Metal piece under stock front fender - Page 2

ROADandTRACK · February 9th, 2012, 12:08 PM

And that design doesn't work

Nemesis · February 9th, 2012, 12:18 PM

smokinsingle · February 9th, 2012, 08:00 PM

Quote:

Originally Posted by ROADandTRACK

And that design doesn't work

Don't you ride pre-gens?

ROADandTRACK · February 9th, 2012, 09:54 PM

I build all types of road race bikes. I've built quite a few EX250's that have won in CMRA. Also did the suspension on the CBR250 that has been doing well out there. Basically same suspension as the EX. But the CBR has a better chassis.

I haven't ridden an old gen in a couple of years.

The last one I rode had new gen forks w/ new gen rear wheel. We built it because our old gen had a couple more hp, but when the motor finally let go it was parked.

Only pic I have on a new gen.

http://www.flickr.com/photos/9479484@N02/6849984643/

Kangxi · March 15th, 2012, 10:20 AM

Further to this conversation, I am wondering if it is required/necessary to attach a race bodywork fender (such as ArmourBodies) to the two mounting points along the top of the fender on the back side.

It is still unclear how much of the bracket needs to be retained even if one makes the decision to "get rid of it".

Any pix of various race set ups on the front fender and bodywork would be greatly appreciated!

samw · March 15th, 2012, 03:14 PM

My Sharkskinz front fender does not use those mounting points... see attached pic. Stock on left, Sharkskinz on right.

RSPILOT · March 17th, 2012, 10:05 AM

I run the brace. I guess I'm not going fast enough.

ROADandTRACK · March 19th, 2012, 04:34 PM

Quote:

Originally Posted by RSPILOT

I run the brace. I guess I'm not going fast enough.

The stock "brace" is a fender mount.

and maybe.

FishaRneked · March 19th, 2012, 04:50 PM

Quote:

Originally Posted by ROADandTRACK

The EX's handle better at speed w/o a fork brace. Believe it or not.

The little advantage was under braking, but you can deal w/ the twisting under braking. The binding up/chatter fast sweeper runing off track problem sucks.

Better w/o it if you are a front runner

Quote:

Originally Posted by smokinsingle

That "fender mount" is a fork brace. Designed to keep the front end from twisting up like a pretzel on the track. It adds a substantional amount of stiffness to the front of the bike, especially on the brakes. Leave it alone! I'm trying to wrap my head around a way to make a stiffer one that looks stock!

Just me or are these two exactly opposide statements

ROADandTRACK · March 20th, 2012, 08:14 AM

You are correct.

I think what is getting confusing is when I am talking about a fork brace I usually think of a real fork brace not that fender bracket. That bracket is huge and Kawi may have intended it as a kind of "fork brace" but it is not strong enough to affect much at race speed.

675Raisinator · March 20th, 2012, 09:50 AM

so should i ditch this thing or what?

alex.s · March 20th, 2012, 03:12 PM

you guys are confusing me. at what point are you getting chatter? fork braces on standard forks are supposed to help keep the fork lowers from twisting around the uppers and twisting the wheel, right? that doesn't seem to me like it effects braking much, considering the front stays rather calm in terms of sway movement under hard braking until it starts locking from too much brake... now if you are talking about twisting on turn in when trail braking, i could understand that being helped by a fork brace. the force of braking is on one side of the tire... could cause it to twist a little bit... or if you are heavy on the bars with your turn in... a fork brace would definitely help keep that from happening (excess twisting of the wheel compared to the bars). though, when this is all happening, the forks are compressed, so a fork brace is almost completely useless... what effect the front wheel twisting a little bit has on handling or performance... i almost want to say it has none outside of wear on the forks... if someone can explain otherwise please by all means... i mean, yes the bars will twist more than they "should" when its flexing like that. but that seems like the only difference? doesn't really effect handling...

Rexbo · March 20th, 2012, 03:15 PM

Quote:

Originally Posted by alex.s

you guys are confusing me. at what point are you getting chatter?

At all times, everywhere. Just the way 2fiddys roll

alex.s · March 20th, 2012, 03:24 PM

getting chatter while sitting on the stand. plz fix.

CZroe · March 21st, 2012, 01:16 AM

I sat on the bike after it had been sitting all winter and thought I was getting chatter at a stand-still until a couple of Akima's angry friends came out of the fairings and started harassing me.

samw · March 21st, 2012, 06:05 PM

Quote:

Originally Posted by 675Raisinator

so should i ditch this thing or what?

If you ditch it you need to find a way to mount the front fender, assuming you want a front fender. I believe some folks cut out the center part of the bracket?

ROADandTRACK · March 22nd, 2012, 05:17 PM

Nothing wrong w/ keeping the OEM bracket.

Nemesis · March 22nd, 2012, 06:48 PM

Quote:

Originally Posted by RSPILOT

I run the brace. I guess I'm not going fast enough.

Werd.

I can vouch for Wes.

Dsheumaker · October 20th, 2015, 02:30 PM

So to relive a super old post... Did anyone do this? With that results?

cbinker · October 20th, 2015, 07:47 PM

February 9th, 2012, 12:18 PM	#42
Nemesis CVMA #74 WSMC #750 Name: Nemesis Location: On the track Join Date: Oct 2009 Motorcycle(s): All of them Posts: A lot.	__________________________________________________

February 9th, 2012, 09:54 PM	#44
ROADandTRACK R&T Suspension Name: K Hertell Location: San Antonio, TEXAS Join Date: Jun 2009 Motorcycle(s): Too many to list Posts: 175	I build all types of road race bikes. I've built quite a few EX250's that have won in CMRA. Also did the suspension on the CBR250 that has been doing well out there. Basically same suspension as the EX. But the CBR has a better chassis. I haven't ridden an old gen in a couple of years. The last one I rode had new gen forks w/ new gen rear wheel. We built it because our old gen had a couple more hp, but when the motor finally let go it was parked. Only pic I have on a new gen. http://www.flickr.com/photos/9479484@N02/6849984643/ Last futzed with by ROADandTRACK; February 23rd, 2012 at 04:55 PM.

March 20th, 2012, 03:12 PM	#52
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	you guys are confusing me. at what point are you getting chatter? fork braces on standard forks are supposed to help keep the fork lowers from twisting around the uppers and twisting the wheel, right? that doesn't seem to me like it effects braking much, considering the front stays rather calm in terms of sway movement under hard braking until it starts locking from too much brake... now if you are talking about twisting on turn in when trail braking, i could understand that being helped by a fork brace. the force of braking is on one side of the tire... could cause it to twist a little bit... or if you are heavy on the bars with your turn in... a fork brace would definitely help keep that from happening (excess twisting of the wheel compared to the bars). though, when this is all happening, the forks are compressed, so a fork brace is almost completely useless... what effect the front wheel twisting a little bit has on handling or performance... i almost want to say it has none outside of wear on the forks... if someone can explain otherwise please by all means... i mean, yes the bars will twist more than they "should" when its flexing like that. but that seems like the only difference? doesn't really effect handling... __________________________________________________

March 20th, 2012, 03:24 PM	#54
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	getting chatter while sitting on the stand. plz fix. __________________________________________________

October 20th, 2015, 07:47 PM	#60
cbinker Track Clown Name: Chris Location: Kingman, AZ Join Date: May 2012 Motorcycle(s): '08 250R, 21 MV F3 800, Kawasaki 400 build Posts: A lot. MOTM - Sep '15	__________________________________________________ TEAM ALFALFA www.apexassassins.com

February 9th, 2012, 12:08 PM	#41
ROADandTRACK R&T Suspension Name: K Hertell Location: San Antonio, TEXAS Join Date: Jun 2009 Motorcycle(s): Too many to list Posts: 175	And that design doesn't work

March 17th, 2012, 10:05 AM	#47
RSPILOT ninjette.org member Name: Wes Location: SoCal Join Date: May 2009 Motorcycle(s): Too many. Some are in the house. Posts: 75	I run the brace. I guess I'm not going fast enough.

March 20th, 2012, 08:14 AM	#50
ROADandTRACK R&T Suspension Name: K Hertell Location: San Antonio, TEXAS Join Date: Jun 2009 Motorcycle(s): Too many to list Posts: 175	You are correct. I think what is getting confusing is when I am talking about a fork brace I usually think of a real fork brace not that fender bracket. That bracket is huge and Kawi may have intended it as a kind of "fork brace" but it is not strong enough to affect much at race speed.

March 20th, 2012, 09:50 AM	#51
675Raisinator ninjette.org member Name: Zander the Expander Location: Houston, Texas Join Date: Nov 2011 Motorcycle(s): 2010 Kawasaki 250 (Track scooter) 2012 Triumph Daytona 675 Posts: 153	so should i ditch this thing or what?

March 21st, 2012, 01:16 AM	#55
CZroe CPT Falcon Name: J.Emmett Turner Location: Newnan, GA Join Date: Apr 2009 Motorcycle(s): '08 CP Blue EX250J, '97 unpainted EX250F, 2nd '97 unpainted EX250F (no engine), '07 black EX250F Posts: A lot.	I sat on the bike after it had been sitting all winter and thought I was getting chatter at a stand-still until a couple of Akima's angry friends came out of the fairings and started harassing me.

March 22nd, 2012, 05:17 PM	#57
ROADandTRACK R&T Suspension Name: K Hertell Location: San Antonio, TEXAS Join Date: Jun 2009 Motorcycle(s): Too many to list Posts: 175	Nothing wrong w/ keeping the OEM bracket.

October 20th, 2015, 02:30 PM	#59
Dsheumaker ninjette.org guru Name: David Location: Knoxville, TN Join Date: Mar 2015 Motorcycle(s): 14 Ninja 300 (Track Only), 07 CRF150RB Posts: 281	So to relive a super old post... Did anyone do this? With that results?

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