Gears Weight

[Jezston]

Quick one for those who know:

What is the kind of weight range for a conventional rear hub + cassette + derailleur + rear brake + longer chain?

Reason I ask, is I have had a colleague being so audacious to mock my bicycle with it's 1.3kg Sturmey Archer 3-speed hub gear with coaster brake, saying such a set up is heavy.


I'd have thought all the other gubbins on a standard derailleur geared bike my hub replaces would weigh more than that - albeit with more gears (that I don't need).

 

[MacB]

Depends on the kit in use but bog standard, middle of the road stuff is claimed to be no more than about 1-200g lighter than going with a Rohloff/alfine at about 1.8kg. A 3 speed hub is likely to result in no weight gain, or a weight improvement, over anything but a ££££s drivetrain.

 

[threebikesmcginty]

Reason I ask, is I have had a colleague being so audacious to mock my bicycle with it's 1.3kg Sturmey Archer 3-speed hub gear with coaster brake, saying such a set up is heavy.

Couldn't you just tell him to f**k off and mind his own business!

 

[tyred]

Couldn't you just tell him to f**k off and mind his own business!

Precisely.

And just point out that by the time he has cleaned and dried off the drive train of his derailleur geared bike after a wet winter ride, you've had time to wash, change your clothes and have your tea.

 

[Jezston]

Couldn't you just tell him to f**k off and mind his own business!

Oh it's all affable banter, I just need to hit him hard with The Facts so I can feel all smug an ting.

 

[RecordAceFromNew]

He is right.

Lightish rear hub/cassette/mech/brake/extra links are about 350g/250g/170g/50g.

The next thing he will raise is the relative efficiency of derailleur vs SA 3sp hub gears.

Talk weather instead.

 

[threebikesmcginty]

Oh it's all affable banter, I just need to hit him hard with The Facts so I can feel all smug an ting.

I know, I was only joshing like! Not suggesting that you're a portly chap or anything but if he's got a few pounds on you can't you suggest that his waistline has more of an overall effect on the rider/bike combined weight than a few grams of Sturmey Archer wonderfulness.

 

[fossyant]

Don't forget, the weight isn't that much a problem being at the hub. If it's rim/tyre weight then that makes a difference. Was going to add about any additional lard that might be being carried - you can drop that in if you are lighter.

 

[TheDoctor]

Just tell him it's 235g lighter. 87% of statistics are made up anyway.

 

[MacB]

if you really want to work it out you can get a lot of weight detail here:-

http://weightweenies.starbike.com/listings.php

so find out what kit he has and then add it up, but included everything, for example freehub weights don't normally include the QR skewer whereas some hub gear weights do include the nutted axle. If your hub is 1.3kg and it replaces:-

freehub - 165g would be super light, 250 g Dura Ace level and 300g mid range
QR skewer - 28g superlight and 60g about standard
rear brake - 100g light and 170g standard
cassette - 110g light, Dura Ace 150-200g depending on cogs and about 250g for Ultegra
longer chain - 240g light to 300g standard so say you're saving about 30g here
rear derailleur - 150g light to 200g standard
front derailleur - 60g light to 90g standard
front shifter - allow about 100g saving
front cables - allow 50g savings
one or two chainrings - allow an 80g saving

So that gives you superlight coming in around the 1.1kg mark and standard(the good side of standard, ie Ultegra or better) comes in around 1.45kg

 

[threebikesmcginty]

so find out what kit he has and then add it up, but included everything, for example freehub weights don't normally include the QR skewer whereas some hub gear weights do include the nutted axle. If your hub is 1.3kg and it replaces:-

freehub - 165g would be super light, 250 g Dura Ace level and 300g mid range
QR skewer - 28g superlight and 60g about standard
rear brake - 100g light and 170g standard
cassette - 110g light, Dura Ace 150-200g depending on cogs and about 250g for Ultegra
longer chain - 240g light to 300g standard so say you're saving about 30g here
rear derailleur - 150g light to 200g standard
front derailleur - 60g light to 90g standard
front shifter - allow about 100g saving
front cables - allow 50g savings
one or two chainrings - allow an 80g saving

So that gives you superlight coming in around the 1.1kg mark and standard(the good side of standard, ie Ultegra or better) comes in around 1.45kg

Be easier just to tell him to f**k off!

 

[MacB]

Be easier just to tell him to f**k off!

Easier yes but more satsifying? well that depends on how you deliver the information. For maximum effect I might suggest beating him to the floor, ripping his arm off and then punctuation each line of the info with a slap from the 'wet end'.

 

[Jezston]

Considering his bike has Deore I expect it would be somewhat heavier than Ultegra!

Not to mention his silly knobbly cyclocross tyres.

Hangon, he's put Marathon+ on it. His TYRES weigh more than my hub!

 

[threebikesmcginty]

Easier yes but more satsifying? well that depends on how you deliver the information. For maximum effect I might suggest beating him to the floor, ripping his arm off and then punctuation each line of the info with a slap from the 'wet end'.

That sounds cruel and heartless - how about beating him with a Sturmey Archer hub instead?

Is *thwack* that *thwack* heavy *thwack* enough *thwack* for *thwack* you? *thwack* *





*Please note that I am not seriously suggesting that this is an idea that should be put into practice.

Wouldn't want to damage a perfectly good SA hub!

 

[2Loose]

Deore Mech, SRAM 850 cassette, rear Tiagra caliper, Deore hub & skewer = 1.16Kg-ish according to the anoraks on weight weenies.

So barely lighter...and yes, a pair of 700c Marathon+ would definitely weigh more than your hub ...probably both hubs!