The Tyre Pressure Thread!

[Lucien Lewis]

Re: The Tyre Pressure Thread!

I just do what they say

[imranaryan]

Re: The Tyre Pressure Thread!

I recently changed my rear tire from 140/60-r17 stock to ceat 140/70-17
Stock pressure was 33
Should my current pressure also be 33 or increase to how much

Gixxer 155r

[B7ACKTHORN]

Re: The Tyre Pressure Thread!

I recently changed my rear tire from 140/60-r17 stock to ceat 140/70-17
Stock pressure was 33
Should my current pressure also be 33 or increase to how much

Gixxer 155r

Follow what's suggested in the manual. If you've changed the tire (in your case) and aren't sure of what pressure to maintain. Check the tire sidewall for min and maximum pressure, and choose somewhere in between say for example, inflate max min rating is provided on the sidewall on the tire 28 psi to 40 psi choose something in between w.r.t to what's suggested in the manual, in your case 30 psi to 33 psi would be a good ballpark.

Interestingly your tire sidewall height should be increased from 84 mm to 98 mm. Do post your reviews in the dedicated Gixxer thread, would come in handy for folks there.

Cheers!
VJ

[Deathwing]

Re: The Tyre Pressure Thread!

I have gotten used to 32psi at the rear and 29 for the front on my ceeber 250 , I weigh about 90-100 KGS 6ft2.

[sarada06884]

Re: The Tyre Pressure Thread!

Honda Dream Neo
Front: 80/100 - 18M/C 47p
Rear: 80/100 - 18M/C 54p

Tyre pressure:
Front: 25psi(both)
Rear: 41psi(33 psi)

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Mine Losing around 7psi per week.. Rear will lose faster. But it is good idea to see if any leakages by spraying water over tyre surface.
I have also got a handpump(150Rs) and pressure gauge (250Rs) so i can check every 2 days

[ATTACH]201868[/ATTACH]

Where did you buy these? I also want one. Can you please share the place you bought or the online Link.

[B7ACKTHORN]

Re: The Tyre Pressure Thread!

Where did you buy these? I also want one. Can you please share the place you bought or the online Link.

You can get these online and or you can get it from reliable bicycle sellers. Pressure gauge and pumps are easily available every where. If you browse over the web, can you can get pretty much good deals.

Cheers!
VJ

[rugved]

Re: The Tyre Pressure Thread!

Hot tyre pressure.

Guys how do you calculate/measure/figure out the air pressure for a tyre when the bike's been riding for quite some time ergo when the tyre is not exactly cold.

[Vattsy]

Re: The Tyre Pressure Thread!

Hot tyre pressure.

Guys how do you calculate/measure/figure out the air pressure for a tyre when the bike's been riding for quite some time ergo when the tyre is not exactly cold.

ADD around 3-5 PSI on a hot day.

When the tyre is not exactly cold (I hope you're measuring it by touching the rubber and not feeling cold, the cold air pressure is around 10-20% (3-5 psi in case of a motorcycle) less than what's being recorded on the mano. To negate that effect, you should add around 10-20% on your cold values.

Ex : The ideal cold tyre pressures for mine read 28 and 32 psi. So, I should be filling 32 and 36 psi on a hot summer day if I inflate soon after I start, and around 35 and 40 psi if I'm in the middle of a long drive (atleast 50km+ riding).

Remember, the tyre temperature is more affected by the speed and exposure to sun rather than by the ambient temperature itself. So, more you think is the temperature, higher the pressures. Also, never exceed 40% of the manual's values if you don't want to witness a blast.

Additional Tip: In case you're very scared of the burst like me, better deflate the tyre considerably, to atleast below 10 psi and then go to your desired values. This is the safest method I've seen.

[rugved]

Re: The Tyre Pressure Thread!

ADD around 3-5 PSI on a hot day.

When the tyre is not exactly cold (I hope you're measuring it by touching the rubber and not feeling cold, the cold air pressure is around 10-20% (3-5 psi in case of a motorcycle) less than what's being recorded on the mano. To negate that effect, you should add around 10-20% on your cold values.

Ex : The ideal cold tyre pressures for mine read 28 and 32 psi. So, I should be filling 32 and 36 psi on a hot summer day if I inflate soon after I start, and around 35 and 40 psi if I'm in the middle of a long drive (atleast 50km+ riding).

Remember, the tyre temperature is more affected by the speed and exposure to sun rather than by the ambient temperature itself. So, more you think is the temperature, higher the pressures. Also, never exceed 40% of the manual's values if you don't want to witness a blast.

Additional Tip: In case you're very scared of the burst like me, better deflate the tyre considerably, to atleast below 10 psi and then go to your desired values. This is the safest method I've seen.

Thanks for this reply.

Yes this is exactly what i was looking for. No, not touching the tyre and not going by ambient temp. But factoring in the heat generated by the tyre itself by motion and friction on the road, as well as the excessive hot surface temperatures of the road itself (here in HYD). I am pretty sure this is the situation at many places around Ind.

So what i observed was. after a considerable running in these situations if i ever had to inflate tyres and if i ever asked the pressure to be made to 35 (on the automated filling pumps) then the machine was actually Deflating the tyre to make to required temp. as the actual pressure was over 40 as displayed by machine.

Note: I generally never fill up air on a hot tyre. But when my bike was new, i took it to fuel pumps to check air pressure During/after a considerable amount of ride to observe what numbers are being shown up due to pressure variations.

[icarious]

Re: The Tyre Pressure Thread!

The Suzuki Gixxer Manual states 29 and 33 psi cold tyre pressures for the bike. However, I fill nitrogen (is free) from a bunker which is 10 kms away from my home. Can anyone tell me the ideal psi I should be filling not to under inflate the tyres when it gets cold? Also, I wonder if the extra ~22% nitrogen in the tyre alters this calculation?

Also, can anyone suggest a good Analog/ Digital Tyre Pressure Gauge for long term use? The commonly used Coido 6075 and Aeoss Mini LCD Digital is full of user complaints on Amazon.

[B7ACKTHORN]

Re: The Tyre Pressure Thread!

The Suzuki Gixxer Manual states 29 and 33 psi cold tyre pressures for the bike. However, I fill nitrogen (is free) from a bunker which is 10 kms away from my home. Can anyone tell me the ideal psi I should be filling not to under inflate the tyres when it gets cold? Also, I wonder if the extra ~22% nitrogen in the tyre alters this calculation?

Also, can anyone suggest a good Analog/ Digital Tyre Pressure Gauge for long term use? The commonly used Coido 6075 and Aeoss Mini LCD Digital is full of user complaints on Amazon.

Coido is a good brand to look forward to. You can fill in nitrogen to the recommended PSI without any problems. As a matter of fact, nitrogen and air are basically the same. It's only that nitrogen doesn't absorb moisture from air which in turn rusts the inner walls of the tire over time, jus. Also, nitrogen runs comparatively cooler, expands less when compared to air which reduces running temperatures. The manufacturer recommended level is the right psi, stick with that.

Always check tire pressure when tire is cold. Hot tire means expanded air and elevated readings.. So, cold tire means the air is in low pressure state and the right reading.

Cheers!
VJ

[icarious]

Re: The Tyre Pressure Thread!

Coido is a good brand to look forward to. You can fill in nitrogen to the recommended PSI without any problems. As a matter of fact, nitrogen and air are basically the same. It's only that nitrogen doesn't absorb moisture from air which in turn rusts the inner walls of the tire over time, jus. Also, nitrogen runs comparatively cooler, expands less when compared to air which reduces running temperatures. The manufacturer recommended level is the right psi, stick with that.

Always check tire pressure when tire is cold. Hot tire means expanded air and elevated readings.. So, cold tire means the air is in low pressure state and the right reading.

Cheers!
VJ

Thanks. I will get the Coido one then.

[bavlo]

Re: The Tyre Pressure Thread!

Hi
I recently changed rear tire and I am little confused about the pressure. Should I stick to the recommended tire pressure or ideal pressure differ for a different brand and compound tire? I ride an impulse and recently change tire to a michelin sirac street from stock ceat grip.

[spartacus69]

Re: The Tyre Pressure Thread!

Hi,
I'm using a impulse. In the front running ceat secura sport- 29 psi and rear it's mrf zapper -34 psi.

[B7ACKTHORN]

Re: The Tyre Pressure Thread!

Hi
I recently changed rear tire and I am little confused about the pressure. Should I stick to the recommended tire pressure or ideal pressure differ for a different brand and compound tire? I ride an impulse and recently change tire to a michelin sirac street from stock ceat grip.

Stick to the manufacturer recommended tire psi, it's okay to run one to psi lower without any problem. Unless you haven't changed the tire with different profile and width than the manufacturer recommended one. If you've changed to a different tire size setup, follow the tire's min to max psi, mentioned in the sidewall, else you can stick the PSI mentioned on the sticker on the vehicle.

Cheers!
VJ