What tire pressure are you running? - Honda CBR500R Forum : CB500F and CB500X Forums
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  • 1 Post By coinneach
  • 1 Post By Wavefront
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post #1 of 9 (permalink) Old 09-09-2016, 01:06 AM Thread Starter
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What tire pressure are you running?

I'm sure you have noticed the small sticker on the rear swing arm showing the maximum tire pressure for the CBR.
It says 250 kPa / 36 PSI for the front, 290 kPa / 42 PSI for the rear.
These figures mean that the maximum pressure for two-up riding with gear (and accessories) should not be higher than those amounts.
Since I ride by myself I am most happy with 32 PSI in the front and 38 PSI in the rear.
A few more PSI and the bike seems "too hard" and gives too much feedback for my taste, I can feel every crack in the road and my helmet is dancing on my head. A few PSI less and the bike feels "mushy", the steering is getting difficult at slow speeds.
Even when I ride highway, I am happy with running the pressure approximately 10% below max pressure.
Many factors come into play, of course, my weight (78 kg) and the quality of the road surface being the first coming to mind.
My CBR500R came with Pirelli Diablo Rosso II which of course is another important factor, even though the maximum load figure for these tires is 42 PSI for the front and rear.
My question is: How much pressure are you running? Do you adjust it for city/highway riding? Did you change the pressure when you got a different set of tires? Do you adjust pressure when riding two-up or carrying a load?
In short, I'm interested in anything you have to say about tire pressure!


current: CBR500R, CRF250M, MSX125, Yamaha Nouvo 135
previous: CB360, CB450SC (2), VT500FT, XS650 (3), Virago 750, Intruder 800, XJ600S, Intruder 1400, K75S (5), K100RS (5), ZX9R, KLR250, XR650L, DR650SE, Ninja 250, VTR250 (2), CBR150R (3), AX-1
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post #2 of 9 (permalink) Old 09-09-2016, 01:45 AM
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I'm running 36/42 and have no problem with my tires misbehaving. 220 pounds with gear, shock set 3 clicks up, forks cranked down one line. I only ever ride solo.
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post #3 of 9 (permalink) Old 09-09-2016, 01:45 AM
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I always run the nominated pressures as written on the swing arm for front and rear. Any lower and the bike feel "squirmy". Any higher and it feels too hard; I feel the bike loses traction over rough surfaces (and I occasionally ride on dirt so this is quite the issue...). I'm 72kg/160lbs with gear, default shock setting, only ride solo.

I don't have my bike with me, but I thought the swing arm pressures were the recommended pressures, rather than the maximum? I'm pressure sure the max. pressure written on the sidewall of my tires (Pilot Road 4s) is quite a bit higher.
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Last edited by Wavefront; 09-09-2016 at 01:48 AM.
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post #4 of 9 (permalink) Old 09-09-2016, 02:04 AM
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32/32 for daily rides and
30F/28R when im going for twisty mountain rides.
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post #5 of 9 (permalink) Old 09-09-2016, 03:18 AM
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36f, 42r. dunlop roadsmart 2's.
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post #6 of 9 (permalink) Old 09-09-2016, 05:18 AM
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36/44. I find the stock rear shock has slightly better translation with the rear at 44.

Male, 43yrs, 185lbs, 5'8", '14 CBR500R (RWB color), 10k miles, Dunlop D222's, Rotella T6 (every 2k), KN-204 oil filter, 87 Octane, Maxima Chain Wax, Fork Preload adjusters, T-Rex spools, Stainless radiator guard, Shorty adjustable levers, Fork stem RAM mount/USB port, red/black alum grips, Rear tire hugger, Rear seat cowl, Black light (UV) LED engine/undertail lights w/RF remote, Ultra-white LED position light, Plain white Rascal Graphik tank pad, Sea level, city commuter, spirited rider
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post #7 of 9 (permalink) Old 09-09-2016, 05:44 AM
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250/290 kPa ~ 36/42 psi on the stock dunlops d222, stock suspension with correctly adjusted preload front and rear
if i know i will be riding on more slippery surface i may drop the pressure to 240 / 280 kPa or adjust accordingly
i'm about 90 kg total with gear
when i buy new tires i will start with 250/290 kPa and adjust for them from there
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post #8 of 9 (permalink) Old 09-09-2016, 05:57 AM
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93KG, Stock dunlop tires. Since upgrading the rear suspension to GSXR 750 and .85 springs, emulators and 15w oil in the forks + (setting correct sag), I noticed that the rebound was too harsh on roads surfaces that were less than smooth. I tried backing off the fork pre-load but then experienced a floating sensation over bumps.

One day I tried lowering the tire pressure by 2 psi (40R-34F PSI)and it was the answer in terms of providing the right combination between a stiffer suspension and ride quality for me.
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Last edited by iliodi; 09-09-2016 at 06:00 AM. Reason: added info
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post #9 of 9 (permalink) Old 09-11-2016, 11:32 PM Thread Starter
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I didn't realize that there's a tire pressure thread already:

http://www.cbr500riders.com/forum/ho...pressures.html

It seems as if I'm not the only one who thinks the given pressure (36/42 PSI) to be a bit too high.
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current: CBR500R, CRF250M, MSX125, Yamaha Nouvo 135
previous: CB360, CB450SC (2), VT500FT, XS650 (3), Virago 750, Intruder 800, XJ600S, Intruder 1400, K75S (5), K100RS (5), ZX9R, KLR250, XR650L, DR650SE, Ninja 250, VTR250 (2), CBR150R (3), AX-1
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