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joolsss |
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joolsss L Plate Warrior
Joined: 30 Nov 2018 Karma :
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Posted: 19:54 - 30 Nov 2018 Post subject: wobbles - me or the bike? |
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Hi
Just getting back into riding after about 25 years! Got myself a '95 CB500, sounds lovely, looks lovely, local mechanic says its better than most of the new bikes he comes across.
So why when I am riding does it have a wobble quite a lot? Is it me? is it the bike? I have 2 new tyres (worn in now) mechanic can find no probs. It just feels every now and the like it is about to go from under me, I am losing confidence daily. Are all bikes a bit wobbly sometimes? Im no speed demon, maybe over cautious, I just dont know |
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Pigeon |
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Pigeon World Chat Champion
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Riejufixing |
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Riejufixing World Chat Champion
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Teflon-Mike |
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Teflon-Mike tl;dr
Joined: 01 Jun 2010 Karma :
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Posted: 21:56 - 30 Nov 2018 Post subject: |
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That's an old bike (Still younger than any of mine, but still!) Its also a [popular learner/commuter. Lots were bought originally as either cheap high mile hacks, for commuting/despatch, or by schools. They oft suffered not-such wonderful early lives, and sold on as 'cheap' early-milers or cheap hacks, suffered even more. On the other hand, dumbelling the spread, as trhe bike many more mature learners did thier DAS on, they were the bike they were familiar with when left to thier own devices, and oft bought new, used little, and sold on for very little money... SO, they can either be sore abused hacks, or they can be almost unused pampered garage trophies, and what's in the middle is not a lot.
If it looks great, likely to be at the unuised DAS newbie end of the spectrum, and things like wheel bearings and suspension and other 'dereliction decay' are more likely than it simply being worn out and bodged to oblivion.
But as 'cheap' bike... that top book, is likely only worth perhaps £1000, when even a set of 'budget' tyres are the around £200..... few are going to stick a brand new set of rubber costing 20 of the bikes resale, to sell on....
So what's this 'new' rubber?
Cheap crappy tyres would be a strong bet; wrong tyre pressures another, wheel bearing, shocks (another £200 for 'decent' plungers), fork oil and headraces bearings all make the lost of mechanical maledies that are fairly likely....
Holding on too tight, though IS pretty common.
One thing with the old CB500, though, it is a bit of a tank, it weighs in at around 200Kg if memory serves, and aught be pretty planted and stable.... why the schools loved them, so much....
Begs suggestion, if it wobbles, there is likely to be something wrong with it, even if you are death-gripping it...
Start with the tyre pressures, and have a look at the side-markings; doint just check make and model, check the date code too.. may have been newly fitted, that dont mean the tyres are so young.... ____________________ My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?' |
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kgm |
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kgm World Chat Champion
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Sister Sledge |
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Sister Sledge World Chat Champion
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M.C |
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M.C Super Spammer
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colink98 |
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colink98 Could Be A Chat Bot
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Ian193 |
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Ian193 L Plate Warrior
Joined: 26 Aug 2018 Karma :
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recman |
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recman World Chat Champion
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 13:08 - 02 Dec 2018 Post subject: |
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Tyre pressures may be relevant. They changed their mind on standard tyre pressures a bit back. Must have been a reason for it.
33psi rear, 29psi front.
The sprocket carrier bearing can also collapse with very little sign that anything is amiss.
As above, I would get an experienced rider to have a go on it. Pay particular attention to where you are when this wobble appears, what speed you're doing, wether you are braking or accelerating. ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles. |
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talkToTheHat |
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talkToTheHat World Chat Champion
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Kawasaki Jimbo |
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Kawasaki Jimbo World Chat Champion
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trevor saxe-coburg-gotha |
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trevor saxe-coburg-gotha World Chat Champion
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recman |
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recman World Chat Champion
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Sister Sledge |
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Sister Sledge World Chat Champion
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Posted: 09:19 - 03 Dec 2018 Post subject: |
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I tried to be funny and looked for an image of a man made of jelly - don't look. Seems it's also a type of silicone penis extension ____________________ CCM 404 DS |
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joolsss |
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joolsss L Plate Warrior
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joolsss |
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joolsss L Plate Warrior
Joined: 30 Nov 2018 Karma :
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Posted: 12:41 - 03 Dec 2018 Post subject: |
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Also, I am in Coventry if anyone fancies having a go on it for me? |
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 14:19 - 03 Dec 2018 Post subject: |
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joolsss wrote: | Hi,
Thank you for all of your replies, I have been looking into some of these.
What I have noticed upon doing some of the checks suggested, is that there when I spun my rear wheel, it struggles to do one revolution.
Then I noticed that there is some noise like brake squealing when I am pushing my bike out of the garage. then today, whilst waiting at lights, I could smell a burnt rubber/possibly oil smell, not massively strong, and cannot smell it while riding.
Could these all be connected and could they cause instability? |
Possibly. If the brakes are binding, it would definately cause problems. Front brake in particular. That said, they will often flash-rust overnight and bind slightly when first taken out causing squealing and some resistance to turning that goes away after a few metres. Does it coast easily once it's rolling?
I usually check for lightly binding brakes by riding for a bit without using the brakes then stopping without using the brake I want to check and seeing if the disc is hot. Do this by flicking spit/water onto it, not by touching it, even with gloves on. If they are binding, the disc will be hot (and I mean HOT, will burn you through motorbike gloves).
@Jimbo, most bikes have reasonably standard tyres, CB500 have oddball tyre sizes and most of the available ones are bias belted. The roadriders we just fitted to Mrs stinkwheels one inspire confidence.
It occurrs to me that I've previously had Bridgestone BT45 tyres go a bit funny when the front gets worn (but not yet worn out) with a tendancy to track along linear markings on the road and feel a bit vague. ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles. |
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Kal |
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Kal World Chat Champion
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barrkel |
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barrkel World Chat Champion
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Kawasaki Jimbo |
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Kawasaki Jimbo World Chat Champion
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M.C |
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trevor saxe-coburg-gotha |
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trevor saxe-coburg-gotha World Chat Champion
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M.C |
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Old Thread Alert!
The last post was made 5 years, 144 days ago. Instead of replying here, would creating a new thread be more useful? |
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