightening the mounting screws with a 5mm allen wrench. Step D shows connecting the yellow plug to the controller.)

5. Charge the Battery

? TIP For the first charge, we recommend 6-8 hours to condition the lithium-ion cells.

The battery can be charged mounted on the bike or separately. Two keys are provided to lock/unlock the battery.

A. Plug the charger into a 120v (or 220v EU) wall outlet.

B. Connect the charger cable to the battery charging port.

C. Turn the battery on by pressing the power button. The battery is on when the button is in the "—" position. It will not charge if switched off.

The charger LED turns red during charging and green when fully charged.

A. Turn the battery off.

B. Remove the charger cable from the battery port.

C. Replace the protective cap on the battery port.

D. Unplug the charger from the socket.

⚠️ IMPORTANT Ensure plenty of ventilation and a dry, fireproof environment for the charger. Follow operating instructions.

• Do not leave the battery connected to the charger for more than 48 hours.
• Do not leave the charger connected to a socket for more than 48 hours.
• Charge and use the bike at least once every 90 days.
• Do not store the bike with an empty battery for more than 24 hours to prevent deep discharge.
• Do not use a damaged charger, cable, or connector.
• After charging, if the battery remains connected, the charger LED may cycle green. This is normal. Do not exceed 48 hours of connection.

? TIP More information on battery care and range is in the Maintenance and Components section (pg. 24).

Battery Range

Power output varies by battery capacity. If your battery is at 20%, it will have less power than a fully charged one. If shipped with the battery, charge it fully first. Batteries are not fully charged from the factory due to air/sea legislation. Full charge is indicated by a green LED on the charger.

? TIP More information on range and performance is in the Maintenance and Components section (pg. 25).

Assembly is Finished!

Before your first ride, verify your bike is safe using the Pre-ride safety check (pg. 15).

(Image description: A Super73 S1 electric bike is shown, fully assembled.)

Register Your Super73

All original owners must register online to validate their warranty.

Register online at: https://www.super73.com/pages/register

For assistance, call +1 (814) 747-9072.

Record the following information for future reference:

• Location or website of purchase: __________________________________________
• Date of purchase: ______________________________________________________
• Model name: S1
• Bike Serial #: __________________________________________________________ (Engraved on the side of the bottom bracket in between the pedal cranks)
• Battery #: _____________________________________________________________
• Battery Key #: _________________________________________________

? TIP Keep your original receipt with this handbook.

Pre-Ride Safety Check

? DANGER! Use this checklist before each ride to ensure your bike is safe. Never operate the bike and use your app simultaneously.

⚠️ IMPORTANT Ensure brakes are applied before getting on. If assistance mode is on, the bike may move when you push the pedal, potentially causing a fall.

Checklist:

1. WHEELS
   • Check tire condition (tread, punctures, cracks, deformations).
   • Maintain proper tire pressure: 18-25 psi (1.24-1.72 bar), adjusted for rider weight and terrain.
   • Ensure wheels are true and properly dished.
2. BATTERY
   • Check battery is securely inserted until it clicks and locks. Remove key and pull to confirm lock.
   • Check battery charge status. Familiarize yourself with charging and storage best practices.

   ? TIP More battery maintenance info on pg. 24.

3. BRAKES SYSTEM
   • Pull both brake levers; they should have an obvious pressure point and not touch the handle.

   ? TIP More brake info on pg. 23.

4. LIGHTING
   • Check front and rear lights are working. Do not cover lights or reflectors.
5. CABLES
   • Look for loose cables.
   • Ensure male and female plugs are properly connected.
   • Check for wiring strain near the fork when turning handlebars.
   • Verify frame wiring is secure and away from moving parts that could cause damage.
6. DISPLAY
   • Check that your display turns on and functions properly.
7. KICKSTAND
   • Ensure the kickstand is tightly secured and not rubbing the ground or tires.

   ⚠️ IMPORTANT Do not sit on a bike with the kickstand engaged.

Operating the Bike

? DANGER! Batteries not fully inserted and locked can fall out, causing a crash and battery damage.

? DANGER! Do not place keys or metal objects in the charging port; this can cause a short circuit, rendering the battery unchargeable and voiding the warranty.

⚠️ IMPORTANT Do not sit on a bike with the kickstand engaged.

1. Powering Bike On

• Disengage the kickstand, engage the brake handles, and sit on the Super73.
• Press the battery power button to turn the bike on.
• Press and hold the power button on the display until it illuminates (1-3 seconds). The throttle is now active.

(Diagram description: Images show the bike's display screen indicating speed and battery status, and the throttle mechanism.)

2. Operating Lights

• The Super73 S1 has a front headlight and rear brake light.
• To activate the front headlight, press the display's power button once. Press again to turn it off.
• The rear brake light illuminates automatically when the bike is powered on. It brightens when brake levers are engaged.

Pedal Assist

To select pedal assist mode:

• Once seated and the display is on, press the "M" button briefly to cycle through modes.
• The S1 defaults to "Throttle Only" (no pedal assistance), with a blank pedal assist section on the display.

Pedal Assist Settings:

• THROTTLE ONLY: No pedal assistance.
• ECO: 20% Speed Power.
• MED/TOUR: 60% Speed Power.
• HIGH/SPORT: 100% Speed Power.

Once pedaling begins, the pedal assist sensor activates the motor to the selected level.

(Diagram description: Images show the bike's display screen with different pedal assist modes highlighted: 'THROTTLE ONLY', 'ECO', 'MED/TOUR', and 'HIGH/SPORT'.)

Braking

The S1 uses Tektro hydraulic brake systems. The right lever activates the rear brakes; the left lever activates the front brakes. Brake levers have sensors that cut motor power when engaged.

Super73 brake orientation:

• Rear brake = right lever
• Front brake = left lever

(Diagram description: The image shows a hand gripping the brake levers, with labels indicating the right lever for the rear brake and the left lever for the front brake.)

Turning Off the Bike

• To turn off the bike properly, switch the battery power button to the "0" position.
• The bike features automatic shut-off after 10 minutes of idle time.
• The battery can be charged while mounted on the Super73 or after removal.

General Warnings

⚠️ IMPORTANT Cycling involves risks. You assume responsibility for potential risks and injuries. Know and practice safety regulations. Proper use and maintenance reduce injury risk. Check local electric bike laws (e.g., minimum age).

Riders need physical condition, reaction time, and mental capability for traffic and road conditions. Respect E-bike laws. If you have an impairment, consult your physician before riding.

? NOTICE Only perform tasks you understand. Pay special attention to general operating rules.

• Obey road laws, yield to pedestrians, stop at lights and signs.
• Contact your local traffic authority or DMV for additional information.
• Use correct hand signals for turning or stopping.
• Concentrate on the path; avoid potholes, gravel, wet/oily roads, curbs, train tracks, and obstacles.
• Walk your bike across train tracks.
• Expect the unexpected (e.g., opening car doors, backing cars).
• Be aware at intersections and when passing others.
• Familiarize yourself with bike features; practice brakes and throttle.
• Secure loose pants with leg clips or bands to prevent chain entanglement.
• Wear proper riding clothes and avoid open-toe shoes.
• Do not carry passengers or cargo that interferes with control.
• Never use your phone while riding.
• Do not use headphones; they impair hearing and awareness.
• Maintain a safe stopping distance.

Wet Weather & Riding at Night

Wet Weather

⚠️ IMPORTANT Do not ride in wet weather. The Super73 is not for puddles, heavy rain, or streams. Never immerse the product in water, as it can damage the electrical system. Exercise extra care in wet conditions; feet/hands can slip, leading to injury. Brake earlier as stopping distance increases. Decrease speed. Wear reflective clothing and use safety lights. Road hazards are harder to see.

Riding at Night

⚠️ IMPORTANT Be safe! It is recommended not to ride at night. Ensure your Super73 has clean, correctly positioned reflectors. Use a functional lighting set (white front, red rear). Wear reflective/light-colored clothing. Slow down and use familiar roads with street lighting.

For Parents and Guardians

⚠️ IMPORTANT Parents/guardians are responsible for child's activities and safety. The Super73 is not designed for use by children under 16. Obey local regulations and always wear a helmet.

Safety

Review these safety notes for safe operation. Failure to do so can lead to serious injury or death.

• Read and understand this manual before first use. Read any additional component manuals.
• Always wear an approved bicycle helmet, following manufacturer instructions. Failure to wear a helmet can result in serious injury or death.
• Ensure correct tightening and setup after assembly.
• Familiarize yourself with local laws and requirements for operation.
• Ensure handlebar grips are not damaged or loose; this can cause loss of control.
• Off-road riding requires attention, skills, and appropriate gear. Do not ride alone in remote areas.
• Bicycles have strength limitations; avoid extreme riding to prevent damage or injury.
• After any incident, consider the bike unsafe until inspected by a professional cycle mechanic.
• Improper battery charging, storage, or use voids warranty and can be hazardous.
• Use extreme care with pedal assist and propulsion. Understand how power assistance engages.
• Check brake inhibitor switches before each ride; they shut down motor power when brakes are engaged.
• Understand throttle and pedal-assist levels. Use the lowest assist level until comfortable.
• E-bikes are heavier and faster; require extra caution.
• Do not remove reflectors.
• Be familiar with local e-bike laws.
• Unauthorized aftermarket changes void warranty and create unsafe riding conditions.

Maintenance Schedule

? DANGER! Intensive use can damage the frame and fork. Inspect for cracks, as a broken frame/fork can cause accidents and injury (refer to Intended Use, pg. 8).

To prolong bike life, follow this maintenance schedule:

1. Before and After Each Ride:

• Check wheel alignment.
• Check battery charge status.
• Check brake function.
• Check tires for punctures and wheels for alignment.
• Store the bike in a clean, dry place.
• Check kickstand security.
• Check for loose cables/wires strained by handlebar movement.

2. Every Month:

• Inspect handlebar and steer tube for unusual movement.
• Check cables, tires, and handles.
• Check brake rotors and pads for wear; replace if necessary.
• Check spoke tension and wheel trueness/dish.
• Lube the chain and check its tension.

3. Every Six Months:

• Inspect frame and fork for cracks.
• Check bottom bracket and crankshaft; tighten crank bolts.
• Check and grease wheel hubs, headset, and all friction points.
• Grease suspension components and tighten hardware.

? TIP If maintenance procedures are beyond your skill set, consult an E-bike specialist or professional cycle mechanic.

Washing and Caring for Your Bike:

Dirt, salt, and elements can damage your bike. Clean regularly and protect against corrosion. Use clear water and mild soap for grease. Do not spray water directly; use a damp cloth. Dry thoroughly and treat surfaces with a care product. Wipe all parts with a clean, soft cloth.

⚠️ IMPORTANT Do not use high-pressure water jets or steam jets, as water can enter bearings, diluting lubricants and increasing friction, leading to bearing surface deterioration.

Maintenance & Components

? DANGER! Before working on electronics, turn off the system and remove the battery. Involuntary activation risks injury.

Tires / Wheels

The S1 uses 20" x 4.25" tires with inner tubes and rim liners. Tire size is 20" x 4.25" or 20" x 4" for front and rear. Tires are designed for durability and safety. Check tires before each use for inflation and condition.

Proper inflation, maintenance, and timely replacement ensure optimal performance and safety.

Inflate tires to 18-25 psi (1.24-1.72 bar) using a Schrader valve pump. Check tires and rims for damage. Minimal wheel nut torque is 25ft/lb (33.89 N m).

Maintain proper tire pressure to avoid loss of control or tire bursts. Failure to maintain pressure can lead to tire/wheel failure.

Inflate from a regulated air source with a manometer. Unregulated sources can over-inflate tires. Replace worn or damaged tires/tubes promptly to prevent injury or damage.

⚠️ IMPORTANT Correct wheel alignment reduces tire wear. If a tire wears unevenly, have a professional mechanic check alignment.

Chain Tension

There should be about half an inch of chain movement up and down midway between sprockets. To adjust tension, loosen axle nuts, move the wheel forward/backward, and retighten bolts.

Helmets / Reflectors

Wear an ANSI, SNELL, or CE approved bicycle helmet at all times. Ensure it fits properly and covers the forehead. Comply with local laws regarding safety devices.

Reflectors are integral safety devices required by federal regulations (front, rear, wheel, pedal). They reflect street and car lights to make you visible. Check reflectors and brackets regularly for cleanliness, straightness, and secure mounting.

Brakes

⚠️ IMPORTANT Brakes are crucial and must be maintained, adjusted, and replaced. If unsure, consult an E-bike specialist or professional cycle mechanic.

Hydraulic brake lines need maintenance on pads, rotors, and lines. Check rotor/pad contact after pad replacement.

Super73 bikes use Tektro hydraulic disc brakes for optimal performance. See adjustment videos at www.Super73.com/pages/owners or Tektro manuals at www.tektro.com.

Brake orientation: Rear brake = right lever, Front brake = left lever.

Brake Models: tektro.com/products.php?p=242

Brake pads: tektro.com/products.php?p=226

Pad wear is compensated automatically. Check pad/disc alignment and ensure the wheel is fully pushed back for proper function and reduced noise.

Avoid contaminating pads and discs with grease. Check cables, ducts, harnesses, and pad wear. Use only "resin" pads with discs marked "Resin"; do not use metal pads.

Adjust brake levers for ergonomics and safety. Contact Super73 with questions.

New Brake Pad & Rotor Bed-in Process

When replacing pads or rotors, proper bedding is essential for performance. Accelerate to 20mph, then brake to a near stop. Repeat 8-10 times to ensure even pad wear and remove contamination.

Replacing the Pads:

1. Pads and holders are secured by a 3mm retainer bolt. Unscrew the bolt and gently push out pads/holder. An Allen wrench may help.
2. Once free, pads can be removed from the holder.

Battery

⚠️ IMPORTANT The battery is the most critical component. Follow these rules to optimize its life:

• Do not store a discharged battery; it can lead to deep discharge, reducing its life.
• Recharge at the end of each ride to ensure readiness.
• Store batteries at room temperature (65°-75°F / 18°-23°C) for optimal shelf life, though they withstand 23°F - 104°F (-10°C - 40°C).
• Observe operating conditions between 40°F - 85°F (4°C - 30°C).
• Avoid prolonged exposure to high temperatures or direct sunlight.
• Keep contacts clean and do not insert metal objects.
• Dispose of lithium-ion batteries properly according to local waste management regulations; do not discard in trash.

? DANGER! Do not open the battery. Risk of short circuit and warranty void. Protect against mechanical damage, heat, fire, and water immersion. Risk of explosion. Keep children away.

? TIP Follow charging instructions on pg. 12. Use only the original or manufacturer-approved charger. Disconnect charger when complete.

Range

Maximum range depends on battery age, terrain, incline, rider weight, speed, temperature, riding style, pedaling, and tire pressure.

Range in Cold Weather:

• Range is reduced in extreme cold; this is normal. Energy increases as temperatures rise.
• Store and charge the battery at room temperature during cold days.
• In winter, plan shorter trips or use lower assistance levels.

Conditions Affecting Battery Range:

• Temperature: Extreme cold/heat affects capacity.
• Charge Cycles: Capacity decreases with age; the battery has 1,000 full cycles when new.
• Wind: Headwinds decrease range.
• Road Conditions: Rough or hilly terrain consumes more power.
• Load: Carrying cargo uses more energy.
• Rider Weight: Max weight is 275 lbs (124.74 kg).
• Acceleration: Frequent acceleration from a stop uses more energy.
• Maintenance: Under-inflated tires, poor brake adjustment, or a dry/dirty chain decrease range.

Tips for Maximizing Range:

• Charge battery between 65°F - 75°F (18.3°C-23.9°C).
• Lithium-ion batteries have no chemical memory; partial charging is fine.
• Maintain proper tire pressure and lube the chain.
• Operating temperatures between 40°F - 85°F (4°C - 30°C) increase range.

? DANGER! Never charge the battery in a flammable environment. Place charger and battery on a dry, non-flammable surface.

? DANGER! Never charge or use a defective battery. Do not mail batteries; they are hazardous goods requiring certification. Improper mailing is punishable by law.

If damage to the electrical system is noticed, immediately remove the battery and contact Super73 or an E-bike specialist. Lack of expertise can cause injury.

Lighting System

The S1 lighting system is wired into the main harness. For replacement, disconnect front and rear light cables. Ensure lights are clean before riding. Clean dusty/dirty lights with a damp cloth.

Seat

The Super73 seat height is fixed and cannot be adjusted. Minimum seat clamping torque is 6.78 Nm (5 lb/ft). For cleaning, use a damp cloth with mild soap. Avoid prolonged sun exposure, which can damage the fabric. Avoid clothing that could puncture or tear the seat.

⚠️ IMPORTANT The bike is subject to wear and tear. Materials react differently to wear. If a part's intended life is exceeded, it may fail suddenly, posing a danger. Cracks, streaks, or color changes indicate wear and require immediate replacement with genuine, specified parts.

Warranty

1. Warranty

Super73 warrants the original retail purchaser that the frame, fork, electronics, and battery are free from defects in material and workmanship for one (1) year from delivery (Limited Warranty). This covers defects present at delivery, including battery, motor, controller, display, and sensors. Battery capacity decreases over time with use. The battery warranty excludes damage from power surges, improper chargers, water, maintenance, misuse, or normal wear. Warranty is valid for the first buyer only. Other remedies are excluded.

2. Remedies

If a warranty claim is made within the warranty period, Super73 will evaluate it. The purchaser is responsible for shipping the bike. If the defect is covered, Super73 will repair or replace the part at its discretion and reimburse shipping costs. If not covered, the purchaser pays for repair/replacement and shipping.

3. Requirements for this Limited Warranty to Apply:

• Proof of purchase from Super73 or an authorized dealer/distributor.
• The claimant is the original owner (warranty is not transferable).
• The bike was used according to its intended purpose (paved roads).
• Electronics, connectors, and cables have not been repaired or modified.

For more warranty information, contact customercare@super73.com.