Bicycles

Desperado e-bike features two motors, and 80 km/h top speed

Desperado e-bike features two ...
Ivan Tulupov with Desperado
Ivan Tulupov with Desperado
View 8 Images
Desperado tips the scales at 43 kg (95 lb), and cost Tulupov about $3,000 to build
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Desperado tips the scales at 43 kg (95 lb), and cost Tulupov about $3,000 to build
Desperado is built around an existing pedal-powered beach cruiser bike, made by California-based bicycle manufacturer Nirve
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Desperado is built around an existing pedal-powered beach cruiser bike, made by California-based bicycle manufacturer Nirve
Power is supplied by a 20-Ah lithium-ion battery, that can be charged in about two hours
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Power is supplied by a 20-Ah lithium-ion battery, that can be charged in about two hours
The Desperado's quirky drivetrain
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The Desperado's quirky drivetrain
Gear-shifting is handled by an 8-speed Shimano Nexus SG-8R20 rear hub transmission
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Gear-shifting is handled by an 8-speed Shimano Nexus SG-8R20 rear hub transmission
Basic functions are controlled using a 5-button control panel
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Basic functions are controlled using a 5-button control panel
Performance data is displayed on Ivan's Samsung Galaxy Note
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Performance data is displayed on Ivan's Samsung Galaxy Note
Ivan Tulupov with Desperado
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Ivan Tulupov with Desperado
View gallery - 8 images

In many parts of the world, electric bikes are limited to a top speed of 20 mph (32 km/h) – any higher, and they'd no longer be legally classified as bicycles. While that may keep the speed down on commercially-produced e-bikes, such is not the case with one-offs. A case in point is Russian blogger Ivan Tulupov's twin-motored Desperado.

Desperado is built around an existing pedal-powered beach cruiser bike, made by California-based bicycle manufacturer Nirve.

Tulupov, however, has added two external motors with gearboxes, both made by Headline Electric. Left- and right-hand throttle switches allow the motors to be controlled separately, although it's also possible to control them both via one throttle. Their combined 5-kW output makes a calculated top speed of 80 km/h (50 mph) possible, although Ivan informs us that he has yet to put that to the test.

The Desperado's quirky drivetrain
The Desperado's quirky drivetrain

Power is supplied by a 20-Ah lithium-ion battery, that can be charged in about two hours. It has a range of about 80 km at 30 km/h (50 miles at 19 mph) or 25 km at 60 km/h (15.5 miles at 37 mph).

Data such as current, voltage, speed, and GPS coordinates can be displayed on a linked Android smartphone, with basic functions being controlled using a 5-button control panel. Gear-shifting is handled by an 8-speed Shimano Nexus SG-8R20 rear hub transmission.

Desperado tips the scales at 43 kg (95 lb), and cost Tulupov about US$3,000 to build.

View gallery - 8 images
6 comments
matthew.rings
Want. Need. Either market it or give the world your open-source plans. Would be a blast to build this!
Nairda
"Desperado tips the scales at 43 kg (95 lb), and cost Tulupov about US$3,000 to build." Not too heavy for what it is. If it costs him that much to build how much to sell to the public? Also you can get after market electric kits for bikes that might not be the bees knees, but between $300-1000
Ivan Tulupov
It is custom e-bike, all electric components you can buy online. US$3,000 is cost including Nirve Cannibal bicycle, motors, controllers, battery etc. bicycle ~800usd, motors & controllers ~1000usd, battery and charger ~1000usd.
Dawar Saify
Great job ivan
Gary Richardson
Where is the video link? I'd like to see it in motion if available...
Ivan Tulupov
I have a video, but it is a bit boring, Weather was not good for it and I had no time to make a clip with sun, fun and speed :) I will make it in next year. Video can see here http://epowerbikes.ru/archives/1999