1000w Kranked Currie E-bike Tire - Kills the Reflector!!

So fast you can hear the wind of the tire! 7th gear was when the tire reflector flew out and smashed into pieces on the floor at the end of this video. Come back for future daytime speed tests and check out the latest ratio we've made for this and The Power Hawg Conversion Project!
For all users of any unsealed Freewheel on any bicycle, make sure it's always greased, and if using in dirty conditions replace grease and solvent clean inside the freewheel while rotating.

The truth about youtube: http://encyclopediadramatica.ch/Shaycarl

Category:

Autos & Vehicles

Tags:

• Seriously
• Fastest
• Currie
• E-bike
• tire
• 120
• mph
• kills
• the
• reflector

[thisisaguy]

Thanks for the videos. I'm building an electric bike soon using a 1500w BMC motor. The thing I'm having trouble with is finding a quality freewheel crank setup. I don't know anything about building one and definitely don't want to spend the over 400 dollars Boosty is selling theirs for.

[luc59457]

@thisisaguy What sprocket/chain pitch are you going to be using.. The only site I know of selling a freewheel arm and system is cycloneusa. and from them you'll be looking at around 100$ plus tax. If you do it yourself you could save 25-50$ but you'll need a welder

[thisisaguy]

@luc59457 Thanks for the info. No welding. Anything I do is going to need to be bolt on or bolt together. My main concern is that it will handle the abuse the motor will put on it.

As far as sprocket and chain and those details, I'm not sure yet. I'm still just planning it all out. I have speed and acceleration goals in mind. I'm not trying to break records but I plan to use the bike as a commuter; I need it to be more than capable in 35-45 mile per hour traffic (illegal, yes, but nm that.)

[luc59457]

@thisisaguy If you go with cyclone, yes it will be strong enough for a 1500w.Even my design is strong enough,but you cannot possibly bolt the axle cup to the arm. CycloneUSA have it already machined. What is the sprocket pitch you are going to use for that?The 4 bolt pattern freewheel has the same hole pattern as the #25 sprockets.If you use a different pitch sprocket, you may need the 5 hole freewheel or drill holes carefully. Different sprockets must be the same ID as the #25 to fit freehweel

[thisisaguy]

@luc59457 Actually, while searching around today, I found a site called cyclone-e-bike.tw. They sell a two chain, crank freewheel set for similar setups as yours. They sell a dual 1200w kit which uses the crank set so I would think the freewheel is plenty strong for my purposes. There is a video on YouTube of a guy riding this setup much faster than I would ever want to go. It might be a gamble to order from Taiwan but for under 100 bucks it might be worth it. It's exactly what I'm looking for.

[luc59457]

@thisisaguy Please come back and let us know your review if you decide to buy from them. Thanks.

[ghost500e]

@epoxycock Yes! that is true but not relevant in electric motors at all.... Cause they have such enormous torque compared to gaspowered engines. A 1000W electric motor is equal to a 5-6HP petrol diesel methanol or what have you, Torquewise that is, and that is what gives the punch 4 anyone who knows just a little bit of engines... HP i just the end product on top-RPM´s anyway. Thats why a 200hp dieselmotor is way better than 200hp gasolinemotor. cause the amount of torque.

[alfa70000]

1:12 WTF!!!

[luc59457]

@TheSelfGoverned rofl

[TheSelfGoverned]

@T3hRipPeRr Nah...only your legs. =)