Anyone built a "sho...
 

[Closed] Anyone built a "should be lightweight" bike that comes out heavy???

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I've just finished my Xc build- was aiming to get a nice lightweight XC, so I got a bunch of XTR gear a light-ish BMC frame and built it up- but it seems heavy to me- wondered if anyone out there may know the culprits in this build???

[url] http://garrysiddon2404.fotopic.net/p58248847.html [/url]

BMC frame, Reba Team Fork, Full XTR drivetrain and wheels, Thomson stem and seatpost. Any clues what I should replace anyone?


 
Posted : 16/05/2009 4:59 pm
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You could loose over 1/2lb on stem, seatpost and saddle.

Trouble is it starts to get expensive, near to £1 per gram saved.

Although very good, the wheels/ tyres aren't the lightest around either.


 
Posted : 16/05/2009 5:03 pm
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Thomson stem, those wheels are tyres are heavy. There's nothing on there particularly light, little things add up.


 
Posted : 16/05/2009 5:03 pm
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Get some foam grips, if those are lock-ons you'll save 100g for £5.


 
Posted : 16/05/2009 5:04 pm
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Egg-beaters will save 1/4lb for £175 ti versions or 1/2lb for £375 4ti versions!


 
Posted : 16/05/2009 5:06 pm
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What does it weigh ?


 
Posted : 16/05/2009 5:07 pm
 dobo
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probably the biggest best weight saving and noticable would be by replacing the tubeless tyres for some lighter non tubeless ones


 
Posted : 16/05/2009 5:09 pm
 will
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Looks fast, surly that is all that matters?


 
Posted : 16/05/2009 5:10 pm
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wheels:no tubes ztr race 7000 on tune mig/mag hubs
Rear mech :carbon plates and jocky wheels from fibre lyte
Fork:dt swiss xrc 100 rc
Grips:foam from decathalon 28g for £3
tyres:racing ralphs
Bars,bar end,seatpost and seat post binder:kcnc
pedals:triple ti egg beaters
tune speedneedle saddle
etc.. 😀
thats what i would do...


 
Posted : 16/05/2009 5:10 pm
 Smee
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Have a piss and a shit before you go out and save yourself a few quid.


 
Posted : 16/05/2009 5:12 pm
 dobo
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well that little lot will probably make him remortgage the house 😀


 
Posted : 16/05/2009 5:13 pm
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Foam Decathalon grips are 1/2 the weight of Ritchey WCS or is that claimed weight(!) or is that each grip?


 
Posted : 16/05/2009 5:13 pm
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Mig/mag aren't disc hubs, Prince/Princess is where it's at.

Those bar ends are lighter than KCNC.

Gotta be 4ti Egg Beaters

Furious Freds not RRs

Learn how to be a weigh weenie 🙂


 
Posted : 16/05/2009 5:13 pm
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How heavy is the frame?


 
Posted : 16/05/2009 5:14 pm
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Frame's around 1.6kg. I hadn't realised that the tubeless tyre wheel combo actually cost weight, thought it saved it- show's what i know...How about the fork- is that weighty? not sure of the all in weight- just 'feels' heavy.


 
Posted : 16/05/2009 5:16 pm
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The Reba Teams are 1636g without pop-lock so you save a chunk there. In fact well over 2lb if you had rigid Pace RC31's!


 
Posted : 16/05/2009 5:18 pm
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UST tyres and UST rims weighs the same (ish) as normal tyres and normal rims with tubes. Once you start including lightweight tyres run as tubeless on Stan's rims, the weight falls quite a lot.

Those wheels are c1600g, the tyres c700g each.

Stan's ZTR Race/AM Classic (extreme example) are 1210g, Schwalbe Rocket Rons are an impressive all rounder and come in <400g. There's 2 pounds gone straight away...

Like I said, there's nothing on there that's heavy per se, just lots that's not particularly light.


 
Posted : 16/05/2009 5:19 pm
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By using UST's you adding at least 1/2lb over their tubed equivalent (taking into account no inner tubes and a bit of latex via a Stan's type rim)


 
Posted : 16/05/2009 5:20 pm
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Don't worry about it. You'll get the fitness to ride it. You could always leave the bike at home and just run along the trails.


 
Posted : 16/05/2009 5:29 pm
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Remove bar ends and cut bars down.
Remove fork remote.
Remove valve caps.
Remove computer/Gps bracket.


 
Posted : 16/05/2009 5:32 pm
 dobo
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oh, and please no more mixing pounds and grams in the same post "cough" njee20 and anthony 😉


 
Posted : 16/05/2009 5:35 pm
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Why not? Some things are measured in metric, some in imperial. Fork steerers are the best, 1.125"x300mm 🙂

Whole bikes are in pounds, most parts are in grammes, nowt wrong with that!


 
Posted : 16/05/2009 5:37 pm
 dobo
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I'm a simple being and cant do the maffs, should be a weight weenie sticky with this in the title 1 pound = 453.59237 grams


 
Posted : 16/05/2009 5:43 pm
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I weighed my Whyte 19 Ti SS on my LBS's Park scale last week and it came to 21lb 8oz. Which I thought was a bit heavy for a SS but it also makes me think that a lot of the weights people claim bear little resemblance to the truth 🙄


 
Posted : 16/05/2009 5:45 pm
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yep i built up a gt zaskar team 27lb.


 
Posted : 16/05/2009 5:57 pm
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Does all this not just show that its really not worth worrying about?


 
Posted : 16/05/2009 6:01 pm
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LOL@Smee!

I built my Zaskar uber light. Rode like trollup! Carbon bits took out the sting.

Now I'm heavy from taking a break.

Rebuilt it burly and it rides nice. Best thing I can do is lose 10kg lard!

A friend still canes me on his 70's road bike-all about the rider?


 
Posted : 16/05/2009 6:42 pm
 MTT
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as above;

- Wheels have to go, it doesnt matter much about the static weight of the bike, its all about the rims and the tyres.
- Target cheap savings; Foam grips, Toupe Ti/SLR, KCNC seatpost, syntace/ritchey stem, KMC X9SL chain, so £200 and 1.5lbs ish off.
- Or £500 on some stans on spaim lasers (dont bother with CXRays), AM classic hubs and some nice 400-450g tyres. -2lbs.

to put it another way; £700=3.5-4lbs

Just loose a bit of weight and put on some legs. Seriously.


 
Posted : 16/05/2009 6:52 pm
 aP
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None of my bikes are as light as I thought they were going to be.
I was really disturbed at quite how heavy my bmc cross bike is, until I realised that to start with the wheels were 1900gms.


 
Posted : 16/05/2009 7:08 pm
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Has anywon mentioned lose some weight from yourself


 
Posted : 16/05/2009 7:10 pm
 aP
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Someone at the top did, but when it's cost so much to put it on it seems a shame not to keep it.


 
Posted : 16/05/2009 7:11 pm
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Dibb's, just to make you feel bad, the actual weight (when the frame arrives) of my Cotic Simple S/S will be 17lb 10-14oz (depending on exact frame weight) exc. pedals and tyre latex.

And thats with sensible wheels and nothing out the ordinary spec wise.


 
Posted : 16/05/2009 7:13 pm
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Antony: Is that with a rigid fork as well as a lack of gears though?


 
Posted : 16/05/2009 7:16 pm
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Posted : 16/05/2009 7:16 pm
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Rough Spec;

Cotic Simple frame
RC31 carbon rigid fork
Olympic on King with Revolution spokes (brass nipples)
Racing Ralphs
XTR cranks, steel c-ring and cog
Hope Mini X2 Pro's 160's
SLR saddle on carbon Alien post.
EC90 bars EA90 stem

I have an anal spreadsheet with all the actual weights of all the components!

All sensible kit, but I only weigh 65kg so I'm not especially harsh on my kit.


 
Posted : 16/05/2009 7:37 pm
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Anthony that doesn't make me feel too bad after all your forks are the best part of 2lb lighter than mine and you've still got pedals to add plus I've got pretty heavy tyres, but I've spec'd stuff that I know works for me and is comfy.


 
Posted : 16/05/2009 7:58 pm
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Yeah, and iirc you have about 4 other Whytes in the stable to choose from 🙂

For the first time I have really made the effort to spec. light parts instead of what looks ace. Unfortunately it does make you a little obsessive, and once it's covered in mud it won't make much difference anyway!

Can't wait to ride it.


 
Posted : 16/05/2009 8:08 pm
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My Turner Burner weighs far to much, I thought it would be around 25Lbs, nearer 28 🙁

On the plus side this has inspired me to make my Ti hardtail SS & rigid again, I still doubt it will be sub 20Lbs with very light kit though.

[img] http://newimages.fotopic.net/?iid=y9ubk3&outx=600&quality=70 [/img]

Or [url= http://gallery41647.fotopic.net/p21616743.html ]here[/url] if fotopic have messed with the settings again.


 
Posted : 16/05/2009 8:19 pm
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It's been said already, but a lot of bike manufacturers are outright liars when it comes to weights.


 
Posted : 16/05/2009 8:46 pm
 gee
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V Heavy wheels and tyres.

Go with Stans / normal tyres and spooge.

GB


 
Posted : 16/05/2009 8:51 pm
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Just testing

[img] http://images.fotopic.net/?iid=y9ubk3&outx=600&quality=70 [/img]

😉


 
Posted : 16/05/2009 8:51 pm
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Posted : 16/05/2009 8:52 pm
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What what what, you could spend another £500 saving a couple of pounds... or have a sh@t before you go for a ride.


 
Posted : 16/05/2009 9:32 pm
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Dibbs - Member
I weighed my Whyte 19 Ti SS on my LBS's Park scale last week and it came to 21lb 8oz. Which I thought was a bit heavy for a SS but it also makes me think that a lot of the weights people claim bear little resemblance to the truth

and I bet that you have been riding it for 2 weeks solid without cleaning it before weighting it so there must be at least 1lb of Quantocks dust on it and we will not speak of that heavy poverty chainset you fitted 😆

So I wonder how heavy my Simple is, must drop into ralphies


 
Posted : 16/05/2009 10:00 pm
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you could spend another £500 saving a couple of pounds... or have a sh@t before you go for a ride.

Or do both? I tend to rid myself of waste whenever I feel the need - don't you?


 
Posted : 16/05/2009 10:19 pm
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How's it feel to ride? If it's only on the scales the thing comes up heavy, forget it and ride!


 
Posted : 16/05/2009 10:27 pm
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Having weighed a hell of a lot of bikes at races everyone's are heavier than they think. I do quite enjoy shattering dreams!

MSC were at Dalby last week, they told me their £5200 hardtail there was '18.1lbs, just been weighed out the back' I took it and stuck it on my scales... 20.3lbs, I want their scales, then my Epic would be under 19!

Re the sub-18lb Simple: never believe weights based on the combined totals on a spreadsheet, even if they're 'actual' weights, the sum total is always way under the actual weight. That's a pretty special weight even for a rigid SS


 
Posted : 16/05/2009 11:52 pm
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I have an anal spreadsheet

😯


 
Posted : 17/05/2009 7:31 am
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It's been said already, but a lot of bike manufacturers are outright liars when it comes to weights.

The thing that prompted me to weigh my bike was the fact that I was in the LBS workshop the other day and they weighed the standard Whyte 19 carbon (XT version) they'd just built and it came out at 22lbs 8oz without pedals, pretty much what Whyte claim.


 
Posted : 17/05/2009 7:59 am
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So how may people only go for a crap when they need to lose weight then?


 
Posted : 17/05/2009 8:01 am
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I used to be an obsessive weight weenie, but after building up a Pace RC300 to 19.5lb (gears and sus fork) and learning that super light bikes ride terribly I don't fret about weights as much.

Around 21 lb is the lightest I'd go on a hardtail, 23-24 lb on a full sus.
Other people may see it differently, but I'd rather have a bike that I am happy riding 100% of the time, rather than something so light its skittish and scary on the downhills. Takes the fun out of riding.


 
Posted : 17/05/2009 8:15 am
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but I'd rather have a bike that I am happy riding 100% of the time, rather than something so light its skittish and scary on the downhills. Takes the fun out of riding.

Too true!


 
Posted : 17/05/2009 8:33 am
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I weighed my 5 Spot at 33 pounds, Coil shock but a fairly middling build weight-wise. I think I read a near-identical build in a mag described as coming in at 29 pounds. Maybe their frame was full of helium.


 
Posted : 17/05/2009 8:39 am
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I'll let you know in a couple of weeks when my S-Works Enduro SL is built.

Shouldn't be far from standard weight, although I will have XT chainset instead of XTR and Hope Tech M4 brakes rather than Avid Ultimates, so I reckon it may be half a pound heavier.

I'm aiming for 28-29lbs for a 6" bike, but will see - if it tips over 30lbs I'll be a tad annoyed.


 
Posted : 17/05/2009 9:16 am
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My flux came in at about 24 i seem to remember - with pedals and lock on grips too! tis quite nice build thou. I was pleased with that!


 
Posted : 17/05/2009 9:21 am
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if it tips over 30lbs I'll be a tad annoyed

You'll get over it.


 
Posted : 17/05/2009 10:05 am
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Njee, your right to a point about the spreadsheet but it isn't going to be out by much more than 50g.

For example building my rear wheel, I had weighed each of the 12 individual parts, down to stan's yellow tape. Once it was built the total weight was within 2g of what the total should have been on paper.

I was susprised myself by the total, but going by your logic, there isn't anything super light its just a lot of light parts 🙂


 
Posted : 17/05/2009 10:09 am
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Plus, the weights are measured un-fitted. Steerer needs cutting, chain will be shorter, hoses will be cut...

Thats another 40-80g in my favour!


 
Posted : 17/05/2009 10:21 am
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Yes I must admit I thought about it afterwards and it's actually quite plausible, I was thinking 17 lbs, whereas it's actually nearly 18, stick some pedals on there and even XTR will take it to 18.5lbs, which makes it 2.5lbs heavier than my Epic, but that has 4" each end and gears!

It's clearly horses for courses on the whole lightweight thing. I like having a really light bike for XC racing, yes it's skittish on the descents, but you expect it, and it makes up for it by being crazy fast on the climbs.

I don't see the point in people who build up Ibis Mojos to 21lbs and stuff, you're just limiting the potential of the bike by fitting fragile kit.


 
Posted : 17/05/2009 10:22 am
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Have you accounted for grease and stuff? 😉


 
Posted : 17/05/2009 10:23 am
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Lads oh lads, even as a qualified accountant I find the idea of a spreadsheet for bike weight slightly disturbing.


 
Posted : 17/05/2009 10:37 am
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I must say even I've never gone that far!


 
Posted : 17/05/2009 10:38 am
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🙂 and the 5 zip ties for brake hoses. The Simple isn't really designed to be built superlight, but it's the nicest singlespeed frame I've ridden and I have got a SS genesis for the burlier days.

To be fair some manufacturers are correct with their weights;

Stan's olympics are 343/344g
King Hubs are as they list
Sram chain is 319g as claimed

SLR Saddle, it even has 135g written in silver writing across the leather, its 149g ffs!

It's more the complete bike weights which are somewhat optimistic.

With pedals and latex, if mine's under 19lbs I'll be happy. It's still only 1/2lb heavier than the Spesh Allez E5 SLX road bike I had a few years ago, and that felt floaty.


 
Posted : 17/05/2009 10:42 am
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I have a cannondale rush size large (carbon one)
and that is easily under 20lbs ....... :D,thats with mavic special wheels
though..


 
Posted : 17/05/2009 10:50 am
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It's an odd business.

I sometimes feel my Inbred [i]should[/i] be light because it isn't 'core. Sadly, it doesn't seem to work like that. 🙂


 
Posted : 17/05/2009 10:51 am
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When bikes get to light the parts cost a kings ransome they become unreliable and need constant repairing which costs more money its a balance between weight reliability and fitness


 
Posted : 17/05/2009 11:12 am
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MSC were at Dalby last week, they told me their £5200 hardtail there was '18.1lbs, just been weighed out the back' I took it and stuck it on my scales... 20.3lbs, I want their scales, then my Epic would be under 19!

Not sure what is worse to be honest, having a spreadsheet with weights, or taking a set of scales to a XC race and weighing random bikes.


 
Posted : 17/05/2009 5:02 pm
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I took my workstand to a race, which has scales in it. I was intrigued, as a £5200 hardtail really SHOULD be very very light. It wasn't. I'm half thinking of buying one, so these things are good to know.


 
Posted : 17/05/2009 6:37 pm
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It's been said already, but a lot of bike manufacturers are outright liars when it comes to weights.

This is true. I've seen bikes weighed, on proper accurate scales, and seen up to 3lb over manufacturer's claimed weights. Lots of manufacturers leave pedals out of the equation, and compressed air is heavier than a flat innertube! And weights are often calculated by adding up components 'claimed' weights, which, again, are often over exaggerated. And things like cables can be omitted, as can grips.

And individuals often use very inaccurate scales, which under weigh things.

Thing is, getting too obsessive about weights of things is not healthy. Just get out and ride the thing...


 
Posted : 17/05/2009 6:51 pm
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Unpainted small frames is quite common as well, makes a difference.


 
Posted : 17/05/2009 6:56 pm
 PJay
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My 20" 853 Inbred built up a lot lighter than my DN6 one (which I've never weighed). I was chuffed. One day I decided to weight it and it turned out to be over 29lbs! It's a great ride and although it's heavy (by the standards of bikes on here) I'd like to make a few comments. I've got a nice plush Bel Air saddle, I could lose a bit of weight there, but what's the point if, as a recreational rider, I ended up with a painful rear and didn't enjoy my riding as much, the same goes for the big, fat ODI Rouge lockon grips. I've got steel middle and inner chainrings, I could lose weight there but I'm not getting the chainsuck I was with aluminium ones. At 15 stone I went for 719 rims over 717s, that's extra weight too but I've yet to need to have them trued let alone broken one. My tyres could be lighter, but I'm not having to stop every few miles to sort out punctures. Oh, and I could change those great big heavy disc brakes for Vs! And a steel frame too? well really!

Of course, you don't want a bike to be heavier than it needs too be, but people's needs differ. As someone who rides for fun, I value comfort and durability as well as good value (I don't have a lot of spare money) and when losing weight compromises these things I do have to think about it.


 
Posted : 17/05/2009 7:12 pm