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**RohIIT** · 05-30-2016, 04:08 PM

Re: Hero Honda Karizma ZMR

Please get an infrared heat sensing gun from Amazon.

Paisa nai hai re baba

JK

After a city choc a bloc ride, my stock rotor showed a temperature of 99-102 degrees. When touring, this figure went higher, during the course of a day. 107 if I remember correctly.

I have not toured for more than 300 km one way with the new set up yet, but the temperature gauze showed only 86 degrees.
So yes, it is running cooler.

Now the point is the new rotor i.e Hornet's one can be different in terms of design, angular drilling or angular edge cutting will make it act as an centrifugal fan.
But if you take zmr rotor and design it as petal, it will be actually worse.
End of the day our aim should be maximum heat dissipation from pad to disc to ambience.

Aesthetics is NOT the sole reason. Tata Prima racing uses drum brakes with water aided cooling, so should we assume that discs are a fad altogether?
Naah man, we expect better responses from you.

Reason why trucks not just prima ones use drums is
1. Race rules and regulations : I maybe highly wrong in this as i have no idea about tata prima rules.
2. Weight : Trucks weighing around 2-3 tons with disc brakes requires huge discs and braking force .

Drum brakes heat up a lot hence require cooling as well, therefore the need for water cooled drums.

Yes, it costs half as much and provides a better feedback. But then you're rich anyways. You may stay stock!

Cant argue with that , he will get a well paved road first.

**Shreeni0403** · 05-30-2016, 04:58 PM

Re: Hero Honda Karizma ZMR

Contrary to claims about reduced unsprung weight as made by a lot of people, a 'wave' or a 'petal' may not be lighter than a similar size round disc. Reason; the design of wave/ petal makes it prone to flexing, hence the disc may need to be thicker than a round disc of similar size.

So what are the advantages? As per Sandro Milesi, G.M. of Galfer U.S.A., (Galfer holds the patents for the original wave discs), one of the advantage is the enhance bite that the wave offers due to it presenting a new edge as it touches the break pads.

The second advantage offered is enhanced cooling as the wave edge creates turbulence that pulls air onto the break pads thus cooling them. This also helps in removing break dust and keeping the disc and pads in good running condition.

Significantly, Milesi admits that wave discs are not always lighter than round discs. He says they (wave discs) were not designed with that criteria in mind. The purpose of design was as mentioned above, enhanced feeling (bite) & cooler running break setup.

For the full interview check here; New Wave Motorcycle Brakes | Motorcyclist Online

While the above makes sense, there is also the fact that Brembo does not use wave rotors in any of its applications. Yet Bermbo makes some of the best breaking systems in the world. Hence, there is nothing wrong with conventional round disc. And the wave disc does not seem to offer any overwhelming advantage over conventional round disc.

Copy Paste from - http://www.xbhp.com/talkies/general-...ml#post1220032

**Divya Sharan** · 05-30-2016, 05:06 PM

Re: Hero Honda Karizma ZMR

Originally posted by Shreeni0403 View Post

Copy Paste from - http://www.xbhp.com/talkies/general-...ml#post1220032

Agree. Theoretical stories aside, I see 2 things practically:
1. Braking has improved than before. I feel more confident with the brake lever now.
2. Rotor runs cooler and the pads fade less because I don't lose out on braking within 10 km of city b2b traffic/70-100 km of ghat riding like earlier. A recent 300 km ride gave me that much needed experience.

Therefore, I give a rat's ass to what theory says!

**Akkiben** · 05-30-2016, 06:15 PM

Re: Hero Honda Karizma ZMR

Originally posted by Shreeni0403 View Post

For me the difference is drastic because my old rotor was at it's end of life.

I heard from a mechanic that once the rotor is scourged due to worn out pads, the rotor should be given to lathe to be reconditioned, this can be done 2 times. So three lives for a rotor, so think before you change the rotor next time.

**Shreeni0403** · 05-30-2016, 06:30 PM

Re: Hero Honda Karizma ZMR

Originally posted by Akkiben View Post

I heard from a mechanic that once the rotor is scourged due to worn out pads, the rotor should be given to lathe to be reconditioned, this can be done 2 times. So three lives for a rotor, so think before you change the rotor next time.

I would prefer changing it than using a reconditioned disc plate.

**Divya Sharan** · 05-30-2016, 09:04 PM

Re: Hero Honda Karizma ZMR

Originally posted by Akkiben View Post

I heard from a mechanic that once the rotor is scourged due to worn out pads, the rotor should be given to lathe to be reconditioned, this can be done 2 times. So three lives for a rotor, so think before you change the rotor next time.

Minimum thickness allowed is 3.5 mm. If the pads have scuffed the rotor badly, lathe treatment will bring the thickness close to or even below this marker and render it unsafe for use.
So, get a new rotor once that happens.

**vinayakpda** · 06-01-2016, 08:30 AM

Re: Hero Honda Karizma ZMR

Hello Guys,

I am vinayak having a ZMR from 2010. My rear tyre needs a change.

I went to Michelin but did not find a tubeless tyre for our bike.

In MRF i have the option of Zapper Q and Meteor in tubeless.

The dealer near me is charging 2400 for Meteor, i am planning to go with it.

Has anyone from this forum already installed MFR Meteor tyres ? If yes how is your overall experiance.

My bike has run 67500+KMS and its my 2nd tyre change from CEAT Vertigo sport tubetype.

Had punctures a lot of times so want to go for tubeless again.

**Divya Sharan** · 06-01-2016, 09:15 AM

Re: Hero Honda Karizma ZMR

Originally posted by vinayakpda View Post

Has anyone from this forum already installed MFR Meteor tyres ? If yes how is your overall experiance.

Hi Vinayak, both Meteor and Q are wise choices. Both are medium hard compound type tires, hence less puncture prone till at least 15k km.

Meteor has a knobby pattern, so it will provide good grip in gravel and loose surfaces. Off roading will be better.

Q, on the other hand is purely a road tire with Pirelli like grooves. It has slightly better road holding capabilities than the Meteor, especially in monsoon.

P.S - both tires are evenly matched for the first few 1000 km, the subtlety comes out only when they're a little old and worn.

**vinayakpda** · 06-01-2016, 12:11 PM

Re: Hero Honda Karizma ZMR

Originally posted by Divya Sharan View Post

Hi Vinayak, both Meteor and Q are wise choices. Both are medium hard compound type tires, hence less puncture prone till at least 15k km.

Thanks for the info Divya Sharan i will go for Meteor. My bike is down with puncture since 2 days i will get the new tyre fixed today evening.

**ice man** · 06-01-2016, 12:58 PM

Re: Hero Honda Karizma ZMR

Hey guys i am shifting my Zmr from bhubaneswar to Bangalore within few days. As i see few bangalore members in this group can you guys tell me what documents or paper work needs to be done to keep my running in bangalore.

**Divya Sharan** · 06-01-2016, 01:06 PM

Re: Hero Honda Karizma ZMR

Originally posted by ice man View Post

Hey guys i am shifting my Zmr from bhubaneswar to Bangalore within few days. As i see few bangalore members in this group can you guys tell me what documents or paper work needs to be done to keep my running in bangalore.

Carry original invoice with you and visit the RTO in BBSR and ask them for an NOC.
You will be made to fill form 33 if I remember correctly and they'll give you a stamped piece of paper.

Once you reach BLR, visit the nearest RTO within 30 days and just pay the LTT (original invoice + NOC should suffice), no need to re-register to KA number (however you won't get a reimbursement should you move out of KA).
And get a PUC check done immediately after landing in KA.

**Shreeni0403** · 06-01-2016, 06:10 PM

Re: Hero Honda Karizma ZMR

Originally posted by vinayakpda View Post

Thanks for the info Divya Sharan i will go for Meteor. My bike is down with puncture since 2 days i will get the new tyre fixed today evening.

Sir, I recently changed to zapper vyde ! Brilliant grip both in wet n dry conditions. People say tyre life is , not sure on that as I changed recently.

Meteor, afaik gives scary moments in wet conditions. Rains are gonna start, give a thought.

**rreneav1987** · 06-02-2016, 11:17 AM

Re: Hero Honda Karizma ZMR

Originally posted by Shreeni0403 View Post

Sir, I recently changed to zapper vyde ! Brilliant grip both in wet n dry conditions. People say tyre life is , not sure on that as I changed recently.

Meteor, afaik gives scary moments in wet conditions. Rains are gonna start, give a thought.

I would stick with Zapper Q

wonderful experience till now.. with more than 30K kms clocked and just 2 punctures.. I am using a Tube type as TL but next time I would go for the Tubeless

**abhi7013** · 06-02-2016, 08:42 PM

Re: Hero Honda Karizma ZMR

Originally posted by rreneav1987 View Post

I would stick with Zapper Q

wonderful experience till now.. with more than 30K kms clocked and just 2 punctures.. I am using a Tube type as TL but next time I would go for the Tubeless

I guess we both use the same ones. Whats the thickness? 110?

**rreneav1987** · 06-02-2016, 08:44 PM

Re: Hero Honda Karizma ZMR

Originally posted by abhi7013 View Post

I guess we both use the same ones. Whats the thickness? 110?

Yes sir!! it is 110... DS used the same...

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