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1x11 cassette weigh...
 

[Closed] 1x11 cassette weighs as much as the rest of my bike.

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Evening all,

Just finishing off my new build.and have gone with an xt 11-46t cassette... is it just me or does thus monstrosity weigh so much it totally negates any weight saving of losing a 2x set up?

And it's all unsprung rotating mass too.

Someone remind me why I didn't go for a 2x10 set up?


 
Posted : 10/10/2016 7:48 pm
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Someone remind me why I didn't go for a 2x10 set up?

Because you would be so uncool!!

And it's all unsprung rotating mass too.

Which will matter when your on top of the world cup rankings? You are a world renowned racer that [s]needs to take a shit[/s]needs to save every gram and not some middle aged fat bloke to which it will make naff all difference aren't you?


 
Posted : 10/10/2016 7:50 pm
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Should've gone sram


 
Posted : 10/10/2016 7:50 pm
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Someone remind me why I didn't go for a 2x10 set up?

Fashion victim?


 
Posted : 10/10/2016 7:50 pm
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And because it's an ugly, uneccessary mess?


 
Posted : 10/10/2016 7:51 pm
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Shimano cassettes are a bit weighty but they seem to last well. I very much doubt my SRAM eagle cassette will last as long even though it's the best part of 100g + lighter. I've learned over the years that weight isn't everything, thankfully my days of 400g xc tyres are long gone!!


 
Posted : 10/10/2016 7:52 pm
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The obvious solution is to go cheap with simple 1x10 and an 11-36 cassette! 😉


 
Posted : 10/10/2016 7:53 pm
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SRAN XX1, X01, X1 and GX cassettes are all lighter than XT 11-42, never mind 11-46. Shimano are miles behind with cassettes.


 
Posted : 10/10/2016 8:11 pm
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It’s a trend that’s all. Don’t get me started…..


 
Posted : 10/10/2016 8:15 pm
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The 11-46 is lighter than 11-42 and offers the same range as 10-42 without the inefficient 10T cog.


 
Posted : 10/10/2016 8:15 pm
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XTR 11-36 278g
XX1 10-42 268g

Hmmmmm yes so much heavier....


 
Posted : 10/10/2016 8:17 pm
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Is it too late to switch to an XD driver and Sram GX cassette?


 
Posted : 10/10/2016 8:21 pm
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XTR 11-36 278g
XX1 10-42 268g

Hmmmmm yes so much heavier....

Why are you comparing a 10 speed Shimano cassette with an 11 speed SRAM one?

The 11spd XTR cassette is 330g.

The XT is not far off double the weight of the XX1. That's terrible.


 
Posted : 10/10/2016 8:23 pm
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fr0sty125 - Member
XTR 11-36 278g
XX1 10-42 268g

Hmmmmm yes so much heavier....

Not much of a comparison, that. 11-36 is nowhere close in range.


 
Posted : 10/10/2016 8:29 pm
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It's much less about the weight of the cassette than the combined "moments of inertia" of 11 rotating discs.

In comparison to the combined moments of inertia of an 11-42 cassette there will be a slight increase in the angular mass but there will be significantly less workload required to move this mass than the potential workload needed to climb a steep hill


 
Posted : 10/10/2016 8:29 pm
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XT is between 411g and 435g depending on ratio option so about 160g heavier - double the weight is a slight exaggeration.

It's also less than a 1/3 of the price of a XX1 cassette - it's not really comparing apples with apples is it?

Given that they are wear out parts, and also that people will swap tyres depending on conditions with far greater weight variances, I know which approach makes most sense to me... 😉


 
Posted : 10/10/2016 8:32 pm
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I like to think that before you started you might have thought about

1. What the knew set up might weigh. If you care about that sort of thing

2. had a reason for wanting a 1x set up. Better clearance or maybe suspension performance or just simplicity


 
Posted : 10/10/2016 8:37 pm
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As said... It's barely rotating mass (even though it's rotating). You'd notice it more of it was the tyres or the rims.

And **** me, the price of XX1! No thanks.

And I don't like SRAM drive train stuff.


 
Posted : 10/10/2016 8:38 pm
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V.
V for, er, victory.


 
Posted : 10/10/2016 8:42 pm
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E-thirteen TRS+ FTW - 320g and 9-44t range

[img] ?1458145292[/img]


 
Posted : 10/10/2016 8:47 pm
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Just out of interest checked whats on my rig (mix of SRAM GX/X1 )
The GX XG-1150 FULL PIN™ Cassette is 394g for a 11-42t
The Shimano XT CS-M8000 for the same range is 434g.
There is about £20-40 price difference towards the SRAM. Quite a jump to go to an X1! But at a near 80g loss 😯 lol... getting as bad as the roadies....

Cheers, Steve


 
Posted : 10/10/2016 10:09 pm
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Yeah when are Shimano going to start machining their cassettes a bit lighter, there's loads of metal to go at without making them weak. SRAM machine the shit out of theirs 😆


 
Posted : 10/10/2016 11:58 pm
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To be honest. Having used an m8000 side pull front mech I wonder why I am still using 1x11 on any bikes. The shifting between front rings is incredible.


 
Posted : 11/10/2016 12:26 am
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GX is the solution, only lighter Shimano is XTR and the price is closer to XT. Mine just doubled the life (and is still running fine) of one of the guys I ride regularly with.


 
Posted : 11/10/2016 12:36 am
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Range AND life expanding?


 
Posted : 11/10/2016 7:34 am
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Just have a good dump before you ride


 
Posted : 11/10/2016 7:41 am
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I'm old school - and don't get the 1 x thing ...
But that is fine - if you want to run a more limited range/simpler then that is up to you ... but saving weight is not one of them ...
And I can't see it as being mechanically efficient ... the chain line / drop rate must be an issue ...


 
Posted : 11/10/2016 7:48 am
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To be honest. Having used an m8000 side pull front mech I wonder why I am still using 1x11 on any bikes. The shifting between front rings is incredible.

I would be interested to try one of these. I've moved one back to 1x10, partly to try and save weight and partly because I never had good shifting at the front.

I recently got a new road bike with SRAM rival and the shifting at the front is so smooth. Would be good to try the latest shimano offering, might make me go back to 2 times.


 
Posted : 11/10/2016 8:21 am
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Just have a good dump before you ride

When are people going to stop saying that on every thread about reducing weight.

a) you can have a dump and also have a lighter bike
b) you may not need a dump before the ride and can cause piles by forcing it, and piles must weight something too?


 
Posted : 11/10/2016 8:53 am
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40g is a pretty poor dump anyway! 😉


 
Posted : 11/10/2016 8:56 am
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I have gx on one fser, XT on the other, both 11 speed. I can't tell the difference, as I'm sure most people can't.


 
Posted : 11/10/2016 9:01 am
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Skankin_giant - Member

Just out of interest checked whats on my rig (mix of SRAM GX/X1 )
The GX XG-1150 FULL PIN™ Cassette is 394g for a 11-42t
The Shimano XT CS-M8000 for the same range is 434g.
There is about £20-40 price difference towards the SRAM. Quite a jump to go to an X1!

Best price I can find for the 11-42 XT is £60, £75 for the GX. (also, bear in mind that the XD freehub is generally about 15g lighter too)

You can get an X01 cassette for £150 from Amazon, 260g...


 
Posted : 11/10/2016 9:46 am
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For the record, I [i]always[/i] have a dump before I ride.

And sometimes during as well.


 
Posted : 11/10/2016 9:52 am
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Can anyone tell me supposed weight of the xt 11-46t? I've fitted it now and can't be bothered to remove it to weigh it.

Felt REALLY heavy.


 
Posted : 11/10/2016 9:59 am
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But that is fine - if you want to run a more limited range/simpler then that is up to you ... but saving weight is not one of them ...
And I can't see it as being mechanically efficient ... the chain line / drop rate must be an issue ...

Staple size of one but it works very well for me, range not an issue when you work out there is a point where pedalling down is ineffective compared to good technique and up is nearly the same gear. Average ride is 50m up per Km here.


 
Posted : 11/10/2016 10:04 am
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mikey3 - Member

How weak have someones legs got to be to make them weigh bike parts?

Steve Peat, weak legged loser:

[img] [/img]

(he doesn't weigh his own I'm sure, he has people to weigh things for you)


 
Posted : 11/10/2016 10:05 am
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chakaping - Member

For the record, I always have a dump before I ride.

And sometimes during as well.

What pants for shi77ing without stopping ?


 
Posted : 11/10/2016 10:06 am
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Very good Mike. For the record I can deadlift 200% bodyweight. I don't normally bother at all about weighing parts or even investigating their weight... but this 1 parts is actually noticeable. The back end of the bike feels noticebly heavier as I pick it up.

Can anyone tell me what the 11-46t xt weight. I'm thinking it's north of 500g


 
Posted : 11/10/2016 10:07 am
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Just Google it... 460g. Isn't that a whole 1lb?


 
Posted : 11/10/2016 10:11 am
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Sunrace casssette can be had for less and is lighter than XT. Wear rate seems to be slightly better too.


 
Posted : 11/10/2016 10:15 am
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Just Google it... 460g. Isn't that a whole 1lb?

453.592g is equivalent to 1lb don't you know anything.

someone will be along to say 1lb is 1lb in a minute just to be smartarse pants


 
Posted : 11/10/2016 10:15 am
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I have 1x11 XT on my hardtail, perfect for shortish rides around the local woods (fairly flat). Wouldn't have it on my full suss though. It's about the right tool for the job innit.


 
Posted : 11/10/2016 10:17 am
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For the record I can deadlift 200% bodyweight.

Everyone should please indicate what percentage of their bodyweight they can deadlift, then we can resume the bickering. Thanks


 
Posted : 11/10/2016 10:18 am
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Thinking about this a whole 1lb stuck right out back is not a good thing, I'm thinking about when you want to flick the back end sideways etc.

Might price up a sram driver and cassette. Can I run 11sp sram cassette with shimano 11sp chain mech and shifter?


 
Posted : 11/10/2016 10:23 am
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Weight 90kg. Can deadlift 110kg. However, I have to build up to it for my final set (4/4) and cannot do 10 full reps either...


 
Posted : 11/10/2016 10:25 am
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