Tire Pressure

  • gordone
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24 Apr 2018 04:34 #782276 by gordone
Replied by gordone on topic Tire Pressure

650ed wrote:

gordone wrote: I wiill start with:
front = 34 psi = 2.3 bar
rear = 38 psi = 2.6 bar

And see if I`m happy, I understand I can monitor the pressure and the wear and tear to see if its okay.

Stop me if I`m wrong :)


34 psi in the front tire sounds way too high to me as I suspect that will make the front tire hard as a rock. My front tire is a 100/90 V 19 Pirelli Sport Demon, and I run 26 - 28 psi in it. It works great. Ed


Thank you, I have:
100/90-19 M/C 57H MT66 Pirelli
130/90-16 M/C 73H MT66 Pirelli

Front:
26 - 28 psi, okey.

Rear:
What shall I start with here then ? what do you have ?

1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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24 Apr 2018 04:55 #782278 by Nessism
Replied by Nessism on topic Tire Pressure
When in doubt, check with the tire manufacturer.

Recommended pressure for the MT66 and Sport Demon tires is 2 bar (29 psi) front and 2.5 bar (36 psi) rear.
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24 Apr 2018 05:17 #782280 by gordone
Replied by gordone on topic Tire Pressure

Nessism wrote: When in doubt, check with the tire manufacturer.

Recommended pressure for the MT66 and Sport Demon tires is 2 bar (29 psi) front and 2.5 bar (36 psi) rear.


I have sent them a email, but no replay.
Wow the information I found on a forum is wrong then....

The pressure you list up I shall use, must I take off 2 psi compensate for warm/heated tires or can just fill 2 bar and 2.5 bar on cold tires?
Just for double checking....

Again thank you ! :)

1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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24 Apr 2018 05:34 #782281 by TexasKZ
Replied by TexasKZ on topic Tire Pressure
Tire pressure recommendations for street bikes are for cold (ambient temperature) tires. There will be a slight increase as the tire temperature increases.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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24 Apr 2018 07:07 #782283 by Nessism
Replied by Nessism on topic Tire Pressure

gordone wrote:

Nessism wrote: When in doubt, check with the tire manufacturer.

Recommended pressure for the MT66 and Sport Demon tires is 2 bar (29 psi) front and 2.5 bar (36 psi) rear.


I have sent them a email, but no replay.
Wow the information I found on a forum is wrong then....

The pressure you list up I shall use, must I take off 2 psi compensate for warm/heated tires or can just fill 2 bar and 2.5 bar on cold tires?
Just for double checking....

Again thank you ! :)


The information I posted was straight from the Pirelli website. No need to email for the answer.

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24 Apr 2018 23:19 #782330 by gordone
Replied by gordone on topic Tire Pressure

Nessism wrote:

gordone wrote:

Nessism wrote: When in doubt, check with the tire manufacturer.

Recommended pressure for the MT66 and Sport Demon tires is 2 bar (29 psi) front and 2.5 bar (36 psi) rear.


I have sent them a email, but no replay.
Wow the information I found on a forum is wrong then....

The pressure you list up I shall use, must I take off 2 psi compensate for warm/heated tires or can just fill 2 bar and 2.5 bar on cold tires?
Just for double checking....

Again thank you ! :)


The information I posted was straight from the Pirelli website. No need to email for the answer.


What meant was I sent email to Pirelli one week ago, but have not got any replay, I trust your information !

Will test the tire today with correct pressure :)

1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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