Thread: Fork Brace
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Old December 2nd, 2017, 05:39 PM   #12
Triple Jim
Guy Who Enjoys Riding
 
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Name: Jim
Location: North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
To find out if you might need a fork brace, stand in front of a motorcycle and clamp the front tire between your knees. Then wiggle the handlebar back and forth with a fair amount of force, watching the fork tubes. If you can wiggle the bar while keeping the tire still, you're twisting the fork tube as a pair. A good brace will stiffen this up a lot. A well made fender bracket will also.

Since it started out as a dirt bike, my little DT100 didn't have a fender mounded on the sliders, and I could twist the tubes a lot. I made a very effective brace that increases the rigidity of the assembly so that it moves maybe 1/4 of the amount it did without the brace. My H2, with its steel fender and fender bracket, is relatively stiff without an additional brace.

Here's the simple one I made for the DT100, that mounts to the previously empty fender bosses: (recognize the caliper?)
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