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Message started by zevenenergie on 08/31/19 at 09:48:02

Title: Fork twisted.
Post by zevenenergie on 08/31/19 at 09:48:02

Dear members, I have a problem with my front fork.
Do you please want to give you your opinion on this, because I can't figure it out.

My steering wheel is crooked.
If I have my steering wheel straight, my front wheel is at an angle of 5 degrees. I have loosened all the bolts from the front fork and tried to adjust the front wheel, but it just skewed again.

The legs are perfectly straight, but I can clearly see that they are not parallel, when I look at them from the side.

The fork is twisted. But which parts are bent?

(sorry for my poor engels I am from Holland)

Title: Re: Fork twisted.
Post by justin_o_guy2 on 08/31/19 at 11:05:03

Loosen the clamping bolts in the lower triple tree.
Stand with a leg on either side of the front wheel and give the handlebars a twist.
Mess with it till you are happy
Tighten up the clamping bolts.

Title: Re: Fork twisted.
Post by zevenenergie on 08/31/19 at 11:55:49

That was my first solution. But there is a lot of tention on the fork and the Clamps are hardly strong enough to holt the pressure. So I want to solve the problem that it is causing it. But I can't find the cause.

Title: Re: Fork twisted.
Post by justin_o_guy2 on 08/31/19 at 12:06:22

Loosen the clamp bolt on the axle and just barely loosen the axle.
Make sure you loosen the triple tree clamping bolts enough.

How did this problem happen?

Title: Re: Fork twisted.
Post by zevenenergie on 08/31/19 at 12:31:06

The wheel was already crooked when I bought the bike. But the left footrest was broken, the clutch lever was slightly bent. so I think they fell with it.

But there is also this damage and repair.
http://https://i.imgur.com/fqn7I2Bl.jpg

I also loosened the axle, and when I turn it, there is a slight movement in the fork.

Title: Re: Fork twisted.
Post by DragBikeMike on 08/31/19 at 13:38:52

There is a good chance your lower triple tree is bent, possibly the upper too. If the fork tubes are straight, and the axle is straight, the tree is probably bent.

You can check the fork tubes for straightness by rotating them 180 degrees in the clamps. If the tube is bent, the lower leg is gonna change position as the tube is rotated in the clamps. It's a quick & dirty check.

Title: Re: Fork twisted.
Post by zevenenergie on 08/31/19 at 13:53:38

Ok Tanks Mike,

The left leg is bent.
when I turn it, the wheel returns to its upright position, but I think it is better to look for another fork.

Title: Re: Fork twisted.
Post by zevenenergie on 09/02/19 at 03:12:31

I bought another fork today, $ 75.-

http://https://i.imgur.com/PH8qhHul.jpg

Justin and Mike, tanks for your help to make my bike great again. I appreciate it :)

Title: Re: Fork twisted.:
Post by justin_o_guy2 on 09/02/19 at 07:56:43

I tried
An actual smart guy showed up and solved it.
I learned another thing.
Good luck and stay safe.

Title: Re: Fork twisted.
Post by Armen on 09/02/19 at 11:44:22

Get a piece of 1/4" thick glass cut that fits below the lower tree and above the fender.
Lay the glass across the fork tubes and see if it sits flat. Flip the glass over and rotate and see if it changes, to eliminate the possibility of the glass not being flat. Then start tightening things-lower tree, upper tree, fender.
Check after each part is tightened.