Standing start 0-75km/h on a 4.25% grade

[Lowell]

Crystalyte X503 hub motor. This is the first time I caught a red light on this hill, usually I'm already going 75km/h+ at the bottom.

About 300lbs all up weight with my backpack (aka parachute). I was trying to tuck in beside the camera, but that puts my head and backpack in a lot of direct airflow so the bike felt slow to pick up speed past 65km/h. My best speed up this hill is 79km/h 8)


Google Video
http://video.google.ca/videoplay?docid=3701483392051668906

YouTube
http://youtube.com/watch?v=4LWKfNujiOU

 

[Tony]

Almost sounds like there is a motorcycle there- I was waiting for it to pass you- but it never does!

 

[Lowell]

That's my lady on her motorcycle. She just passed her M license, so ebike pace is perfect for her.

http://endless-sphere.com/forums/viewtopic.php?p=11061&highlight=heres+shot#11061

In the River Rd video we trade lead a few times.

 

[knightmb]

Crystalyte X503 hub motor. This is the first time I caught a red light on this hill, usually I'm already going 75km/h+ at the bottom.

About 300lbs all up weight with my backpack (aka parachute). I was trying to tuck in beside the camera, but that puts my head and backpack in a lot of direct airflow so the bike felt slow to pick up speed past 65km/h. My best speed up this hill is 79km/h 8)


Google Video
http://video.google.ca/videoplay?docid=3701483392051668906

YouTube
http://youtube.com/watch?v=4LWKfNujiOU

Very impressive. I know the camera is mounted "front forward" so it's difficult to tell what is and isn't a hill, but the trees and scenery on the side to show how steep it is. Always cool to hear the quite hum of the motor as it takes off ahead of the pack

 

[xyster]

Your motor has the same shudder in the same part of the powerband as mine. But it sounds as if you pass through that shudder much faster...

 

[Lowell]

Your motor has the same shudder in the same part of the powerband as mine. But it sounds as if you pass through that shudder much faster...

Yes, mine hums in about a 4-5km/h range roughly centered at 38km/h. Other than that, the only sound is the freewheel clicking and of course wind noise.