front hub wheel shake

[auraslip]

I let all the air out of the fork and now it handles fine with no wheel shake.

WTF. I thought more travel = more trail = more stability.

[dogman]

Was that frame built to have a suspension fork? Or is it's geometery intended for a rigid fork that is much shorter?

When I had a similar problem, the cause was obvious.

Mongoose blackcomb commuter.JPG (100.67 KiB) Viewed 115 times

But not as obvious as you might think. I had slop in the braces that support the rear rack. When I tightened that up, I could resume riding this bike no hands. Still has horrible balance, but the shimmy went away.

So look for anything moving around. How tight is everything inside that battery box?

[auraslip]

80mm travel or 100mm travel and the suspension is 120mm travel so that right there is a problem.

The zip ties holding everything down are cranked hard enough to eat into the balsa wood, but that's actually something I haven't thought of. I'll check everything to make sure it's all tight.

[D-Man]

I have a 100mm aftermarket fork which seems too long. The frame was too small anyway so it ended up right with a longer reach stem. Never did solve the ebike headshake thing. Its a geometry thing that only the bike designers know. Got to hold the throttle anyway so why let go of the handlebars? Maybe to give someone the double finger?

[auraslip]

So you can ride with your arms crossed while sipping on your eciggerette like some space edged Buddha floating over the texas prairies. duh.

I used to do that while towing my trailer home on my old bike.