Tyre pressure - BMW S1000RR Forums: BMW Sportbike Forum
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post #1 of 10 (permalink) Old 05-15-2018, 01:51 PM Thread Starter
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Tyre pressure

Who uses what tyre pressures?
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post #2 of 10 (permalink) Old 05-15-2018, 01:53 PM
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Quote:
Originally Posted by Joejtss View Post
Who uses what tyre pressures?
For street riding, by the book. That's 42 rear, 36 front.

For the track. I start 34/34 and may go as low as 30/30
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post #3 of 10 (permalink) Old 05-15-2018, 02:13 PM
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I only weigh 142 pounds without clothing and run 41/35. Maybe only psychological, but factory 42/36 feels harsh for my weight. I'd run 40/34 previously, which felt more comfortable, but probably increases wear.

I ride canyons in the mountains exclusively, for what it's worth...
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post #4 of 10 (permalink) Old 05-15-2018, 04:13 PM
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EDIT: Street Pressures

For many years 2lbs under the listed max, 40R/34F. Let the softer compound do the work, and keep the tire carcass from flexing too much to get good mileage out of a set. Though, on this last set of M7's in the winter I ran 38R/32F just to warm the temps up on cold days in the mountains. Might keep this slightly lower pressure into the summer and see if I like the feel better. Also, running Slick mode or User mode with the engine set to slick seems to eat tires (1/4 less life) for no appreciable increase in speed, at least on the street. Race mode seems much better at preserving tires while not actually slowing you down.

I don't race or do track days (yet), so I can't vouch for any of that but I can say proper street (not track on the street) pressures are key to not just destroying your tires, especially the rear.
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post #5 of 10 (permalink) Old 05-15-2018, 05:07 PM
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32-32 / 30-30 street

28-24 track
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post #6 of 10 (permalink) Old 05-15-2018, 09:49 PM
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32/30 street on M7rr

33/25 off warmers track on sc2/sc2

Generally...
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post #7 of 10 (permalink) Old 05-15-2018, 10:59 PM
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Quote:
Originally Posted by Joejtss View Post
Who uses what tyre pressures?
This is such a vague question that requires context. What are you looking for? Street or track? Pace/group? Which tires/model? I could give you my track pressures for tires I use when the track surface temp is above 90 deg F, but that wouldn't help you if you're running Q3+'s.
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post #8 of 10 (permalink) Old 05-16-2018, 08:13 AM
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I use helium. Makes for a more "humorous" ride.
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post #9 of 10 (permalink) Old 05-16-2018, 12:25 PM
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I use helium. Makes for a more "humorous" ride.
I use medical grade nitrous oxide, I just don't waste it on my tires....

Making America Great Again, one melted snowflake at a time......

"Madness": 2015 Motorrad S1000RR with the DDC and "Forgies".
'01 Suzuki Gixxer 1k Blu/Wht (Sold - 79k miles).
'91 Kawasaki KX500 (Still got it).
'86 Suzuki Gixxer 1100 Blu/Wht (Sold - 68k miles).
'83 Suzuki GS1100ES Red/Blk (Sold - 60k miles).
'82 Yamaha 650 Maxim (Sold - 50k miles).

"Hangin's too good for 'im.....BURNIN'S too good for 'im.......he should be torn into little-bitsy pieces and BURIED ALIVE!"
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post #10 of 10 (permalink) Old 05-16-2018, 06:07 PM
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I weigh 135 lbs, sans gear, mostly commuting, 32fr/34 rear, cold. need to get to the track. I usually start with 30/30 cold for the track. Q3 or Q3+.
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