Motorcycles

Sine Cycles adds electric power to the old school chopper

Sine Cycles adds electric powe...
Sine Cycles electric chopper
Sine Cycles electric chopper
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Sine Cycles has opted for an electric powertrain for its custom old school chopper
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Sine Cycles has opted for an electric powertrain for its custom old school chopper
Bruno Forcella on the Sine Cycles electric chopper
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Bruno Forcella on the Sine Cycles electric chopper
Sine Cycles electric chopper
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Sine Cycles electric chopper
Beautiful, clean lines for the battery housing and heatsink that Bruno Forcella practically fabricated by hand
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Beautiful, clean lines for the battery housing and heatsink that Bruno Forcella practically fabricated by hand
Sine Cycles electric chopper
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Sine Cycles electric chopper
Sine Cycles electric chopper
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Sine Cycles electric chopper
Sine Cycles electric chopper
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Sine Cycles electric chopper
Sine Cycles electric chopper
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Sine Cycles electric chopper
Sine Cycles electric chopper
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Sine Cycles electric chopper
A thin 18-inch rear wheel for the Sine Cycles electric chopper
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A thin 18-inch rear wheel for the Sine Cycles electric chopper
A big 21-inch front tire complements the old school look of the Sine Cycles electric chopper
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A big 21-inch front tire complements the old school look of the Sine Cycles electric chopper
The Sine Cycles electric chopper at the 2015 Swiss Custom Bike Show
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The Sine Cycles electric chopper at the 2015 Swiss Custom Bike Show
The Motogadget digital instrument panel sits in a housing 3D-printed by Sine Cycles
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The Motogadget digital instrument panel sits in a housing 3D-printed by Sine Cycles
The Cleveland Cyclewerks frame required considerable modifications to accomodate the new electric powertrain
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The Cleveland Cyclewerks frame required considerable modifications to accomodate the new electric powertrain
With a moderate output and small range, the Sine Cycles electric chopper is designed as a commuter rather than a long distance cruiser
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With a moderate output and small range, the Sine Cycles electric chopper is designed as a commuter rather than a long distance cruiser
Only the top part of the Cole Foster fuel tank was used to house some electrical components
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Only the top part of the Cole Foster fuel tank was used to house some electrical components
Zero Motorcycles' electric motor feeds this huge sprocket, achieving very strong acceleration
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Zero Motorcycles' electric motor feeds this huge sprocket, achieving very strong acceleration
The Sine Cycles electric chopper is a head turner
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The Sine Cycles electric chopper is a head turner
Louis grips and Motogadget switches on the Sine Cycles electric chopper
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Louis grips and Motogadget switches on the Sine Cycles electric chopper
It took a lot of manual work to achieve this finish on the heatsink cooling fins
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It took a lot of manual work to achieve this finish on the heatsink cooling fins
Old school looks for the Sine Cycles electric chopper
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Old school looks for the Sine Cycles electric chopper
The Rich Phillips seat sits on a pair of Lowbrow Customs 2-inch Barrel Style springs
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The Rich Phillips seat sits on a pair of Lowbrow Customs 2-inch Barrel Style springs
A Louis LED rear light is combined with a license plate holder that was custom-made by Sine Cycles
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A Louis LED rear light is combined with a license plate holder that was custom-made by Sine Cycles
View gallery - 23 images

As electric mobility keeps on gathering momentum in the motorcycle sector, chopper manufacturers remain strongly attached to tradition, seemingly reluctant to deviate from the typical V2 engine configuration. Sine Cycles has veered off this beaten track by taking what appears to be a conventional custom chopper design and slotting in an electric powertrain.

SineCycles’ Bruno Forcella loves old school choppers and always dreamed of buildinghis own custom bike. Wishing to differentiate from the archetypal V-twin internalcombustion engine that dominates the custom world, he turned to hisprofessional roots. An electrical engineer by trade, his prior experience indeveloping hardware and software for electric motors steered him naturally towardsa chopper with a modern electric powerplant.

In searchof the appropriate kit for his project he settled on Zero Motorcycles’ powerunit; a modern, commercially proven electric motor. Soon a full electricpowertrain arrived at the Sine Cycles’ headquarters in Steffisburg, Switzerland, complete with customizable performance profiles and a smartphone app withheaps of information such as battery status, charging time, average watts permile and total charge cycles.

With a moderate output and small range, the Sine Cycles electric chopper is designed as a commuter rather than a long distance cruiser
With a moderate output and small range, the Sine Cycles electric chopper is designed as a commuter rather than a long distance cruiser

Thehardtail frame along with the fork, wheels and brakes were outsourced fromCleveland Cyclewerks and in particular from the Heist, one of its most popularmodels. The modifications required in order to fit the new motor into theframe were done in house by Forcella.

A lot of work went into the heatsink design. Made out of five parts of extrudedaluminum, its cooling fins were shaped by hand with electric grinders, beforebeing sandblasted and black anodized. A second grinding of the fins’ outersurfaces provided the visual two-tone effect.

The electricchopper is equipped with a Motogadget digital instrument and switches, LSLDragbar handlebars, Cole Foster fuel tank and Rich Phillips seat. Several partswere specifically made by Forcella, most notably the instruments’ housing whichwas 3D-printed via a selective laser sintering process.

The Motogadget digital instrument panel sits in a housing 3D-printed by Sine Cycles
The Motogadget digital instrument panel sits in a housing 3D-printed by Sine Cycles

The endresult is a beautiful old school chopper with clear lines and a lot ofattention to detail. Fed by a 102 V / 2.8 kWh power source, the single speed motorproduces 27 hp (20 kW) and 57 Nm (42 lb-ft), enough for a top speed of 120 km/h(74.5 mph). With the current battery pack, the maximum range is 55 km (34miles).

The SineCycles chopper makes frequent appearances in local events, such as the SwissCustom Bike Show, which was held a few months ago. This one-off motorcycle unfortunatelyisn’t road legal yet, as this process is pretty expensive in Switzerland. Forcella is looking for possible investors who would like to assist incommercializing his motorcycle, so, if you like what you see and are interestedin funding such a project, follow the link below for Sine Cycles’ contactdetails.

Source:Sine Cycles

SineCycles, the electric chopper! Let's go for a ride!

View gallery - 23 images
10 comments
Bob
Nice attention to detail but the range seems very anemic. Even a good deep cycle trolling battery should beat 34 miles. With so much invested, he should have opted for a better battery and a little higher gearing. This does show a lot of promise for a simple and cheap electric cycle. Developing an improved Version 2.0 could hit all the right expectations.
Buellrider
Where are the rear shocks? Why does anyone build a bike without rear suspension because it will beat your spinal discs relentlessly. 34 miles/charge isn't worth the effort. Zero's head battery engineer claims a solid state battery that should become available will give them an unbelievable 1000 miles/charge. That will spell the end of ICE.
anobium
What's in the tank and why is it there?
JasonDavidSteel
I applaud anything in this direction. Spiros- your next article? The V9 Brutus......
Martin Hone
Looks good - nice, simple and clean. Actually more a Bobber than a Chopper.
michael_dowling
I am eternally grateful when I see a video of a electric bike/car/plane without f**king hard rock music accompanying it.
johanschaller
Beautiful execution of the design - really minimal and clean. Buellrider, look under the saddle - it's sprung. That's really all you need for short distance riding.
vblancer
This designer has no concept of what a "chopper" is. A chopper is loud and anti social except to other chopper owners and lovers. No real biker in the world would be caught dead near this ugly money pit. One thing REAL Chopper riders like doing is long rides with other LOUD nasty bikes. An absolutely silly idea from people that have no real idea of what they were doing. Electric and Chopper are two words that should never appear in the same sentence.
gizmowiz
I am eagerly awaiting Victory to crush the hearts of pure chopper fans with a really good electric eCruiser shaped like a real chopper with a low 24-26 inch seat height, high bars, high foot pegs, smooth, fast, quiet bike with 150+ mile range. It can be done. Just look at the LS218 which beat every gasoline bike for 2 years straight at Pikes Peak. They just need to put that powertrain into a real cruiser/chopper style bike. None of the junk like this guy did with his pitiful 34 mile range and 27 HP. No excuse for such lousy stats.
Keith Reeder
"Where are the rear shocks?" Seriously? With a name like "Buellrider" I'd have expected you to know enough about bikes to understand the word "hardtail"...