GT250R tries to kill me

**erik** · 17th September 2008, 08:07

have you got a photo of the lever? It'd be good to see what was actually wrong with it that caused it to move from the outermost position to innermost. Or to at least see what type of adjusting system it's got so we can be wary of other levers with the same system.

Like xerxesdaphat, I don't understand how the rear master cylinder could suddenly seize.

**jonbuoy** · 17th September 2008, 08:36

Maybe the seal expanded in the bore? What brake fluid was in it? Front brake problem is unforgivable on manufacturers part. No doubt the same thing would have happened at a 50KPH emergency stop. Appalling for a modern bike.

**Tank** · 17th September 2008, 09:03

Just an idea - with a bike maintenance etc is a really good idea.

You should always look over and check brakes etc on a weekly basis (or daily for a hyoshit).

It only takes a minute - and if you are the kind of guy who 'cruises' at 160:TUI its doubly important.

**CookMySock** · 17th September 2008, 09:07

Basically what you have discovered, is the brakes aren't good enough for your riding style on lever setting one, so you use lever setting six and then ride it like a race bike, which its not.

Now the problem is, you get a hell of a fright doing some stupid antics on it at lightspeed, grab the lever reeeeely harrrd and bend and damage the mechanism, and it shits on you. So welcome to the real world sonny!

It sounds to me like you need a trackbike - something you can go bash the piss out of on the track and fuck it up real bad. Either that, or fucking slow down on the public roads while you are on your fucken learners, before the bike gives YOU the learn.

Hyos arent race bikes, they are learner sport/tourers.

Steve

**Mr. Rock** · 17th September 2008, 09:29

Originally Posted by Donut

the bike has been well maintained and is cleaned and checked once a week, this is not the first time my hyo-shit's brakes have failed me.... the first was when my front calliper fell off..

how did this fall off?? like the screws fell out? and it fell off? sounds like the person who put your bike together did a rugged job.. but if you mean it fell off as in the bolts holding it there are sweet and it ripped the mount off that would be a different issue.

seems alot of these issues could be caused by poor assembly.. rear brakes possibly using wrong fluids? bolts not tightend.. im just guessing.

**lostinflyz** · 17th September 2008, 10:41

brakes dont fall off. If they did i would park my bike at the side of the road leave the keys in it and for a scummy bike theif to come along and have a weee ride. There is no way id ride a bike that had its front brakes come off. You would feel the calipers coming loose if they werent tight and i cant see the bolts shearing but maybe. Surely even hyoshit know what a factor of safety is.

Either way Donut your comment on rear brakes only being good for wheelies is only half valid. As they come surprisingly handy when the front brakes stop working, or become ineffective say if you brake like a mad bastard and overheat something (only ever seen this on a race bike with well worn discs)

but either way if hyo brakes dont work, or are prone to failure dont ride it. dont buy it, dont consider it. I stuggle to beleive that these things are common or a factory problem. Imagine the liability of the company should you get smeared on a car. Do they sell these in the states. if so there is noooo way this is a factory problem.

**Benjiboi** · 17th September 2008, 11:19

I ride a GT250R, the brake lever adjuster on mine is quite stiff, it definately won't be slipping any where. I don't think this is a Hyosung problem, if your adjuster slips and brakes simply fall off maybe you should get a mechanic to have a really good look at it, before you have a really bad accident.

**LilSel** · 17th September 2008, 11:59

Engine braking??? surely downshifting wouldve helped in your situation you described

**xwhatsit** · 17th September 2008, 12:08

Originally Posted by Donut

the bike has been well maintained and is cleaned and checked once a week, this is not the first time my hyo-shit's brakes have failed me.... the first was when my front calliper fell off, this time the master cylinder seized...... nothing like cheap shit... back brakes not the biggie was the front i was more worried about, the only time you need back brakes is for wheel stands and i wont be doing any of them on the hyo

Like I said, I'm not talking about preventative maintenance, I'm talking about fixing things when they break. If the rear master cylinder was seized, why were you riding the bike? Or are you trying to say it just seized all of a sudden, mid-ride?

Also, is it an aftermarket clutch lever or factory? I find it hard to believe that a factory clutch lever would touch the bars with no braking performance whatsoever, regardless of whether it was on setting 1 or not -- that is, unless the pads are worn down to the backing.

**scumdog** · 17th September 2008, 12:41

Originally Posted by Donut

and at the end of the day i make my own decisions and if i choose to speed on an empty(ish) road and put myself at risk well then thats my problem ....

Sooo....you can GUARANTEE that your riding style will NEVER put anybody else at risk??

(Tuis moment I think eh?)

**Slicksta** · 17th September 2008, 13:14

Originally Posted by scumdog

Sooo....you can GUARANTEE that your riding style will NEVER put anybody else at risk??

(Tuis moment I think eh?)

Can you GUARANTEE when the police pull uturns in the middle of the road, they wont put motorcycles at risk??

**CookMySock** · 17th September 2008, 15:35

Originally Posted by xerxesdaphat

I find it hard to believe that a factory clutch lever would touch the bars with no braking performance whatsoever, regardless of whether it was on setting 1 or not -- that is, unless the pads are worn down to the backing.

Actually, on the "1" setting, it is easy to pull the lever very near or against the throttle grip under severe braking. It's a setting for the scaredy-cat ladies with little hands - and fair enough for them, they never really require that much braking, nor would they really know what to do with a sportbike under those sort of braking conditions, and they weigh HALF of what us big blokes weigh.

The GT650R does not have the adjustable brake lever - it's a rather solid-looking alloy item. The GT650R front master cylinder looks like it would swap directly in place of the GT250R one - possibly a good mod for those who want to bash their 250 harder (the 650R levers will not fit the 250 properly.) I would hazard a guess that many GT650R items are a direct swap, such as the adjustable front forks (250 ones are plain old damper rod non-adjustable) and so on. There was actually a GT250R on trademe with 650R forks on it, though I would fit cartridge emulators rather than do this swap.

There are lots and lots of hacks for the GT250R.

Steve

**Bonmaklad** · 17th September 2008, 16:25

hmm now when I did my research into buying a GT250r all i could find was people moaning about it rather then actually testing it when I finally found a few reviews (non biest ones) they found that yes it is not as good of tech as a ninja for an rs but the machanics were fine.

Now I used to do a bit of car racing now I tell you going up and around at 100mph standard car brakes wouldn't be enough they would burn out. Tyres would never hold up. 100mph is for straight roads.

So putting this theory into practice in a bike (i'm new as fook so someone tell me i'm wrong) i check it every day tyre pressures, brakes look for leaking etc. I just do this while putting my jacket, helmet and gloves on. I wouldn't be going around bends at 100mph and probably i'm more then likely to get a few upgrades before I do that on the straight, I am more then happy cruising between 110-130 but again this is on the straights.