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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Air pressures in tires /cgi-bin/YaBB.pl?num=1376578444 Message started by Afan on 08/15/13 at 07:54:04 |
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Title: Air pressures in tires Post by Afan on 08/15/13 at 07:54:04 In the S40 Guide, I got with my bike, I found that the tire pressure is different then the tire pressure written on the tire itself. What's correct? Whom to believe? :) |
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Title: Re: Air pressures in tires Post by Serowbot on 08/15/13 at 08:31:18 Believe the bike... Tire manufacturers give the maximum recommended pressure, not the correct pressure... Tire pressure is based on load... tire manufacturers have no idea what the weight of your bike is... ;).... |
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Title: Re: Air pressures in tires Post by deejaysham on 08/16/13 at 08:37:41 Just got my bike on craigslist without a user guide so if you could tell me, what is the correct tire pressure? I was going to top up today in fact. |
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Title: Re: Air pressures in tires Post by Serowbot on 08/16/13 at 08:50:31 I think it's something like,... 31f/29r... Add a couple if you're big, .. or reduce a couple if you're small... I usually do 32 in both... because I'm lazy... by the time I check it again, it's way below 28lbs.. ... like, 15lbs... ;D... PS... it's also on a sticker on the bike... I think it's on the belt guard... TIP... those nuts on the valve stem... they should not be tightened down...(they are for installation purposes only)... unscrew them up towards the cap... that gives the tube a tiny bit of room to slip during hard stops and acceleration... It hardly ever happens, but a tightened down stem can cause the tube to tear... ;)... |
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Title: Re: Air pressures in tires Post by deejaysham on 08/16/13 at 08:56:42 Thanks for the info Serowbot! Realizing that I didn't know this has pushed me to search the forums and find the pdf version of the OM, too. |
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Title: Re: Air pressures in tires Post by Afan on 08/16/13 at 09:26:19 Tire pressure Table |
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Title: Re: Air pressures in tires Post by Serowbot on 08/16/13 at 09:42:23 Do I get any points for being sorta' closeish?... ;D ;D ;D... |
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Title: Re: Air pressures in tires Post by Afan on 08/16/13 at 09:42:49 I just checked that does it say on tires and, if you asked me 15 minutes ago I would bet my life I read few days ago numbers, and they were bigger then in Manual... ?!?!!?!? And nothing on rear tire?!?!? |
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Title: Re: Air pressures in tires Post by Afan on 08/16/13 at 09:45:19 7563746971646972060 wrote:
By all means! ;) |
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Title: Re: Air pressures in tires Post by Afan on 08/16/13 at 09:48:15 By the way, I'm 240lbs. Do I fall into first category "Solo riding with a little cargo" or "Solo Riding with heavy cargo", where, in my case, cargo is my stomach? :D |
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Title: Re: Air pressures in tires Post by WD on 08/16/13 at 09:55:04 The manual is set for the "average" laid back rider. If you ride a lot or aggressively, you will keep boosting tire pressures until the bike feels "right". I run mine at 35-40 (prefer 40 in both tires) psi in swingarm frames, brings back a bit of the steering response and control lost to the rear shocks. I grew up on rigid frame bikes, so to me, they hug the line better and feel 1000x more stable than the "squirm" inherent in a chassis with a swingarm and dual shocks. Not a lot of play in a modern suspension set up, but it is there, and noticeable. From 2/1998-2/2008, if the road was ice free, I was on two wheels. Rain, snow, tropical storm with hellacious winds... I hate driving, so I rode. I put 44K miles on one bike in 18 months, and never went outside the 2 counties I lived/worked in. Put 3K miles on it in the first week of ownership. |
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Title: Re: Air pressures in tires Post by Afan on 08/16/13 at 09:56:26 While on Owner's Manual... For fuel it said, the bike requires regular unleaded gasoline with minimum 87 octane rating. Is this the best solution or 89 or 93 are better? Or, simply, what's the best? I'm assuming 87 is the optimum? |
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Title: Re: Air pressures in tires Post by oldNslow on 08/16/13 at 10:01:58 4D6A6D620C0 wrote:
Right. It's a low compression engine. No need for higher octane. |
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Title: Re: Air pressures in tires Post by WD on 08/16/13 at 10:09:36 I've run mine on as low as 85.5 octane, ran fine. Use the cheap stuff, bike likes it and better for your wallet. |
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Title: Re: Air pressures in tires Post by Boofer on 08/16/13 at 18:06:43 1. I would like to say "Amen" to Serowbot for finally telling the truth. That didn't sound right. For finally going against the old story that pressure is on the sidewall. B. The "H" rating on our tires is a speed and/or handling rating. The numbers such as 56 (Or whatever) is the load rating. Google these numbers for your mc or car tires. Last: I run around 40 in front and rear with ME 880s. I have new tubes and find I can lose as much as 10 lbs in 3 weeks to a month. Just checked them and aired up two days ago. No matter what you figure out to use BE SURE to check your tires every couple of weeks with a guage that has been shown to be accurate. :) |
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Title: Re: Air pressures in tires Post by Afan on 08/16/13 at 21:25:57 527F7F767562100 wrote:
There are tons of gauges on the market. From $ to $$. Mechanic or electronic... With "scale" or LCD. Which one would be optimum in accuracy/price? Is the one like pen for $ good enough? Or, it's worth spending $10-$20 for digital one? Or this question doesn't make a sense and it's irrelevant. :D |
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Title: Re: Air pressures in tires Post by Serowbot on 08/16/13 at 23:20:41 Battery gauges, have dead batteries every time I reach for one... (not that often)...;D ;D ;D... I have found the mechanical ones with a square readout tube, to be more consistent than the kind with a flat tube... ... but,.. don't be overly concerned anyway.... air pressure is not that exact ... it changes minute by minute, as tires heat and cool, and barometric pressure and elevation changes... ...a few pounds either way, don't mean... diddly... :-?... |
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Title: Re: Air pressures in tires Post by justin_o_guy2 on 08/17/13 at 04:03:55 Dial air gauges are more consistent than the ones with a sliding stick, |
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Title: Re: Air pressures in tires Post by Boofer on 08/17/13 at 17:59:13 I have a guage in each car or truck and one in the camper plus one on my bike. I don't give over $5 for a guage and do like most with the square slide. As for accuracy, check them all on the same tire and see if they are close to each other. If not toss, it. I have a plug in 12v compressor with built in guage my wife bought on clearance for $5. It is about 3lbs optimistic, so I use it anyway and allow for the error. Use what you like, but please understand a low tire will squirm out from under you in a curve. :) |
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Title: Re: Air pressures in tires Post by verslagen1 on 08/17/13 at 18:17:43 just don't test the pressure... replace the air for better mpg. ;D those air molecules get worn out. |
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