The next weird electric bike to find it's way to me.. Giant

[Voltron]

]It's funny how once people hear you like weird electric bikes more of them find you.

 

[Voltron]

It has an overspeed crank i.e. the chainring is rotating faster than the crank is, not just a freewheeling crank.
Edit....Just counted, it's about 2.8 ish times the crank speed, with a 20 tooth driver

 

[Voltron]

Dang...that spline is tiny. That's going to make retro-ing a brushless motor harder. I'm guessing the wire coming out is a torque sensor.

 

[tahustvedt]

Does it have six "teeth"? Maybe you can make an adapter from a torx bit.

 

[Skalabala]

Time to open up the gearbox

 

[Dauntless]

Time to open up the gearbox

If only so we can see the pictures, right?

 

[Hillhater]

Wow, very unique bike frame....anyone come across it before ?
Was it a prototype or were there numbers of these made ?
But, it is so similar to the Aprilia Enjoy, it could almost be a copy !
Brush motor, spline drive to a custom crank assy, torque sensor, and even the "over gearing" of the chainring !

 

[wineboyrider]

Same drive as the Ford Think! that Dogman gifted me....lol

 

[Voltron]

I was staring at a logo on the frame before researching it...and sure enough, the frame is made by Giant,and sold as the LaFree brand. Seems like it would be fun as a low power city bike.