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Post by skuttadawg on Sept 11, 2013 0:21:23 GMT -5
My ATM had a wimpy suspension and rode terrible . My Echarm has dual shocks and I adjusted the rear shocks to the firmest setting and it helped it alot . My Jonway Magnum has a handsome boy body like the VIPs but instead of 10s it has 130/60/13 tires and rides very good . The Magnum I am comfy and feel safe at any speed where the ATM and my Echarm would get sketchy at top speed .
If you have dual shocks NEVER ride it with one removed at it will tear it up and you may wreck and get hurt . Oil shocks do not ride as good as nitrogen ( gas ) shocks do . My scooter dealer had some shocks custom made based on his scooter , his weight and height ( he is short ) for 300 which is not that bad as I have seem some NCY shocks cost that much .
You could try adjusting the air pressure as removing a couple of PSI may soften the ride .
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Post by trailheadmike on Sept 11, 2013 16:22:19 GMT -5
My Vog suspension also sucks on anything but smooth roads. My front shocks bottom out on everything, and I'm essentially riding on fully compressed springs on the rear as soon as I sit down. In fact, my highway use is limited not be speed but by knowing my roads - I don't consider it a safe ride on many of the "older" highways here.
I was thinking of picking up some better quality used adjustable motorcycle rear shocks on ebay.
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Post by novaraptor on Sept 11, 2013 20:41:30 GMT -5
Just a throw out to Red and others.. Not new info but maybe good to repeat: your tires are part of your suspension. If you are pumping them to spec and getting a really hard ride you can drop a few psi and soften the ride. Also don't rely on gas station gauges. Buy a gauge. Go to a machine shop or a good tire shop. Have them air to spec then check with your gauge. Mark your gauge at the proper point so you have a known reference. Drop about 5psi and see if it cushions things a bit. Also a good tip for riding In the rain. It puts a larger patch on the road.
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Post by rockynv on Sept 12, 2013 12:04:12 GMT -5
Just a throw out to Red and others.. Not new info but maybe good to repeat: your tires are part of your suspension. If you are pumping them to spec and getting a really hard ride you can drop a few psi and soften the ride. Also don't rely on gas station gauges. Buy a gauge. Go to a machine shop or a good tire shop. Have them air to spec then check with your gauge. Mark your gauge at the proper point so you have a known reference. Drop about 5psi and see if it cushions things a bit. Also a good tip for riding In the rain. It puts a larger patch on the road. Just be mindful that when you do that on a front tire that you can introduce head shake to the bike as the tread can start to wear unevenly and get so bad that is can cause you to loose control of the bike. Usually you would inflate 2 psi higher then recommended while staying within the safe max inflation limit stamped on the tire to prevent the development of head shake.
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Post by novaraptor on Sept 12, 2013 13:00:21 GMT -5
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Post by jwalz1 on Sept 12, 2013 13:16:19 GMT -5
I am sure there is a great variation in suspension quality depending on design and components. But my scooter was described as having a "sporty" ride by a few reviews I read. Apparently that means when you go over a bit of broken pavement the rear swing arm goes WHAM!
I thought most scooters were supposed to be a little less forgiving in the rear due to the design, but my front fork feels a bit soft to me. Though it is the only one I have ever owned so I have little to compare to.
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Post by spandi on Sept 12, 2013 13:22:53 GMT -5
My Vog suspension also sucks on anything but smooth roads. My front shocks bottom out on everything, and I'm essentially riding on fully compressed springs on the rear as soon as I sit down. In fact, my highway use is limited not be speed but by knowing my roads - I don't consider it a safe ride on many of the "older" highways here. I was thinking of picking up some better quality used adjustable motorcycle rear shocks on ebay. After 10k, ever consider new shocks?
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Post by trailheadmike on Sept 12, 2013 14:15:14 GMT -5
spandi - my thought exactly.
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Post by rockynv on Sept 12, 2013 21:48:11 GMT -5
That article was just the beginning 11 years ago. Basically what happens is that if the front tire is slightly under-inflated for your weight and riding style the tread blocks squirm under heavy braking and the leading edges start to get worn away faster then the trailing edges leaving alternating gaps in the tires contact patch with the roadway. With alternately diagonally siped tread patterns or when a tire with matched diagonal siping is run favoring turns predominantly to one side, such as is common on a race course, this causes only one side of the tire to alternately have predominant contact with the road which grabs and pulls the handle bars to that side while at the same time that tread block starts to squirm excessivly and then springs back. At certain speeds depending on the road texture, tire diameter and tread pattern this gets more pronounced with the most common being while coasting to a stop below 35 mph or during panic braking at high speed. Upping the inflation just enough to reduce the tread squirm minimizes the wear and speeds at which the harmonic become apparent greatly reducing the intensity and frequency at which these events occur. That is how the lead Aprilia Factory Trained Mechanic at the local dealership expained it to me when I asked him about tank slap and such. Mine as the OEM front tire approched 6,000 miles was starting to slap while slowing to a stop using just engine braking and after I increased the tire pressure 1 psi at a time I found that increasing my front tire pressure from the recommended 29 psi to 32 psi eliminated 99% of the tank slap and now that I have put a new tire on it has eliminated it altogether as I now have 18,000 miles on the bike and 6,000 miles on the new front tire with no tendency toward slapping using the same model OEM tire. There are also situations where the bikes front geometry can be off from hitting something, pothole damage, wear or poor design however many times it is just a combination of moderate underflation and tire wear.
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Post by novaraptor on Sept 13, 2013 12:34:11 GMT -5
Good info, Rocky.. I've never had a case of tank slap, and the only recent case that I've heard of was on one of the large motorcycle forums. The guy mentioning it said that it had happened to him, but he does refer to his bike as old shakey and has in the past mentioned that if he takes his hands off the bars for even an instant it starts slewing. Other members of the group have been urging him to get that checked out. Be it scooter of motorcycle, your ride should be able to track in a straight line without your help. Not that you should ride hands free except for diagnostics..
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Post by prodigit on Sept 14, 2013 0:03:26 GMT -5
What if you'd remove one shock, and use a bolt that's long enough to go through both shock mounts on the seat? I'm sure it'll be ok if you're lightweight, but taking off one shock, if you're over 180LBS is not advised. I think I might actually try this one day on my EVO.
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Post by rockynv on Sept 14, 2013 14:08:55 GMT -5
What if you'd remove one shock, and use a bolt that's long enough to go through both shock mounts on the seat? I'm sure it'll be ok if you're lightweight, but taking off one shock, if you're over 180LBS is not advised. I think I might actually try this one day on my EVO. The frame still needs to be designed to handle a one sided load from the rear suspension. Yes it might be fine until you ride over a chuck hole or piece of road debris however you really don't want to find out then that it really doesn't work out well.
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