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Weight weeny droppe...
 

[Closed] Weight weeny dropper seat question

 j2b2
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[#10403262]

Hi,
Roughly how much should the cabling from a dropper seat post weigh (including an aluminium switch but excluding the seat post itself)?
Thanks!


 
Posted : 22/12/2018 6:35 pm
 geex
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inner, outer cable and ferrules for a large frame with wide bars will be slightly under 50g
If by aluminium switch you mean remote, they're roughly 50g too. (but obviously depends on particular model and mounting option.


 
Posted : 22/12/2018 6:43 pm
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Why are you asking? If you are considering having a non-resident dropper to save weight, don't. Having a remote dropper that lets you fine tune the height constantly makes far more difference to the feel and speed of your bike than 100g weight saving ever will. Trust me, I'm a weight weenie and a former XC dropper sceptic.


 
Posted : 22/12/2018 7:21 pm
 j2b2
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Thanks so much. I bought a new bike and I am trying to work out why it weighs a bit more than I expected..
..how about the weight difference between tubeless 29" wheels and non-tubeless 29" wheels?


 
Posted : 22/12/2018 7:23 pm
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Are we taking grams or pounds difference? If it’s the former I’d really not worry about it.


 
Posted : 22/12/2018 7:26 pm
 geex
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Tubeless depends on the tyres and tubes used.
generally an OEM butyl 29er tube is going to weigh somewhere between 200-300g
tubeless sealant and will be around 120g per tyre with the rim strip around 30g depeending on what it is. On top of that tubeless ready tyres can be a little heavier (maybe 80g) than a folding non tubeless tyre.

molgrips is a dropper noob still in the honeymoon period. There are avantages and disadvantages of rigid and dropper posts. For clipped in XC a decent rider shouldn't need a dropper, you can jump, hop, ride steep stuff, manual fine with your saddle at full height. It is however a lot more fun messing about on bikes without your seat at full extension all the time. But if that's no your idea of fun it's irrelivent


 
Posted : 22/12/2018 7:40 pm
 geex
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One reason all bikes weigh heavier than their stated weights is manufacturers weigh size small or meduim and without pedals


 
Posted : 22/12/2018 7:42 pm
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For clipped in XC a decent rider shouldn’t need a dropper, you can jump, hop, ride steep stuff, manual fine with your saddle at full height.

Of course I know this, I've been riding 25 years with my seat up. But it's much more fun and quite a bit quicker to have it lower.


 
Posted : 22/12/2018 9:27 pm
 geex
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Yeah, I've been riding around with fully slammed saddles for 4 decades but riding fully extended saddle height for longer climbs, road and XC type riding. I'm not sure what point you're making I hadn't already covered.

Maybe you didn't understand what i meant. When clipped in you have more saddle clearance with pedals level as you don't need to squat to preload in order to lift the wheels and don't need to lower your centre of gravity or rotate your ankles to increase pedal grip. I run a variety of 150mm, 170mm and 250mm droppers between my bikes with flats and use all of that space to move around the bike whereas any more than about 100mm drop feels too much most of the time if I'm clipped in.

Not everyone is going to feel a dropped saddle is more fun.


 
Posted : 22/12/2018 10:40 pm
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Posted : 23/12/2018 6:23 am
 j2b2
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Thanks everyone. I ride clipped but usually feel more comfortable descending fast with a dropped seat. I definitely enjoy droppers and have one one my Giant FS, and a super cheap hand operated one on my Decathlon XC which is really useful if sometimes impractical 🙂

Basically I bought a new XC bike, but before I ordered it I weighed a similar one in the LBS and also asked the manufacturer for its specs - about 11kg without pedals in my size. I then asked the shop to install a Kind Shock E30i dropper post (100 mm/540g). I also added a carbon seat, which I thought would balance out the added weight a little.. but When I went to the shop to collect the bike, the LBS weighed it and said it was about 750g more than I expected. I am trying to work out what I missed in my calculations 🙁


 
Posted : 23/12/2018 6:39 am
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Bikes never weigh published weights, tyres can make a huge difference ive noticed riding wider maxxis tyres 2.3/2.35 weigh so much more than a conti or Schwalbe 2.25.
Was the weight correct for the girth of your dropper I’ve noticed weights given are always for the skinniest and shortest tube variant.

Was the Drivetrain the same on the other bike, a lower model cassette can easily weigh 100 grams more..

I’ve been a weight weenie in the past but usually to allow for the essentials wider tyres and a dropper, although I never really used my dropper until last year,
Moving around the bike, hips over the back wheel and weighting, since my reverb broke I’ve really noticed the loss. But as others have said it depends on what u ride


 
Posted : 23/12/2018 6:54 am
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I bet the manufacturer just gave you the quoted weight instead if the weight for your size.

Pedals are around 2-400g depending on what you choose.

How comparable was the one you weighed in the shop?


 
Posted : 23/12/2018 9:35 am