Fork brace? To do or not to do?

kowalski

kowalski

Active Member
I have a '72 cb750 with an 81 cb750 front end on it. I'll get a bit of head shake on windy days and in higher speed sweeping turns with any bumps The bike get unstable. I've been thinking of getting a fork brace but it's $100. I've heard lots of good things but it's always been a friend of a friend got one and loves it. Anyways just wondered what you guys think of them.
 
I've seen quite a few posts about the braces on here. Consensus is that it's an absolute must.
 
Well worth the money, IMO.


The lower fork legs, axle and wheel all travel as a unit over the bumps in the road.


When perfectly upright, the forces are more or less in line with the axis of the fork legs, compressing the forks linearly.


When you encounter bumps when cornering, the forces are no longer in line with the forks, and some of those forces are trying to twist the fork lowers, axle and wheel in multiple directions.


Hence the wobble/head shake in high speed turns. (NOT the time to feel unstable, right?)


A fork brace will help keep the fork lowers, axle and wheel in their correct alignment and greatly reduce the instability.

I would highly recommend putting one on.
 
Bozz said:
Well worth the money, IMO.


The lower fork legs, axle and wheel all travel as a unit over the bumps in the road.


When perfectly upright, the forces are more or less in line with the axis of the fork legs, compressing the forks linearly.


When you encounter bumps when cornering, the forces are no longer in line with the forks, and some of those forces are trying to twist the fork lowers, axle and wheel in multiple directions.


Hence the wobble/head shake in high speed turns. (NOT the time to feel unstable, right?)


A fork brace will help keep the fork lowers, axle and wheel in their correct alignment and greatly reduce the instability.

I would highly recommend putting one on.
Click to expand...

Well said.
 
Yes you should have one

BUT it sounds like you might have some other things wrong
Steering bearings and other things must be perfect too.
Have to start with the basics, putting and upgrade on a bike that is not 100% isnt an upgrade
 
Anyone make these for LESS than 100 bucks? Seems high IMO

i going to try and find one on eBay that fits a CB200 fork
 
I just finished building the bike earlier this year. The steering stem bearings are brand new all balls tappered bearings and races and theyre adjust properly too. I've had the bike up there speed wise, like close to red line 5th gear. I only get the slight shake on really windy days and the unstable feeling is only on one section of highway that's a little rough, with a couple sweeping turns. The problems really aren't that bad at all. Just wantwd some more input before I drop another $100 in the pit lol. Thank for the quick replies! Guess I'll get on ordered tonight.
 
For what it's worth, I'd be ecstatic if someone made a fork brace for a Royal Enfield for $100...the only one manufactured for my bike costs 175 Brit. pounds!!!
 
I've got a sohc cb750 with the allballs kit, and for me a fork brace was a night and day difference. Not to mention safer. 100 bucks isn't a big investment for sure footing in corners. I believe it was crazypj that told me once to straddle the front wheel and grab the handlebars. Then try twisting the front end while holding the wheel still. Its scary how far it can be twisted. Now try it with a good brace... world of difference.
 
When I was mocking my bike up without the front disc, I turned the bars and was shocked how much everything flexed without the support of even the brake.
 
if i could not find a fork brack... what i did on my tx500 is re enforced the stock fender brace cut away the fender and used that as my brace works great

179123_10150990010033073_818783994_n.jpg
 
I just ordered a Tarozzi fork brace from "fast from the past". So I should be good to go. till then I just won't push it to too hard around rougher sweeping turns till then ;D
 
JRK5892 said:
if i could not find a fork brack... what i did on my tx500 is re enforced the stock fender brace cut away the fender and used that as my brace works great

179123_10150990010033073_818783994_n.jpg
Click to expand...

Joe, hole in rotors should overlap each other on rotation so the pads wear even. Those look too small bud!
 
ya know i am not 100% sure Josh drilled them for me... here is a better shot of the face of the rotor

253354_10150909511323073_998888862_n.jpg
 
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