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**sunilg** · 05-13-2011, 05:12 PM

Query approved.

**Eshan-P180** · 05-13-2011, 05:16 PM

Originally posted by my1000cc View Post

Hi all,

I want to know if my bike(Discover 100cc) can be fitted with a wider tyre (100/90 - 17")currently it has the 3.00x17 tyre and rim (both are the original ones that came with the bike)

As I understand, changing rear tyre size might require changing the alloy. I felt that the swing arm & chain cover are the same in Discover 100, 125 & 150 models (models launched after mid 2010).

If I upgrade the tyre to a 100/90 - 17" one,

Will the tyre edges touch the chain guard?
Does the plastic chain guard (the one on Discover 135 2008/09 model) fit in my bike?
Do I need to change the rim to use 100/80 or 100/90 -17"
If 100/90 doesn't fit on this rim, can 100/80 - 17 fit? Is this size actually available?
Will there be any change in true top speed? currently 94kmph as per some of the reviews I read (I am not talking about Odo indicated speed)
Will the chain worn out faster than now, due to extra weight of the new tyre? (If at all I change)

I am waiting eagerly for your responses

Thanks in advance

Been there done that--
You can install the alloy and rubber both....but it is advised and also possible for installing the discover 150 tire on that rim of 100cc itself...

Just change the rubber man...it fits quite well....i had the same discover and had changed the rear rubber cz it was stock and some eurogrip company....all i did was took it to the MRF got myself the pulsar 150cc zapper and voila!!!!! could corner ever bit of tarmac!!!!
No change in numbers buddy...neither top end speed or mileage....infact zapper or those new age tires have less contact area...prefferred for bikes!!!
It wont rub on the sidewalls of the swingarm!!!!

**Samarth 619** · 05-14-2011, 03:34 AM

As I understand, changing rear tyre size might require changing the alloy.

This is totally wrong info. Tyre's sizes can be changed without changing rims.

If I upgrade the tyre to a 100/90 - 17" one,

Will the tyre edges touch the chain guard?
Does the plastic chain guard (the one on Discover 135 2008/09 model) fit in my bike?
Do I need to change the rim to use 100/80 or 100/90 -17"
If 100/90 doesn't fit on this rim, can 100/80 - 17 fit? Is this size actually available?
Will there be any change in true top speed? currently 94kmph as per some of the reviews I read (I am not talking about Odo indicated speed)
Will the chain worn out faster than now, due to extra weight of the new tyre? (If at all I change)

* A 3 inch square tyre is about 8cm or 80mm wide. Your new tyre will widen to 100mm. So, it is expected that it will be 1 cm wider on each side. Of course, it will fit.

* I have fitted the same chain guard on my P180 UG3, with one new hole made in the plastic guard.

I think it should fit in Discover 100. But, be prepared to maintain it well, because your chains are meant for closed covers.
Mostly O-ring chains are used in Open chain cover bikes like P220, etc.

You may get more info on cleaning chains here, post number 4 or 6 I think:

World of Sprockets! - xBhp.com : The Global Indian Biking Community

http://www.xbhp.com/talkies/universal-threads/6145-world-sprockets.html

Share what you think about the motorcycle you own or have owned in the past.

* Don't change the rim at all. It's just not required. You'll just burn money. The 17" tyres within a respectable size (say 100/90x17) will easily fit.
Rim changing is only required when you want to go to other diameters, like 16", 18", etc. and even then its not recommended to anyone!

* Yes, both will fit. In fact, most 17 inch tyres from 80-110mm will fit on your discover 100!
As far as I remember, only one tyre comes in 100/80x17, that is the MRF Zapper S, which is also factory fitted in the Yamaha YZF R15.
It has excellent grip, less weight, but it wears down faster being a soft compound. You can run it for about 12 kkms.

* You might not see a change in top speed. This tyre would be overgearing this bike but, you will need a very long stretch to see the increased top speed. 7.7 bhp is fine only for some 95 kmph at the best.
You might notice slightly less acceleration though.

* Tyre weights are so negligible if you compare them with the entire bike's weight. There's no such phenomenon as chains wearing faster due to heavy tyre.
Keep them oiled and they'll last you long!

**my1000cc** · 05-20-2011, 01:32 PM

Originally posted by Samarth 619 View Post

This is totally wrong info. Tyre's sizes can be changed without changing rims.

* A 3 inch square tyre is about 8cm or 80mm wide. Your new tyre will widen to 100mm. So, it is expected that it will be 1 cm wider on each side. Of course, it will fit.

* I have fitted the same chain guard on my P180 UG3, with one new hole made in the plastic guard.

I think it should fit in Discover 100. But, be prepared to maintain it well, because your chains are meant for closed covers.
Mostly O-ring chains are used in Open chain cover bikes like P220, etc.

You may get more info on cleaning chains here, post number 4 or 6 I think:

World of Sprockets! - xBhp.com : The Global Indian Biking Community

http://www.xbhp.com/talkies/universal-threads/6145-world-sprockets.html

Share what you think about the motorcycle you own or have owned in the past.

* Don't change the rim at all. It's just not required. You'll just burn money. The 17" tyres within a respectable size (say 100/90x17) will easily fit.
Rim changing is only required when you want to go to other diameters, like 16", 18", etc. and even then its not recommended to anyone!

* Yes, both will fit. In fact, most 17 inch tyres from 80-110mm will fit on your discover 100!
As far as I remember, only one tyre comes in 100/80x17, that is the MRF Zapper S, which is also factory fitted in the Yamaha YZF R15.
It has excellent grip, less weight, but it wears down faster being a soft compound. You can run it for about 12 kkms.

* You might not see a change in top speed. This tyre would be overgearing this bike but, you will need a very long stretch to see the increased top speed. 7.7 bhp is fine only for some 95 kmph at the best.
You might notice slightly less acceleration though.

* Tyre weights are so negligible if you compare them with the entire bike's weight. There's no such phenomenon as chains wearing faster due to heavy tyre.
Keep them oiled and they'll last you long!

Originally posted by Eshan-P180 View Post

Been there done that--
You can install the alloy and rubber both....but it is advised and also possible for installing the discover 150 tire on that rim of 100cc itself...

Just change the rubber man...it fits quite well....i had the same discover and had changed the rear rubber cz it was stock and some eurogrip company....all i did was took it to the MRF got myself the pulsar 150cc zapper and voila!!!!! could corner ever bit of tarmac!!!!
No change in numbers buddy...neither top end speed or mileage....infact zapper or those new age tires have less contact area...prefferred for bikes!!!
It wont rub on the sidewalls of the swingarm!!!!

Eshan - Thank you so much, will do the change soon.... any idea about the price? of a 100/90 like the Zapper C (Pulsar rear tyre) or the other zapper (the one on CBZ extreme etc) which one do you suggest?

Do tyres of different brands (but same specs) have different weights?

**my1000cc** · 05-20-2011, 01:36 PM

Originally posted by Samarth 619 View Post

This is totally wrong info. Tyre's sizes can be changed without changing rims.

* A 3 inch square tyre is about 8cm or 80mm wide. Your new tyre will widen to 100mm. So, it is expected that it will be 1 cm wider on each side. Of course, it will fit.

* I have fitted the same chain guard on my P180 UG3, with one new hole made in the plastic guard.

I think it should fit in Discover 100. But, be prepared to maintain it well, because your chains are meant for closed covers.
Mostly O-ring chains are used in Open chain cover bikes like P220, etc.

You may get more info on cleaning chains here, post number 4 or 6 I think:

World of Sprockets! - xBhp.com : The Global Indian Biking Community

http://www.xbhp.com/talkies/universal-threads/6145-world-sprockets.html

Share what you think about the motorcycle you own or have owned in the past.

* Don't change the rim at all. It's just not required. You'll just burn money. The 17" tyres within a respectable size (say 100/90x17) will easily fit.
Rim changing is only required when you want to go to other diameters, like 16", 18", etc. and even then its not recommended to anyone!

* Yes, both will fit. In fact, most 17 inch tyres from 80-110mm will fit on your discover 100!
As far as I remember, only one tyre comes in 100/80x17, that is the MRF Zapper S, which is also factory fitted in the Yamaha YZF R15.
It has excellent grip, less weight, but it wears down faster being a soft compound. You can run it for about 12 kkms.

* You might not see a change in top speed. This tyre would be overgearing this bike but, you will need a very long stretch to see the increased top speed. 7.7 bhp is fine only for some 95 kmph at the best.
You might notice slightly less acceleration though.

* Tyre weights are so negligible if you compare them with the entire bike's weight. There's no such phenomenon as chains wearing faster due to heavy tyre.
Keep them oiled and they'll last you long!

Samarth 619 - You have loaded me with all the info, your words are direct and thanks to you I wont change the rim...

**Eshan-P180** · 05-20-2011, 01:40 PM

Originally posted by my1000cc View Post

Eshan - Thank you so much, will do the change soon.... any idea about the price? of a 100/90 like the Zapper C (Pulsar rear tyre) or the other zapper (the one on CBZ extreme etc) which one do you suggest?

Do tyres of different brands (but same specs) have different weights?

Price iam not aware cz that was 2 years back..but should be around 1500rs....another thing try for tubeless if you get in that size...may be michelins are available but not sure though!!!! but please check for tubeless in MRF too....helps a lot during touring or even city rides

I personally suggest the pulsar tire because-
1) it fits perfect, does not grind the swing arm
2) amazing grip on tarmac ( a little bad in rains, i did not slide or slipped but didnt even ride fast...be cautious on wet surface)
3) last long buddy...mine lasted for odd 27,000 kms-- most of the riding was on hway and rest in city.
4) lastly the tire looks good

jokes apart....grip wise its preferred

CBZ extreme tire i think is a small one...iam not sure though (pls correct me if iam wrong)...

Good luck mate!

**my1000cc** · 05-20-2011, 04:30 PM

Originally posted by Eshan-P180 View Post

Price iam not aware cz that was 2 years back..but should be around 1500rs....another thing try for tubeless if you get in that size...may be michelins are available but not sure though!!!! but please check for tubeless in MRF too....helps a lot during touring or even city rides

I personally suggest the pulsar tire because-
1) it fits perfect, does not grind the swing arm
2) amazing grip on tarmac ( a little bad in rains, i did not slide or slipped but didnt even ride fast...be cautious on wet surface)
3) last long buddy...mine lasted for odd 27,000 kms-- most of the riding was on hway and rest in city.
4) lastly the tire looks good

jokes apart....grip wise its preferred

CBZ extreme tire i think is a small one...iam not sure though (pls correct me if iam wrong)...

Good luck mate!

Thank you so much Eshan....I am not sure if I can afford michelin ( I believe its costlier than MRF) I will go ahead with th epulsar 150 and will surely try for the tubeless one.

**Guru_DTSi** · 05-21-2011, 12:56 PM

Go for the MRF Zapper eyes closed. No other changes required. The only drawback of the Discover rim is that you can't set it up as Tubeless. The Valves used for tubeless tyres doesn't fit it. The puncture shop guy I went to, however did some desi jugaad and made it possible... 7k Kms after the fit with three long rides of 600+ kms and it hasn't even reduced air pressure...

**squid** · 01-10-2013, 07:14 PM

Originally posted by Guru_DTSi View Post

The only drawback of the Discover rim is that you can't set it up as Tubeless. The Valves used for tubeless tyres doesn't fit it.

Is this true for the new Discover125ST too? I've heard a lot of bad things about Kenda tyres that come along with the bike. So I would want to change the tyres.
The original ones are tube type and would like to go for tubless.

Please help.

Announcement

Can Disocver 100 DTs-si use the rear wheel (alloy + 100/90 tyre) of Discover150

Can Disocver 100 DTs-si use the rear wheel (alloy + 100/90 tyre) of Discover150

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