So, the manual states 2.9 bar rear and 2.7 bar front (1250RT) on cold tyres: So I inflate to the 2.9 and 2.7 using a relaible gauge to check pressures. Of course the on-board tyre pressure monitors/sensors dont work until the bike has been riden a while, so unable to check what the TPM system claims. When the bike has been riden a mile or two the pressures show on the TFT Display as 3.1bar rear and 2.9bar front (or thereabouts) but of course the tyres have warmed up by this point to the pressures will be higher than when cold. Question is, what should be the best settings as displayed in the TFT Screen assuming the bike has been riden, tyres warmed up and the outside temperature circa 21 degrees (UK).
Any tyre experts out there who can advise...put my mind at ease.
Tyres - Cold to Warm Pressure Difference
-
- Subscriber
- Posts: 1464
- Joined: Fri Sep 16, 2016 10:33 pm
- Location: Greater Manchester
- Bike Model and Year: RT 2011
- Has liked: 80 times
- Been liked: 143 times
Re: Tyres - Cold to Warm Pressure Difference
Tyre pressure should be 2.9 rear, 2.5 front. Go off your gauge not tpms.
The GS 'is' the better bike :-)
- Doctor T
- Posts: 1985
- Joined: Tue Dec 21, 2021 10:21 pm
- Location: west sussex
- Bike Model and Year: 2007 R1200RT SE
- Has liked: 1133 times
- Been liked: 304 times
Re: Tyres - Cold to Warm Pressure Difference
Always go by the cold pressure. As the tyre and the air pressure warm up the more you ride. If checked while warm you may put more air than needed.
My TPS is pretty accurate but i always refer to my pressure gauge to make sure.
My TPS is pretty accurate but i always refer to my pressure gauge to make sure.
Trust me I am a retired Doctor and lecturer at Oxford University of Structural and Mechanical/Electrical engineering.
"Blessed are the cracked, for they shall let in the light". Groucho Marx
"Blessed are the cracked, for they shall let in the light". Groucho Marx
- David.
- Subscriber
- Posts: 8300
- Joined: Fri Nov 07, 2014 7:29 pm
- Location: North Yorkshire
- Bike Model and Year: R1200RT (Camhead) 2012
- Been liked: 387 times
Re: Tyres - Cold to Warm Pressure Difference
Using dry nitrogen not moist air in tyres will reduced the cold to warm pressure difference.
- Doctor T
- Posts: 1985
- Joined: Tue Dec 21, 2021 10:21 pm
- Location: west sussex
- Bike Model and Year: 2007 R1200RT SE
- Has liked: 1133 times
- Been liked: 304 times
Re: Tyres - Cold to Warm Pressure Difference
Can you still get nitrogen at tyre dealers? Haven't seen anyone offering it for years.
Trust me I am a retired Doctor and lecturer at Oxford University of Structural and Mechanical/Electrical engineering.
"Blessed are the cracked, for they shall let in the light". Groucho Marx
"Blessed are the cracked, for they shall let in the light". Groucho Marx
- David.
- Subscriber
- Posts: 8300
- Joined: Fri Nov 07, 2014 7:29 pm
- Location: North Yorkshire
- Bike Model and Year: R1200RT (Camhead) 2012
- Been liked: 387 times
Re: Tyres - Cold to Warm Pressure Difference
ATS Euromaster have 250 centres which offer nitrogen tyre inflation, https://www.atseuromaster.co.uk/service ... -inflation
-
- Posts: 44
- Joined: Mon Jan 16, 2023 12:02 am
- Location: Ford City, PA USA
- Bike Model and Year: 2022 R1250RT
- Has liked: 8 times
- Been liked: 8 times
Re: Tyres - Cold to Warm Pressure Difference
My R 1250rt 2022 gets the tire pressure after about a couple hundred yards and holds that same pressure through out the ride. So l use that set pressure in the cold tires difference from spec pressure to adjust the tires on the road. So if it needs adjusted on the road I can stop at air pump station and add the difference needed and this seems to work fine.
Tenequip
Tenequip
-
- Posts: 41
- Joined: Tue May 16, 2023 2:25 pm
- Location: Wiltshire
- Bike Model and Year: R1250 RT LE 2019
- Has liked: 15 times
- Been liked: 14 times
Re: Tyres - Cold to Warm Pressure Difference
The tyres on my 2019 are measured at 20 degrees centigrade as a reference. That attached picture comes from the manual page 140 for my bike year. Other pages say set it cold but it is only when you get to this page that it explains how the system works. I have a really accurate gauge and at 20c it was spot on.
- Attachments
-
- IMG_1133.png (385.03 KiB) Viewed 6038 times