Bike Forums

Bike Forums (https://www.bikeforums.net/forum.php)
-   Bicycle Mechanics (https://www.bikeforums.net/bicycle-mechanics/)
-   -   Traumatic Trail Adjustment (https://www.bikeforums.net/bicycle-mechanics/1089209-traumatic-trail-adjustment.html)

benshares 11-22-16 08:23 PM

Traumatic Trail Adjustment
 
Funny story: Had a moderately bad crash on my steel single speed commuter. Trued my wheel, buffed out the scratches, healed up, and got back on the bike. Was noticing a weird unsteadiness, a shimmying feeling at mid-speeds, and noticed my feet kept contacting the wheel when I was turning. Rode it a while more and then took a look at my wife's bike from the same maker... and realized that I had hit the fork hard enough (and straight on) to reduce the rake by probably 1.5 inches! Instant conversion into twitchy crit bike at low cost!

Before:
http://i.imgur.com/uPky2Rj.jpg

After:
http://i.imgur.com/1jjVBFy.jpg

HillRider 11-22-16 08:37 PM

That must have been some crash. It was hard enough to reverse all the decals! :)

benshares 11-22-16 08:46 PM


Originally Posted by HillRider (Post 19208623)
That must have been some crash. It was hard enough to reverse all the decals! :)

And it scared the chain so badly that it turned white!

Dan Burkhart 11-22-16 08:48 PM


Originally Posted by HillRider (Post 19208623)
That must have been some crash. It was hard enough to reverse all the decals! :)

And shift the drive train to the left side of the bike. I'm assuming that was the "after" photo.

benshares 11-22-16 09:08 PM

Gentlemen: I am here to reveal to you that my bicycle's geometry is the same from the left or the right. Apologies for flipping to photo to assist your comparisons.

xenologer 11-22-16 09:22 PM

You can easily bend it back.
Just turn the fork backwards, then crash again in the same place.


Really though, easy to fix, lay a big ladder on the floor, hook the fork legs between the rungs, stand on the end of the ladder and push using the frame as leverage.
When the fork tubing reaches its original shape, resistance will increase, so stop then.

dsaul 11-23-16 06:53 AM

I see a bent frame. The top and down tubes look bent just behind the head tube, as is typical in a front end collision.

Dan Burkhart 11-23-16 07:03 AM


Originally Posted by benshares (Post 19208656)
Gentlemen: I am here to reveal to you that my bicycle's geometry is the same from the left or the right. Apologies for flipping to photo to assist your comparisons.

No need to apologize for giving us something to have a bit of fun with. :)

leob1 11-23-16 08:56 AM


Originally Posted by dsaul (Post 19209032)
I see a bent frame. The top and down tubes look bent just behind the head tube, as is typical in a front end collision.

Yup, that's what thought too.

Think long and hard about making the frame wall art.

TimothyH 11-23-16 09:25 AM


Originally Posted by dsaul (Post 19209032)
I see a bent frame.

Originally Posted by leob1 (Post 19209274)
Yup, that's what thought too.

Think long and hard about making the frame wall art.



I thought so too. Definitely bent.

That's probably a $450 bike. Looks like it has some upgrades though. I'd strip the parts and look for a used Soma Rush frame or something like that.

I rode with a guy who had a Tribe Knox. Looked nice in terms of style and workmanship. He also crashed his on a ride but didn't bend it.

Glad the OP wasn't hurt. That's the main thing.


-Tim-

sch 11-23-16 09:30 AM

Best you take the fork out for an exam of the fork/steerer junction. If this is bent, a replacement might in part
solve your problem. OTOH if the frame buckling is the explanation then the bike is toasty.

AlexCyclistRoch 11-23-16 04:37 PM

The frame is bent, and the steerer has been bent and is no longer safe to ride. Start stripping components, and look for a new frame and fork....


All times are GMT -6. The time now is 01:35 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.