Tire Pressure
- gordone
-
Topic Author
- Offline
- Sustaining Member
- Posts: 1455
- Thanks: 79
Re: Tire Pressure
24 Apr 2018 04:34650ed 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
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Please Log in or Create an account to join the conversation.
- Nessism
-
- Offline
- Sustaining Member
- Posts: 7667
- Thanks: 3038
Re: Tire Pressure
24 Apr 2018 04:55
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.
Recommended pressure for the MT66 and Sport Demon tires is 2 bar (29 psi) front and 2.5 bar (36 psi) rear.
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
The following user(s) said Thank You: gordone
Please Log in or Create an account to join the conversation.
- gordone
-
Topic Author
- Offline
- Sustaining Member
- Posts: 1455
- Thanks: 79
Re: Tire Pressure
24 Apr 2018 05:17Nessism 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
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Please Log in or Create an account to join the conversation.
- TexasKZ
-
- Offline
- Platinum Member
- Posts: 7841
- Thanks: 2431
Re: Tire Pressure
24 Apr 2018 05:34
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
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
The following user(s) said Thank You: Nessism
Please Log in or Create an account to join the conversation.
- Nessism
-
- Offline
- Sustaining Member
- Posts: 7667
- Thanks: 3038
Re: Tire Pressure
24 Apr 2018 07:07gordone 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.
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Please Log in or Create an account to join the conversation.
- gordone
-
Topic Author
- Offline
- Sustaining Member
- Posts: 1455
- Thanks: 79
Re: Tire Pressure
24 Apr 2018 23:19Nessism 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
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Please Log in or Create an account to join the conversation.