How To Build An Electric Motorcycle Ep 3: Wiring, Brakes & Seat

How To Build An Electric Motorcycle. Get the plans: https://renewablesystemstechnology.com/electric-streetfighter.html
In this video I install the brakes & electrical system in the bike, and make the seat. If you missed parts 1 & 2, you can watch them here:
Pt 1 Chassis & suspension - https://youtu.be/qdUaAszHZd4
Pt 2 Fairing - https://youtu.be/ZydUE797kBc

Bike specs:
Power: 12 kw/ 24 kWp, 32 hp gross
Motor: QS273 70H brushless hub motor
Battery: 74V/4.3 kWh Li-Po
Range: up to 100 km's
Top speed: ~115 kph (71 mph) @ 72V, 150 kph (93 mph) @ 120V
Max torque: 350 Nm (258 ft-lb)
Controller: Kelly KLS72601
Wheelbase: 55" (140 cm)
Rake angle: 26°
Trail: 4.9" (124.5 mm)
Turning radius: 72" (183 cm)
Weight: 300 lb (136 kg)
Front suspension travel: 5" (130 mm)
Rear suspension travel: 8" (203 mm)
Front tire: 120/70-17 Shinko 705
Rear tire: 180/55-17 Metzler Karoo Street

Electrical components:

72V motor
https://www.qsmotor.com/product/17-inch-12kw-hub-motor/

KLS72501 controller
https://www.kellycontroller.com/shop/kls-8080h/

72V/400A contactor
https://www.kellycontroller.com/shop/kzj-400a/

LiPoFe4 cells
https://batteryhookup.com/products/100-brand-new-lifep04-32650-3-2v-6000mah-cells

24S (72V) LiFePo4 BMS
https://www.aliexpress.com/item/32851397187.html?

72V-12V Converter
https://www.ebay.com/itm/Pro-Chaser-DC-DC-48V-60V-72V-Converter-Regulator-Step-Down-to-12V-120W-10A-/223130933726

12V horn
https://www.ebay.com/itm/12V-Loud-105db-Motorcycle-Car-Electric-Bike-ATV-Horn-replacement-with-Bracket-US/193074643965?

12V turn indicators
https://www.ebay.com/itm/12v-Flowing-LED-Motorcycle-Turn-Signal-Indicators-Blinkers-Amber-Light-Scooter/312746782364?

12V/18W LED bar lights
https://www.ebay.com/itm/LED-Work-Light-Bar-Spot-Flood-Roof-Lights-Driving-Lamp-Offroad-Car-SUV-ATV-18W/313191449785?

12V LED brake light
https://www.ebay.com/itm/2x-Bendable-2835-SMD-Red-Amber-17-LED-Strip-Lights-Tail-Turn-Signal-Brake-Lamp/222206388002?

Sicass Racing handlebar switch
https://www.ebay.com/itm/Sicass-Racing-Multi-Function-Handlebar-Switch-26-042/324309545679?

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