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Post by rdhood on Jan 26, 2015 10:48:31 GMT -5
Okay, finally got to ride my scoot more extensively this weekend. Here is the problem: there is about an inch of clearance between the wheel and the plastic wheel well. See pic:  When I hit the brakes, the front fork compresses and the wheel scrubs the wheel well making a nasty whining sound and wearing on the tire and bike. Remember that one of the things I did was to tighten the steerer bearings. Maybe something is bent? How much clearance is there on a typical scoot? |
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Post by geh3333 on Jan 26, 2015 20:25:30 GMT -5
Okay, finally got to ride my scoot more extensively this weekend. Here is the problem: there is about an inch of clearance between the wheel and the plastic wheel well. See pic: When I hit the brakes, the front fork compresses and the wheel scrubs the wheel well making a nasty whining sound and wearing on the tire and bike. Remember that one of the things I did was to tighten the steerer bearings. Maybe something is bent? How much clearance is there on a typical scoot? I'll take a pic of mine and post it for u. I recently put bigger tires on my scoot and I believe my front tire it also pretty darn close. |
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Post by geh3333 on Jan 26, 2015 20:35:49 GMT -5
Here are a couple pics. The bottom pic u can see where it looks as if its rubbing , however it is only the dirt that has been thrown from the tire sticking to the plastic . I should probably clean it more often , lol. If u are rubbing u have a problem in you tree. It seems as if mine may be just as close if not closer and is not rubbing at all.[URLURL=http://s1319.photobucket.com/user/geh3333/media/Mobile%20Uploads/20150126_202742_zps647240ab.jpg.html]  [/URL] |
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Post by shalomdawg on Jan 26, 2015 20:36:09 GMT -5
howdy, all i can say is that should not occur. if that is the front tire rubbing when you apply the front brake , then something is bent moving the front tire rearward or the guard has moved forward. alternatively i suppose somehow the front suspension has compressed or compresses more than it should. have you checked the length of the front shocks with and without load? maybe there is no oil in the shocks and they have shortened with load or have no dampening so they get shorter than designed to do when the brake is applied.
like woody woodpecker says "that's all folks"
lotsa miles and smiles to ya
ken
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Post by geh3333 on Jan 26, 2015 20:36:46 GMT -5
Actually they seem about the same .
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Post by geh3333 on Jan 26, 2015 20:39:48 GMT -5
Here is another pic.  . You can see the dirt I'm talking about running all under the fairing. And u can see how close it really is from the tire to the fairing. |
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Post by psychedelicode on Jan 26, 2015 20:42:38 GMT -5
I had this same issue on the scoot thats my avatar. The front ends of these were designed like poo. Hard braking will bend the entire head tube easily (because you are pushing on the bars at the same time as the front wheel is braking and trying to tuck under the scoot) as well as potholes. They are very weak and only have that one point of support near the floor.
It takes some modding and a welder to fix the issue. But your front end will be alot more solid afterwards. Its not quite so step through anymore either.
If you have upgraded to a larger front tire you should put stock size back on. Changing front tire sizes is throwing your speedo off anyway.
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Post by rdhood on Jan 26, 2015 20:45:23 GMT -5
yeah. It is starting to look more like a problem with fork compression. Geh's clearance at rest is about the same as mine. I need to get someone on the bike to compress the fork so that I can get down there and see what is going on.
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Post by geh3333 on Jan 26, 2015 20:47:43 GMT -5
I had this same issue on the scoot thats my avatar. The front ends of these were designed like poo. Hard braking will bend the entire head tube easily (because you are pushing on the bars at the same time as the front wheel is braking and trying to tuck under the scoot) as well as potholes. They are very weak and only have that one point of support near the floor. It takes some modding and a welder to fix the issue. But your front end will be alot more solid afterwards. Its not quite so step through anymore either. If you have upgraded to a larger front tire you should put stock size back on. Changing front tire sizes is throwing your speedo off anyway. Actually my speedo was always spot on , at least that's what GPS and road side radar signs told me , lol . after I changed to the bigger tires " from 130/60 to 130/70 " the speedo somehow is still spot on ? I even posted a video of my speedo accuracy compared to radar. I guess my old stock tires after being ridden down to threads where probably slightly off , but the new 130/70, is spot on right now . |
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Post by geh3333 on Jan 26, 2015 20:49:32 GMT -5
yeah. It is starting to look more like a problem with fork compression. Geh's clearance at rest is about the same as mine. I need to get someone on the bike to compress the fork so that I can get down there and see what is going on. I bet something in the tree assembly is loose or bent. |
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Post by psychedelicode on Jan 26, 2015 21:01:02 GMT -5
A difference in aspect ratio means that the tire is larger in diameter provided the width is the same. In your case. you went from a worn 130/60 to a new 130/70 That means your new tire has taller sidewalls and therefore a larger diameter and circumference than the old one, since they have the same width. Now this should throw your speedo off. We all know that chinese speedos are not very accurate.
Do you still have your old tire? If not you can probably get it back from the shop you had it changed at (they have to pay for disposal). Then measure the circumference difference between it and the new. The new one is going to have a larger circumference and diameter than the old.
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Post by psychedelicode on Jan 26, 2015 21:03:49 GMT -5
Or somethings bent of course. The fork should be able to fully compress and not make contact with anything. It can lock up the front tire and throw you overboard.
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Post by geh3333 on Jan 26, 2015 21:11:56 GMT -5
A difference in aspect ratio means that the tire is larger in diameter provided the width is the same. In your case. you went from a worn 130/60 to a new 130/70 That means your new tire has taller sidewalls and therefore a larger diameter and circumference than the old one, since they have the same width. Now this should throw your speedo off. We all know that chinese speedos are not very accurate. Do you still have your old tire? If not you can probably get it back from the shop you had it changed at (they have to pay for disposal). Then measure the circumference difference between it and the new. The new one is going to have a larger circumference and diameter than the old. I agree with what u r saying . the 130/60 new compared to the 130/70 new should be between a 1,and 2 mph difference on the speedo , however I still show a spot on speedo with radar ? Doesn't make sense but then again the radar sign could be a mph or 2,off at times . |
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Post by psychedelicode on Jan 26, 2015 21:18:18 GMT -5
Thats a tough question. I have no idea how accurate police radar is or how often they calibrate their signs. There have been alot of discrepancies for them in history. I like GPS/Cellphone taped above the dash when checking speedo accuracy.
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Post by geh3333 on Jan 26, 2015 22:34:20 GMT -5
I've posted this before , but the first time I checked my speedo yrs ago I drove next to a car with GPS , as they hit 50 I was right at 50 and the top speed was 67 on the gps" is there room for error , yes " from then on I went by radar signs, most times the speedo matched the signs " and im sure the speedo was off as the tires wore down to threads. When it comes down to it my speedo seems more accurate then ever " is it that the radar signs have been calibrated ? " and even with the bigger tires I'm reaching 67+ on straight runs on the speedo. I did have to drop in roller weights with the new koso " same time I replaced the tires" . there are a lot of different variables when it comes to tunning the CVT with bigger tires and a different variator . when it comes to the speedo accuracy from the results I've had its more then likely I'm at a point where the speedo is at this point 100% correct , even if the earlier results were 1 or 2 mph off the new tires brought that back to dead accurate.
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