Universal Thread - Braking

[csgup1]

[QUOTE=rahul9985;310269]Yes it is not the best way to apply brakes. I drive quite aggressively. If i just squeeze the front lever hard there are chances of losing the traction. U just dont know if the road is good or not. Thats why i pump so that i can brake with confidence. But on very good roads i just squeeze the front lever hard. No pumping.

all the more reason to learn how to brake properly if you ride fast. the trick is to set up and squeeze. something you need to pick up of you ever dream of riding a big bike. try doing your techniqe on a modern day supersports you will most definitely lose the front.

[papan_5069]

Good Braking Techniques

for a good braking technique kindly follow the link. this is for learning purpose only.

Tips for braking on a motorcycle

[sunilg]

for a good braking technique kindly follow the link. this is for learning purpose only.

Tips for braking on a motorcycle

instead buy February issue of xBhp magazine. There is a brilliant article on braking techniques by none other than Old Fox.

[aditaya.chopra]

can anyone tell me the procedure to convert my front single disk to double disk of my r15 and where i can find its material

[Rashid]

All bike under 150cc has smaller rear tires compared to their front tires and are easy to get locked and skiddddddd, there fore IMO more force should be applied on front brakes,also as long as bike is going in a straight line front wheels has a lot of weight on them and are more reliable

oh and BTW never use your brake like you do your clutch

[Lucky Luke]

can anyone tell me the procedure to convert my front single disk to double disk of my r15 and where i can find its material

Hi.
Why would you do that? To look like you've got a bigger machine or what???
All what you would get is heavier "non-suspended" weight. This means that your front wheel will bounce more as the shock absorber in the fork will not be able to cope with such weight. You wil also apply more braking power than what the friction of the tire on the road can accept, and block your wheel!

The question you have to ask yourself is: why are some bikes fitted with double disc and some with single?

The answer is: weight* speed= kinetic energy, and dissipation of this energy when braking (which energy has converted into heat). Tire contact area with the road has to be considered too, as well as the tire's nature, etc....but that would make a too long discussion.

Your R15 is a mere 130 kg, plus gas and yourself. The speed is some 140kmh "practical" maximum. It is not difficult to stop it's little kinetic energy, hence little heat dissipation. Also, we are supposing that you are on the road, not racing. A single caliper can apply enough pressure on the disc and this single disc can easily dissipate the (rather small) heat caused by braking.

Now consider a >200kg, 250kmh capable 1,000cc. bike. The kinetic energy (Ec) needed to stop this mass (m) at that speed (v) is considerable: Ec= 1/2 m*v2 (not to be confounded with Einstein's E= m*c2 !!!). There is much heat to dissipate, and unless one has a very large disc (the limit being the wheel's diameter) the pressure to apply can be just too high for a single caliper, no matter how many pistons in it. In this case, a double disc makes sense. The additional "non-suspended" weight will be a lower fraction of the weight of the whole bike (+ gas and rider). Also the fat front tire with soft compound of this performance bike will accept much more friction with the road before blocking.

While commenting this, I also want to comment about someone's suggestion/ question earlier about fitting one more caliper on his disc. That would be, excuse me, another nonsense. All it would do (besides, as here-above, additional non-suspended weight) is to need less hydraulic pressure for the same braking power, while this pressure is simply depending on the effort aplied to the lever (and the ratio of surfaces in the hydraulic system). If his hand is not strong enough, just lengthen the lever (or do some exercise). Even in race/ emergency braking, two fingers is enough, so what...!!??.
The other thing this "twin caliper" would do is to double the pads area. DANGER: absolutely great way to jam the wheel!

Please guys: stop thinking about "improving" the braking of your bike by such and such "miracle" mod. One which is worth it, though, is to have a rear disc on thse bikes where cost was a prime consideration and are fitted with a (although sufficient most of the time) drum rear brake instead of a disc. Personally, I like the feeling and the endurance of front and rear disc brakes, but that is all. If your bike manufacturer (or his competitors) does not offer different system as option (for example FZ16= no rear disc, Dazzler= rear disc option), just trust them: they know their job pretty well!

[chiragwarm]

For the 1st time after 2 years and 8k KMS. I changed brake fluid to Castrol & rear brake has become pretty loose. Mech told me as the new oil flows, it will get tight.
Should I tighten my rear break as indicated in the manual or ride and wait for it to become tight ?

[antz.bin]

For the 1st time after 2 years and 8k KMS. I changed brake fluid to Castrol & rear brake has become pretty loose. Mech told me as the new oil flows, it will get tight.
Should I tighten my rear break as indicated in the manual or ride and wait for it to become tight ?

GS150R?
Rear Brake?
Fluid??

Please tighten it as mentioned in the manual.

[lalitp]

I got Golden cruiser DOT4 brake oil, made for Maruti-Suzuki cars. My question is, can I use it for my Yamaha SZ-R front brakes? It says DOT 4 brake fluid on the bottle. Will it be helpful?

Cheers!

[rakowli]

I got Golden cruiser DOT4 brake oil, made for Maruti-Suzuki cars. My question is, can I use it for my Yamaha SZ-R front brakes? It says DOT 4 brake fluid on the bottle. Will it be helpful?

Cheers!

You can use DOT 4 brake oil for your bike's front brake. DOT 4 is more effective than DOT3.
I changed my P150 Disc brake oil to DOT4 yesterday and yes there is definately differencein braking in a positive way. i am liking it.
So you can go for it.

[Rashid]

Improving Disc brake:requesting support

Hii guys, i`m riding a Suzuki Slingshot for about 1 and a half years, Now i want to add some more bite to its front Disc, It works nicely but behaves like a drum brake the initial bite is very poor, you need to grab the brake to stop the bike which is okay in higher speed but in cities after many braking, fingers starts to feel pain, Size of the rotor is not mentioned in the manual but it didn't seems very small, it is not big either

I want to modify its braking in such a way that i can stop the bikes using 2 fingers,Lever play is correct so bleeding is not an option, My budget is ~600 for parts which needs to be changed periodically and a total of rs 2000 can add a few more hundreds if required.
Expecting your suggestions!

[Honda_CBF]

@ Rashid,
you can upgrade your brake lines to steel braided brake lines. This will direct more fluid force to brake piston. Still want more bite? Then try using soft compound brake pads.
2000-2500Rs can accommodate both the mentioned mods.
But before doing such mods ensure you have perfect braking system, and its inherently poor.
And change the brake fluid every 2 yrs regardless of feel. Its a preventative maintenance and doesn't cost much.
P.S. Even if brake mod is illegal, no one will know unless you tell them or only if they are very knowledgeable. And hence should not cause any problem.

[SpeedyKol]

@Honda CBF: Where do I get steel braided brake lines? My Fazer with Bybre brakes works quite well.Now if I put steel braided,will that result in wheel locking?
Has anyone tried installing rear disc on Fazer by the way? Am thinking of doing that.

[Honda_CBF]

@Honda CBF: Where do I get steel braided brake lines? My Fazer with Bybre brakes works quite well.Now if I put steel braided,will that result in wheel locking?
Has anyone tried installing rear disc on Fazer by the way? Am thinking of doing that.

well, wheels can lock (even with stock brakes) if one's applying instant pressure on the lever. Installing steel braided lines will make your braking sharper and you'll get more feel on the lever (more communicative)
And yes there's a guy who have installed rear disk on Fazer, sorry can remember his name, try ownership thread.
And for buying location(s) contact kolkata members, though i guess Wellington is a good start.
Edit:
try http://www.xbhp.com/talkies/universa...fectively.html for NOT locking up your brakes.
Cheers.

[Rashid]

@ Rashid,
you can upgrade your brake lines to steel braided brake lines. This will direct more fluid force to brake piston. Still want more bite? Then try using soft compound brake pads.
2000-2500Rs can accommodate both the mentioned mods.
But before doing such mods ensure you have perfect braking system, and its inherently poor.
Meaning??
And change the brake fluid every 2 yrs regardless of feel. Its a preventative maintenance and doesn't cost much.
P.S. Even if brake mod is illegal, no one will know unless you tell them or only if they are very knowledgeable. And hence should not cause any problem.

Not sure where i could buy this,Instead can i install entire kit of FZ/Other bikes without changing the ROTOR??