BEM® SAVITRÉ™ SOLAR ON TATA® STRYDER ROWER™ BICYCLE:
Fully Assembled Solar Electric Cargo cum Commute Bicycle, 26" MTB  with 40W tiltable Solar Panel with suspension, 250W BLDC Motor, Throttle and 5 Speed Pedal Assist Modes, Cruise Control, 36V, 5.2Ah External Battery, Dual Disk Brakes, Front Suspension, Integrated Rear Carrier, 26" x 2.125" Tires, Controller, Headlight, Tail Parking light, Brake light, Horn, 2" LCD Display, Mirror, Bell, Switch Key Lock, Cable Lock, Center Stand, 2A Solar MPPT Charge Controller & other Fittings - for  

₹ 24,990 (all incl.)!

BEM® Savitré - BEM's Solar retrofit on Tata® Stryder-Rower™ Bicycle

BEM® Savitré™ 

BEM® Solar-Bicycle Description

The BEM® सवित्रे™  Savitré - Solar bicycle is different from all other electric vehicles with respect to its charging needs.  The Solar bicycle does not need to be plugged into an electric socket for charging!  No need to hunt for an electric socket at your destination or place of work. Simply park the bicycle with the solar panel facing the sun for approximately 4 hours to recharge the battery of the e-bicycle after  25 kms of daily travel. 

Harness solar energy even while travelling. During day travel, the DC motor of the Solar bicycle usually draws only 80% to 85% of the total current requirement from the Li-ion battery while the Solar panel supplies the rest (15% to 20%). Reduced burden on the battery means longer life of the battery.  The slower charging process over 6 hours under the sun is also recommended to enhance the battery life. (In sharp contrast, fast charging from electric outlets reduces battery life). 

Looking for a low loss charging solution for your E-bicycle? A 230 Volt AC to DC conversion is inefficient. Introducing the higher efficiency DC to DC (Solar to Battery) conversion with Maximum Power Point Tracking (MPPT) for faster charging with a smaller solar panel. 

BEM® Savitré - BEM's Solar retrofit on Tata® Stryder-Rower™ Bicycle

Once the LCD Panel is ON and lit, you may press on the power button to select one of the following 4 display modes: 

USER'S MANUAL

Odometer (reads 00000 km)

Trip km (reads 000.0 km)

Battery Voltage (reads 41.2 Volts)

Time Elapsed MM:SS (reads 02:33)

Pedal Assist Level 1

Pedal Assist Level 5

Brake symbol with ! mark indicating either of the 2 Brake Levers pressed

Cruise Control (P) Mode - Hands Free from Throttle, Speed steady at 24.9 km/h

BEM® सवित्रे™  Savitré MPPT  Solar Charge Controller with RED and GREEN LED Indicators (comes fitted on the solar bicycle)

BEM® सवित्रे™  Savitré MPPT  Solar Charge Controller with OLED Display (Optional - available at an extra cost of ₹ 550 (inclusive of GST) in lieu of the Basic model with only LED indicators.)

BEM® सवित्रे™  Savitré MPPT  Solar Charge Controller

SOLAR 12V DC to 42V DC, 2A Charger

Input Voltage: 12 - 22 Volts DC,
Input Current: < 2.3 Amps (Max.)
Input Power: < 40 Watts (Max.)

Output Voltage: 42 Volts DC (Max)
Output Current: 1 Amps (Max.)

Indicators:
RED LED GREEN LED STATE
OFF OFF NO SOLAR INPUT
FLASHING FLASHING IN TRANSITION
ON FLASHING CHARGING STATE
FLASHING ON FULL STATE
ON ON ERROR STATE*

*Error State means Battery Management System (BMS) may be refusing further Charge though the FULL Battery Voltage has not been reached. 

About the BEM® सवित्रे™  Savitré MPPT  Solar Charge Controller

The BEM® सवित्रे™  Savitré - 2 Amps MPPT  Solar Charge Controller consists of MPPT digital controller and photovoltaic drivers and is designed to control high efficiency DC/DC conversion used in photovoltaic based Li-Ion battery charging application. It is a 2 Amps (Max.) Solar True Maximum Power Point Tracking (MPPT) algorithm based charger for 37 Volt (Nominal), 42 Volt (Maximum) Li-ion battery. This charger provides you with the ability to extract the maximum possible power out of your Solar panel of rating 12 Volt, 40W, and feed it into the  rechargeable Li-ion battery. This means that the E-Bicycle battery would get fully charged in the shortest possible time with a smaller sized (lower cost) Solar panel.  Recommended size of solar panel is 12V, 40W that can be easily fitted on the rear carrier of a standard bicycle 

Set-up is easy as well. Simply, plug the solar panel into one (input) side of the solar charge controller and the e-bicycle battery into the other (output) side, then Switch ON the charger and the battery would start charging at the fastest rate! Ensure that the solar panel is facing the sun, avoid shadows, and keep the panel surface clean for best performance.   

Optional Accessory: The AC to DC Charger is not included with the  BEM® Savitré™ Solar Bicycle. It is available at an extra cost of ₹ 1,200 (inclusive of GST).

AC to DC Charger (Optional)

230V AC to 42V DC, 2A Charger

Input Voltage: 170 - 280 Volts, 50 Hz  AC
Input Current: < 1 Amps (Max.)

Output Voltage: 42 Volts DC (Max)
Output Current: 2 Amps (Max.)

Indicators:
MAINS : LED always RED when input ac mains switched on

BATTERY : LED when RED : indicates Charging State
LED when GREEN: indicates Fully Charged State. 

Charging time from AC mains: < 2 hours

Salient Features of BEM® Savitré Bicycles : 

Front Side view of the Solar Panel

Rear side view of the Solar panel

Rear view of the Solar panel and LED Light

Side View of Solar Bicycle

Powerful Brake Light - for Safety

Tail (Red) Parking Light  - for Safety

Front Suspension - For comfort

Cargo Safety - Blue (Lexan) Cargo Guard Plates 

Three Operation Modes in BEM® Savitré Bicycles : 

Tip: Apply brakes only when  needed. Applying brakes unnecessarily wastes energy.

BEM® Savitré - BEM's Solar retrofit on Tata® Stryder-Rower™ Bicycle

Big 2 inch LCD Display - for better clarity 

Powerful Head Light & Horn for Better Visibility & Safety

Powerful 250W BLDC Motor 

Disk Brake - Rear - for reliable braking action & Safety 

Specifications: 

Disk Brake - Front - for reliable braking action and Safety

Key Lock on Throttle Handle for Electrical  Cut Off & Security

Light and Horn Switches  

Water Bottle Fixture with Bottle - to quench thirst

Safety Features: 

Rear Red Parking Light for Safety

Brake Light in addition to Parking Light for Safety 

Mechanical Bell in addition to Electric Horn for Safety

Rear View Mirror for Safety

BEM® Savitré™ SOLAR ELECTRIC ON TATA® STRYDER ROWER™ Bicycle configuration:


Solar Bicycle Overview

Bicycles are the most common and most numerous (> 2 billion) vehicle amongst any kind of vehicle whether human powered or motorised ever produced by mankind. Invented over 2 centuries back (by the German Karl von Drais in 1817), today we see a major transformation - solar bicycles. 

Currently, solar bicycle is the only electric vehicle that provides a fully sustainable, environmental friendly, motorised solution to one's travel needs (upto 25 kms per day). 

Go cycling! Roam the remote country side! Venture out to areas where there is no access to electricity or petrol pumps! Go where no man has gone before with a Solar Cycle!

Truly Sustainable Living: Be totally off fossil fuels and electric grid. Zero running cost. Travel upto 25 kms/day  with a 40W panel attached to your cycle. Use Solar. Save Mother Earth!

No Registration or Driving License required: Can't get a driving licence for your under 18 teenager? Current regulations state that those between the age of 16 to 18 can obtain a license for driving a 2-wheeler with engine capacity less than 50 cc. Many teenagers aged 17 years or less are observed to be illegally riding a registered vehicle, with engine capacity of 100 cc or higher, at high speeds contributing to higher rate of accidents on Indian roads.  Best answer is to ride to school with an environmentally sustainable solution - a solar bicycle - whose speed is limited to 30 km/hour. 

Bicycle to Work: Wish to make a transition to a healthy lifestyle? Don't have time to go to a gym?  Ride a Solar cycle to work. Can choose between manual pedalling, power assisted pedalling, or full power throttle without pedalling with a solar bicycle.  

Bring Your Own Panel: As the BYOD (Bring your own device) policy is becoming more popular, carrying your own panel to work has even more advantages. No need to search for a charging point at work. Simply park the vehicle under the Sun and the battery will silently get charged while your work. 

Safety First: In sharp contrast to a fast charging process from the electric utility's ac mains that has resulted in numerous vehicles catching fire, the solar charge process is an safe and elegant one, that is gentle on the batteries and enhances its life too.

Charge while you ride: Keep the Solar charger switched ON while you ride along with your panel. The solar panel will supply approximately 15 to 20% of the BLDC motor's  needs while you ride. This means that the battery would be supplying only 80 to 85% of the energy and thus getting drained less, again enhancing the battery life. This also means that you can  cover larger distances after a full charge.  

Pedal your way back: Run out of battery power? Unlike other e-vehicles you do not get stranded in the middle of nowhere. Pedal back home.

Low Loss / High Efficiency Charging Process: When you charge the battery from a 230 Volt ac electric mains, an AC to DC conversion takes place which is inefficient. This means high temperature - low reliability operation, or requirement for forced cooling or bigger heat sink for the charger.  Many AC to DC chargers are also seen to inject harmful harmonics into the AC system.  Unlike this, the Solar to Battery charge process is DC to DC which is more efficient, which means that the charger can be smaller in size, more reliable, no need for cooling fans, less noise, etc. 

Optimum Charging Process: Unlike other chargers, the solar charger is microcontroller based and intelligent. The ARM controller chooses an optimum - Maximum Power Point Tracking (MPPT) point for the DC to DC (Solar to Battery) conversion for efficient charging with a smaller solar panel that can be carried on a bicycle. 

Charge in the Parking Lot Under the Sun: Staying in an Apartment or an Upper Floor? With Lithium Batteries getting placed inside the bicycle frame it becomes more and more difficult to charge the battery from an electric ac mains point; the entire bicycle needs to be lifted to the Apartment. Unless, you opt for the far more convenient alternative solution - Solar charging in the parking lot under the Sun!

Unique E-vehicle: No other E-vehicle other than a Solar Bicycle can boast of all or any of the above unique features!

Silent Operation: Unlike an Internal Combustion (IC) engine that 'explodes' once every 4 strokes, a BLDC motor offers silent and smooth operation.

Easy Start: An Internal Combustion (IC) engine needs to be cranked to start either with a manual kick or with a battery of a high capacity.  The solar bicycle has a simple start procedure - simply rotate the throttle handle. No kick start. No mis-firing. Saves your knee ligaments! 

Centre Stand: - An Aluminium Alloy centre stand helps take the weight of the solar panel more evenly than a side stand to keep the bicycle in balance in an upright position

Tilt Mechanism - An innovative tilt mechanism for the solar panel is designed around the spring loaded grip of the bicycle carrier. It gives an ability to offer the desired tilt to face the sun for faster charging. The carrier spring also absorbs shocks on a rough terrain such as a mountain road and thus helps protect the delicate solar panel from getting damaged. 

Features for Safer Riding: The retrofit adds safety features such as a powerful headlight, a loud horn, rear view mirror, a continuously ON tail light at the rear, and a powerful brake light on the rear to warn the vehicles behind when brakes are applied.

Low Cost to Upgrade your E-bicycle: Riding your e-bicycle without solar upgrade is not truly environmentally friendly. The low cost BEM Solar upgrade kit gives you the satisfaction that you are doing your bit to save the environment.  

AS 26T ROWER DD IC

SKU:  6025010695

Description: ASSEMBLED SOLAR BICYCLE 26x2.125 MTB ROWER DD IC GRAY941GRN

Maximum Retail Price MRP (inc. GST) : ₹30,000 

Special Ex-Works (ExW) Discounted Price : ₹ 23,800 (+ 5% GST) or

ExW Sale Price: 24,990 (incl. of all taxes)

HSN Code: 87116090

AS 26T Rower IC DD is one of a kind, the road beast is the perfect example of masculinity and style. With trapezium tubing MIG welded frame, Dual disc brakes with alloy levers, chain Wheel with plastic guard, plastic body reflectorized pedal and all the modern features that a super cycle must have. This beast roars masculinity and class.

Accessories

Water Bottle with Cage

BB Fitting

Cottered BB Axle

Brake Levers

Half Alloy

Brakes

Disc brakes

Crank Set

Cottered Chain wheel set with guard

Fork

Threaded Suspension Fork

Frame

26x17 TIG Welded Steel Frame with Normal decals

Freewheel

18 Teeth Full Ball

Handle Bar

Steel MTB Type Lo-Rise Handle Bar

Headset

Threaded Oversize Headset , ED Black

Pedal

Plastic Body reflectorized

Rim

Steel Rim

Saddle

PU Padded with Quick Release

Tyre & Tube

26X2.15 Tyres

Transmission

Single Speed

Bike Assembly

100% (Fully) Assembled

Range/Charge

Range (Pedal assist) < 30*Kms | *Under ideal ride conditions

Battery Placement

External | Removable

Hub

Steel

Battery

36V (Li-ion) | 5.2Ah

Charging time

4*Hours

Display

2 inch LCD Display

Max speed (Without Pedal)

< 30*Kmph

Motor

250W BLDC Hub Motor

Tata® Stryder-Rower™ Bicycle - Colour : Grey + Green 

Tata® Stryder-Rower™ Bicycle (Grey+Green)

Buy Options

1. Buy at Factory Outlet (Best Price)

Ex-Works (EXW) Discounted Price (inc. GST) : 

₹24,990

Save on Shipping + Packaging + Courier charges + E-payment gateway transaction/ convenience fee and purchase the product directly from the works at the Special Ex-Works (EXW) Discounted Price indicated above.

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Pay using Unified Payment Interface (UPI) to our Virtual Payment Address (VPA



bem@cnrb


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Pay using National Electronic Funds Transfer (NEFT)

Name of the Bank: CANARA BANK

Branch :  Station Road, ANAND - 388001  GUJARAT

A/c No. :       71131010000030

IFSC Code:  CNRB0000163

A/c Name:    BARODA ELECTRIC METERS LIMITED

A/c Type :       CURRENT Account

STRYDER - a TATA product.

Manufactured By:

Stryder Cycle Pvt Ltd, Property no.1838,

B3 to B8 & A-4 Focal Point ,

Ludhiana, Punjab -141010