Author Topic: 2-up Pressure  (Read 1211 times)

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#10

Offline vsteel

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Re: 2-up Pressure
Reply #10 on: July 07, 2020, 03:37:35 PM
I listened to a podcast where a long time tire expert (used to work at a couple of different tire companies in R&D and specialized in the motorcycle divisions) said to not run tires at the max pressure but to run them 2 lbs less.    Personally I run my tires 38/40  If I run the lower pressures that Triumph recommends I get scalloping.  Running higher pressure helps with that.  It could also be I am a hefty person coming in around 290lbs with my gear on.

   

#11

Offline D16PJM

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Re: 2-up Pressure
Reply #11 on: July 07, 2020, 11:05:38 PM
i went to 36/42 recently and it has transformed the bike for me, feels much better, i found the front a bit slow to turn with the standard pressures.

Pete

#12

Online trade_nancy

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Re: 2-up Pressure
Reply #12 on: July 08, 2020, 06:05:23 AM
I guess it would feel like that into a turn..I'd expect with less pressure..the tyre will be more planted and need more energy to turn. The trade off is - more pressure to get nicer turning..vs less pressure for perhaps a more secure plant of the rubber on the road? I'll experiment with that 36/42 and see what I get.

#13

Online CaptainTrips

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Re: 2-up Pressure
Reply #13 on: July 08, 2020, 05:50:15 PM
One thing I noticed on a rental bike with overinflated tires was that the bike could not hold a straight line on a busy freeway. The turbulece from large trucks would push the bike around. And that was a 900 lb Gold Wing. It turned out that the rental guy ran his bikes 4 lbs over to get better tire mileage. But the bike felt like I was riding on ice.
Last Edit: July 08, 2020, 05:52:08 PM by CaptainTrips
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#14

Offline Fuze

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Re: 2-up Pressure
Reply #14 on: July 08, 2020, 11:07:14 PM
I run 36/42 and it works very well Gen 1.  Feels neutral.  lower pressure feels heavy and sluggish.

 Unfortunately I have been a magnet for road shreds and nails in the last 2 sets to get the full life out. Over 18,000 km on the last set of Avons before picking up a metal spiral. 
if you want something done right, do it again.

#15

Offline knuttt

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Re: 2-up Pressure
Reply #15 on: July 10, 2020, 08:19:50 AM
36/42 was the recommended pressure for the Gen1 bikes, they had smaller tyres than the newer bikes. My Gen3 now runs at 32/39, as recommended for the bigger tyres.

Before my Gen1, I had a GS, that had different pressures for all kinds of situations, printed on a label under the seat.

I did try running my Gen1 at the BMW pressures, same tyres and sizes but it did not feel right (IMHO).

Interestingly, the Tiger pressures were the highest pressure on the GS for fully loaded two up riding.

Andy
"Smoke me a kipper, I'll be back for breakfast" - Arnold 'ACE' Rimmer

#16

Online Crosshairs

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Re: 2-up Pressure
Reply #16 on: July 10, 2020, 04:31:05 PM
*Originally Posted by knuttt [+]
36/42 was the recommended pressure for the Gen1 bikes, they had smaller tyres than the newer bikes. My Gen3 now runs at 32/39, as recommended for the bigger tyres.

What if I have gen 3 tires and wheels on a gen 1 bike... :005: :005: :005:

#17

Offline JG_XRT

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Re: 2-up Pressure
Reply #17 on: July 10, 2020, 04:48:30 PM
*Originally Posted by Crosshairs [+]
What if I have gen 3 tires and wheels on a gen 1 bike... :005: :005: :005:

Then you need to run Gen 2 pressures.  (Gen 3-Gen 1 = Gen 2).

I've solved the entire problem by running solid rubber tires.


Rides the MaidenCruiser

#18

Offline Robin

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Re: 2-up Pressure
Reply #18 on: July 10, 2020, 07:51:45 PM
I’m usually always 2 up and use 36 - 42 but when touring last, 2 up + fully loaded I increased to 38 - 50 hoping to improve the uneven side tread wear. It’s a difficult call but it did seem to help slightly.
Older than the internet.

#19

Offline vsteel

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Re: 2-up Pressure
Reply #19 on: July 11, 2020, 02:25:32 PM
*Originally Posted by Robin [+]
I’m usually always 2 up and use 36 - 42 but when touring last, 2 up + fully loaded I increased to 38 - 50 hoping to improve the uneven side tread wear. It’s a difficult call but it did seem to help slightly.
I would not run the rear over the max recommended pressure.  I say that because I have not seen a bike tire that wants that much pressure, not saying it doesn't exist. 

 


nonskid