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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Fork Brace? /cgi-bin/YaBB.pl?num=1202948800 Message started by Onederer on 02/13/08 at 16:26:39 |
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Title: Fork Brace? Post by Onederer on 02/13/08 at 16:26:39 Here is something everyone can try. Stand over your bike, hold the front brake, look over the handlebars and at the front tire and leading edge of the front fender. Compress the forks quicky while looking at the relationship between the front tire and the fender. After you try this, please reply with what you observe. Those with a brace should see something different than those without, as should someone with a dual disc bike. |
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Title: Re: Fork Brace? Post by sluggo on 02/14/08 at 01:38:34 not to sound to stoned but WHY.... or better yet, what am i looking at/for.... is this a question that you know the answere for and wonder who else does, or just drinkn' and thinkn'. it's late i've been sitting by the dumpster since my ride this afternoon and had to put on the glasses to read tonight. |
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Title: Re: Fork Brace? Post by smokin_blue on 02/14/08 at 03:01:58 I haven't tried it as mine is all disassembled but I believe what you will see is that if the brake is on the left, the fender will apear to go forward and to the left as the wheel twists back and to the right. It is a demonstration of the axle relationship to the bike twisting due to fork flex. |
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Title: Re: Fork Brace? Post by Onederer on 02/14/08 at 06:18:58 I am getting a brace, and I know they work, I'm just trying to point out the easyest thing to see. I did'nt mention what someone should see, because I did'nt want to influence the results.I figure some have never noticed and would like to know. Besides, I thought it'd be nice to have an easy, Savage related, tangible thread. Enjoy. |
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Title: Re: Fork Brace? Post by T Mack 1 on 02/14/08 at 09:26:29 So..... about 1/4 inch of tire to fender movement.... but ..... is this fork twist or bearing slop. Brace will solve twist but not slop. I've been debating the brace for awhile. Was going to get one, but when I took my wheel off to get a new front tire I realized that the axle holds the two fork tubes in place and it goes into fat chunks of aluminum so there should be almost not tube to tube twist. So, to test if it's twist or slop, I added a thrid reference point (see below). And, found that the fender & upper forks do not move, so there is very little twist, if any. (my eyes aren't perfect....) Was thinking that the duct tape might be moving to damper effect but still would see movements because of lenght of wire. Bearings? (Greg.... you said this before....) . Tighten the axle??.. steel & aluminum expand at different rates, so I guess it should be checked & re-torqued (to spec) every once and awhile. http://www.users.fast.net/~tommack/000_0005_sm.JPG |
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Title: Re: Fork Brace? Post by Onederer on 02/14/08 at 10:08:23 Wow Mack! Your pic definatley shows the twist. Thank You for the work. Now if anyone with a brace does the same, we'd have an excellent photo comparison. BTW, a brace should be beneficial to anyone who travles on roads with grooves, chuck holes, and thru cross winds. Thanks again Mack. |
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Title: Re: Fork Brace? Post by justin_o_guy2 on 02/14/08 at 10:41:05 The axle is mild steel & not really all that massive. It's not impossible to believe it could be flexing under the torsion load. The brace at the top of the lower fork tubes would protect it from that load. I couldnt quite "get my head around" the way the forks were flexing for a while, but with the wire & all, after some hard mental imaging, I finally got it. The wheel is pressed back, driiving the left fork back, the axle is the only element transferring the force to the right fork tube & that fork tube doesnt get all the poressure the left side gets, due to the axle being able to twist along its length, like a torsion bar. That, coupled with bearing clearances that are necessary plus the slop of wear. Maybe a brace doesnt completely eliminate it?It couldnt eliminat the slop part, as was previously noted, but the twist, Owell, I just went out & messed with mine. I cant see any twist & it has a brace. Maybe I just cant get enough load on it at 2 MPH. I can say one thing for sure. I felt a difference in the "surefootedness" of the bike as soon as that brace went on. It allowee me to enjoy the performance the other mods gave it. |
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Title: Re: Fork Brace? Post by T Mack 1 on 02/14/08 at 10:43:35 6D4C474647504750220 wrote:
Aaaaa...... no twist, just bearing/axle slop.... Picture is at slight angle maybe. After posting I went back and added a piece of duct tape to fender as reference for wire alignment to recheck. Still no fender to upper fork movement. It's all down at the bottom end...... Justin could be right, axle twist.... but I think the slop would be the bearings.... |
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Title: Re: Fork Brace? Post by buttgoat1 on 02/14/08 at 17:59:52 I know several folks have mentioned a fork brace with great enthusiasm, even over any other mods. Any recomended brands or suppliers? |
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Title: Re: Fork Brace? Post by drharveys on 02/14/08 at 22:24:47 425546535552554659340 wrote:
TKAT or Superbrace. TKAT does the job for less cost, Superbrace is pricier, but a work of art. This shows the Superbrace -- sorry it's not a close-up! http://i40.photobucket.com/albums/e204/drharveys/Suzuki/DSC02409.jpg |
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