what to do about a flat spot in bike rim

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djryanrhymes Posted: Nov six, 2010 at 23:40 Quote So I spent $$$ on new wheels then soon later on smashed the rear and got a apartment spot. It was bad enough for me to observe while riding so something had to be washed. I didn't want to greenbacks out on a new wheel and then instead I thought hard on how to repair it. I ended upward spending ~$xx on some tools and manage to do so. Basically the idea is to insert a canteen jack in between the hub and the rim where the flat spot is. Then operate the jack to press the flat spot out. It worked for me, showtime try. I wouldn't consider it "good as new" but I'thousand definitely satisfied with the effect. Before going off and trying this, please consider the following: -don't expect this to fix whatsoever severity of flat spot. Mine was modest so it worked. Yours might exist major then.... mayhap it'll piece of work, I don't know. -contents nether pressure level! Ya, and so protect yourself when doing this. -your bike is different from mine and so be sure that you make adjustments to protect the parts on you bicycle. Ok, here we get: one. You will need the smallest canteen jack you can discover. I got a ii-ton jack from Princess Auto for $16. Also from there I grabbed a $4 rubber boat bumper. You lot as well might need some wooden spacers and piece of safe to protect your rim from scratches. 2. I don't have a truing stand so I clamped on a piece of metal to utilise as a reference when finding the flat spot. A zap strap works as well. 3. Marking where the flat spot starts and finishes every bit well equally the center (most flatted spot) 4. With a ruler, ON A Expert Office OF THE RIM, measure out and note the distance between the hub and the edge of the rim. Compare it to the flatted side of the rim. This will tell y'all how much you need to press out. I required ~5mm. 5. Remove the spokes within the flatted surface area. 6. Install the bottle jack under the center point of the apartment spot. I placed the boat bumper over my hub, then the spacer, then the jack and slice of condom. 7. Double check everything is lined upwards and requite information technology a couple pumps. Keep an eye on your spokes, cog, hub, etc. ensuring naught is getting bent. Be careful non to over do information technology. You might wreck something like bosom a spoke or fissure your rim. After some tension has been applied remove the jack and measure your progress against the measurement you made of the expert side. Reinstall the jack and repeat equally necessary. viii. Reassemble your cycle and have a pro truthful it. The stop. adove Posted: Nov 7, 2010 at 0:xvi Quote That'south a pretty swell McGuyver manner of fixing what would be a expressionless rim. knobzy Posted: Nov eight, 2010 at seven:58 Quote Its a very smart Thought, make certain to include "Exercise AT YOUR Ain RISK" only downside to this is that yous already damaged your rim causing the flat spot, pushing information technology back to normal volition only do more damage as your are flexing and bending the metal back. Does make it weaker. This comes from personal experience. I did a fix similar (minus bottle jack) few years agone and blew up the rim later. Its similar taking a pcs of metal and angle information technology, now curve information technology dorsum to normal. It will be weaker. And then for all who does this, do at your own risk. You are taking your bike/life into your own hands. djryanrhymes Posted: Nov 8, 2010 at 19:thirty Quote knobzy wrote: Its a very smart Idea, brand sure to include "Do AT YOUR OWN Take chances" only downside to this is that you already damaged your rim causing the flat spot, pushing it back to normal will only do more damage every bit your are flexing and bending the metallic back. Does make information technology weaker. This comes from personal feel. I did a set up similar (minus bottle jack) few years ago and blew up the rim later. Its like taking a pcs of metal and bending it, now bend information technology dorsum to normal. It will be weaker. So for all who does this, do at your ain risk. Yous are taking your cycle/life into your own hands. Yes, all true. Simply in my case it was a small flat spot so there's reason to sweat information technology. Posted: December 26, 2010 at 7:15 Quote i'd just pay $30 for a complete true at the bike store. collapse Posted: April 19, 2011 at 18:xi Quote Interesting method, and looks like it could piece of work. I was wonder near another method. Taking a two blocks of wood, 1 shapped for the within of the hoop and ane shaped for the tube side of the hoop, and some kind of hydralic press. The reason I enquire most this method vs. the posted above, my rim isn't laced ATM. I'll take to think near the different methods possible gordanfreman Posted: Apr 20, 2011 at 3:39 Quote NorthEasternDH wrote: i'd just pay $30 for a complete true at the bike shop. if the rim is truly flat-spotted, they won't be able to do anything better. collapse Posted: Apr 20, 2011 at 4:xl Quote Buddy, where I'k at, I'd be lucky to detect a cycle store lmao. I'll accept t run into what's available

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