Original DBS Touring (not mine)E-scooter
OwnerTom R Simenstad
Owner's Other EV2000 Th!nk City
LocationOslo, Oslo Norway map
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Vehicle1987 DBS Touring
Electric assist bicycle. Make: DBS (short for The Best Bike in Norwegian), by Jonas Ogland Inc, Sandnes, Norway. Trainer racer with narrow wheels, rams' horns handle bars and inside drum brakes front and rear.
E-scooter salvaged from the trash with dead battery less charger. I thought I could put the motor on my bike and use it as a proof project before I take on to something bigger like converting a car.
MotorUnite Motor MY1016 Permanent Magnet DC
24V, 14A, 250 W (that does not compute to me), 2,500 RPM. Scavenged from E-scooter.
DrivetrainPedal side: original Shimano Positron FH-400 5-speed chain drive with free wheeling.

Electric side: Two stage (11:55 and 16:38), single speed chain drive with free wheeling.
Controller 3 relays
E-scooter's CT-802B9 controller was burnt, so I plan to use 3 relays to connect 12V parallel or 24V series.
Batteries2 Techzone TZ12120D, 12Ah, 12.00 Volt, Lead-Acid, AGM
The batteries came to life after charging with constant current for 3 days; it started off with more than 20 volts (on a 12V battery).

Plan to upgrade to lithium.
System Voltage24 Volts
ChargerCTek 2 x Zafir 90
Intelligent 12V, 3.3A chargers, one for each battery. Recharge time 3 hours (expected).
HeaterLegwork, helmet and gloves.
DC/DC Converter None
May tap 12V for lights from the best battery or use separate LiPo battery (from my model airplane) for lights.
InstrumentationHurét speedometer with odometer scavenged from my old bike, 12V voltmeter and inside/outside temp scavenged from my Th!nk; 1-0-1 DPDT switch to check both batteries.
Top Speed16 MPH (25 KPH)
Theoretic electric assist top speed comply with Norwegian law of 25 KPH at which speed the intermediate sprocket free wheel takes action.
AccelerationDepends of the rider.
RangeAs far as I bother to pedal.
EV Miles
Start:4,310 Miles (6,934 Kilometers)
Current:4,310 Miles (6,934 Kilometers)
Total:0 Miles (0 Kilometers)
Seating Capacity1 adult
Curb Weight66 Pounds (29 Kilograms)
estimated.
Bike: 18 kilograms
Motor: 1.968 kilograms
Battery: 4.072 kilograms each
3 relays, cables, battery trays, etc
TiresSemperit Sport 37-584,
26"x1 3/8"x1 1/2",
wide white wall.
Conversion TimeStill counting.
Conversion CostConstantly increasing despite $0 intention.
Additional FeaturesUpgraded original lights from 6V CarbonZinc primary battery to 11.1V LiIon secondary battery (borrowed from my electric powered model airplane) and LEDs tail light. Headlight unmarked, tail light marked "bumm 326".

Plan to use the Left-0-Right switch from the E-scooter for 12V/24V drive voltage[Think of it as Low-0-Race] and the horn button for a dead mans button. Light switch from E-scooter is implemented with 12V light system.
The DBS Touring's original rams' horns handle bars made my back hurt from leaning forward and my neck hurt from looking up. I scavenged T-type handlebars from a Peugeot 050 bicycle. The handles from the E-scooter with several switches fit the Peuguot handlebars.

Under construction.

code by jerry