Author Topic: Tire pressure on 500 X 2019 front wheel 19 "  (Read 3464 times)

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Offline CB500X

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Re: Tire pressure on 500 X 2019 front wheel 19 "
Reply #10 on: November 16, 2019, 05:26:52 PM
I was given a brief lecture on tyre pressures.

.... and they said what ?

Offline robflyte

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Re: Tire pressure on 500 X 2019 front wheel 19 "
Reply #11 on: November 17, 2019, 06:45:06 AM
that not getting the pressures correct will result in premature tyre wear, the tyres are expensive and I should not let them get too low.
I don't understand why the pressures they put in a high for the front and low for the rear.

Offline Moreorles

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Re: Tire pressure on 500 X 2019 front wheel 19 "
Reply #12 on: November 24, 2019, 09:15:02 PM
*Originally Posted by robflyte [+]
that not getting the pressures correct will result in premature tyre wear, the tyres are expensive and I should not let them get too low.
I don't understand why the pressures they put in a high for the front and low for the rear.
I had a similar experience. The service guys didn't exactly lecture me but just told me the tire pressure where wrong and reset them to 32 and 38. I decided that tire pressures are a dark art and settings are personal depending on weight and riding conditions.

Offline trollbiker

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Re: Tire pressure on 500 X 2019 front wheel 19 "
Reply #13 on: November 24, 2019, 10:55:59 PM
29/41 psi is the recommended pressure according to the manual. Did use that for the OEM tires and it was OK. 36 psi front sounds a lot for such a light bike as the CB500X, its actually the same pressure recommended for R1200GS.
4 wheels moves the body, 2 wheels moves the soul.

Online Neox

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Re: Tire pressure on 500 X 2019 front wheel 19 "
Reply #14 on: November 24, 2019, 11:38:12 PM
*Originally Posted by robflyte [+]

I don't understand why the pressures they put in a high for the front and low for the rear.
Pressure is a ratio between tyre size and weight of the vehicle.
Same pressure for truck tyre and bicycle tyre...

Offline timur

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Re: Tire pressure on 500 X 2019 front wheel 19 "
Reply #15 on: November 25, 2019, 08:16:49 AM
Narrower tire deflects more with the same pressure. So they need higher pressure to reduce tire deformation and to stabilize the carcass for lateral loads.

Offline robflyte

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Re: Tire pressure on 500 X 2019 front wheel 19 "
Reply #16 on: November 25, 2019, 09:56:52 AM
@neox and @Timur, is Honda wrong or their manual has a mistype?

I have set 29 front and 41 rear as per the manual, went for a one hour ride and when I got back I used an infrared camera to measure temperatures, both identical. Proves nothing but I like to think the same temperatures means similar wear.

Offline timur

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Re: Tire pressure on 500 X 2019 front wheel 19 "
Reply #17 on: November 25, 2019, 11:22:31 AM
*Originally Posted by robflyte [+]
@neox and @Timur, is Honda wrong or their manual has a mistype?

I have set 29 front and 41 rear as per the manual, went for a one hour ride and when I got back I used an infrared camera to measure temperatures, both identical. Proves nothing but I like to think the same temperatures means similar wear.
I think 29 is ok for offroad (or even 25/22 for sand and snow), but not for tarmac. Sure Honda knows what they are doing and seems it works well - however tyre pressure in manual is an averaged number.

So I would experiment a bit with pressures. It also depends on what type of tyre you're running and the usage you'll give to your bike - for 100% road tyre a bit of higher front pressure could work better - maybe 33/32 front (I run 34/35 front 39/38 rear on my 2017 and I'm 65 kg weight).

Regards

Offline Swanny

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Re: Tire pressure on 500 X 2019 front wheel 19 "
Reply #18 on: November 25, 2019, 01:25:22 PM
The way I understand it, if the tyre pressures are too low the tyre overheats and wears quickly apart from handling like a pig  :176:
Life... It's Just a Ride  :305:

Offline Ppimouss

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Re: Tire pressure on 500 X 2019 front wheel 19 "
Reply #19 on: April 26, 2020, 11:07:03 AM
I would trust Honda over the local shop any time.
Recommended tire pressure for street riding has to cover the potential for long period of high speed with little to no lean angle.
If I know I am not going to have these conditions (track day or only twisties) I would reduce the pressure slightly for added grip (at the expense of tire life)
I have not tried it with the cb (bloody lockdown), but did it with my previous bike