Front fork bent

[harryS]

Nothing can happen until you measure the dimensions of the fork, First you have to determine if it is threaded or threadless, Not just a matter of looking at pictures. You have to get the dimensions,


The diameter is the next parameter. It's either 1" or 1-1/8" for both types. For a threaded fork, if you look at the stem that goes to the hand;bars. that will be either 1" or 7/8" for the respective sizes.
.
Then you have to measure the length of your frame to determine if the candidate fork is long enough. And if it is a threaded fork, if the thread are long enough to extend into your frame,
.
It looks like you have a threaded fork, and those can be hard to source. They nay often be long enough,. but not have enough threads, Also,with rim brakes it may not be possible to use a 700cc fork if you have a 26" wheel. The calipers may be too short or too long,
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Suspension forks are almost always alloy and even weaker than steel forls when it comes to a motor.Your best bet is to have buddy that's a good welder. Find a steel fork and weld the top tube of the old one to it, Weld on taps for disk brakes. Beef up the dropouts by welding the torque arms to them.

 

[Bigjayvapes]

Haven't got the darn fork off yet had to work today, they again tomorrow

 

[PedalUma]

1200w Ebikeling motor, I'm over 300 pounds

Newton and Darwin will not let it happen.

 

[Bigjayvapes]

Could it just be, my torque nuts not able to keep the wheel from turning

 

[PCeBiker]

Could it just be, my torque nuts not able to keep the wheel from turning

No.
The torque arms and nuts are to keep the axle from spinning.
If the axle was spinning, then the cable coming out of the axle would be spinning around.

You could have your bearings too tight, but if your wheel spins freely (well, almost freely, there is some motor drag) then your bearings aren't over tightened.

Your forks are most likely bent from the power and weight of your motor/wheel.

 

[PedalUma]

Both say it is ill advised.

 

[PCeBiker]

Newton and Darwin will not let it happen.

Murphy too.



Bigjayvapes can't go wrong with Chromoly forks, could he?

 

[PedalUma]

He would need a bikepacking fork with custom enhancements. Even then, I would not want to be associated with it. There is going to be torque steer and is will crash or disintegrate at speed. It would also need a PickUp tire and enhanced rim. Still it is not advisable. These guys wouldn't touch it.

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[PCeBiker]

He would need a bikepacking fork with custom enhancements. Even then, I would not want to be associated with it. There is going to be torque steer and is will crash or disintegrate at speed. It would also need a PickUp tire and enhanced rim. Still it is not advisable. These guys wouldn't touch it.

Yeah, his best bet is to start over.
Even if he replaced his forks, the entire rest of his bike isn't going to be sturdy enough to support him and his high power motor.

Maybe you can send him some suggestions for a reasonably priced heavy-duty trike he can put his motor on.

 

[PedalUma]

heavy-duty trike

Another problem is that even with a mid-drive, moderately priced trikes only drive one wheel. That is like a tank only driving one tread. It will steer differently left and right. It would need custom cargo wheels and tires. I don't have an answer given budget constraints. Maybe just go with a 250W front geared hub and a cargo fork with forward angled dropouts. Vertical dropouts will not work.