Lightweight alloy wheelset build 1200gm>

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Boston
Posts: 8
Joined: Mon Aug 03, 2015 9:38 am

by Boston

Looking to build alloy wheelset sub 1200gm.

Anyone know any lighweight rims,hubs,spokes and nipples.

cheers

Marin
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Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

Tubular or clincher?

The latter at least is going to be a compromise, how much do you weigh?

BhSimon
Posts: 20
Joined: Thu Sep 03, 2015 6:48 am

by BhSimon

Assuming clincher:

Rims: Stans Alpha 340 @ 385 g x 2 = 770 g
Extralite CyberFront SL 16H = 48 g
Extralite CyberRear SL 20H = 134 g
Pillar X-TRA Lite Ti @ 3.0 g x 36 = 108 g
Nipples @ 0.4 g x 36 = 14.4 g
Total = 1075 g

This is the lightest configuration I’ve ever devised, but I’m not a wheel builder so I have no idea about the restrictions associated with such a low spoke count using titanium spokes. The spokes are expensive.

Sapim Super Spokes are an alternative. They are expensive too, though, and weigh 1 g extra per spoke, raising the total to 1110 g. They are stronger, though, I believe, so they might offset the disadvantages of the low spoke count.

Changing to more reasonably-priced CX-Ray will greatly reduce the cost and they only weigh an additional 0.6 g per spoke, raising the total weight to 1132 g.

Stans Alpha 340 are tubeless rims which have been reported to have quirks with certain standard clincher tyres. A substitute are the XR200 at a weight penalty of 5 g per rim, raising the weight of each build by 10 g total.

These are just specifications I’ve made up when dreaming up my own lightweight wheelsets but I know nothing about wheel building so advice from anybody else will have far more value.

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rmerka
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Joined: Wed Mar 06, 2013 4:23 pm
Location: Austin, TX

by rmerka

If you give yourself another 100g and say sub 1300g, many more less flimsy rim options are available to you as well as higher spoke counts which you would want to consider if you weigh more than 130lbs

This should probably be in "Everything Wheels"

Marin
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Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

I have a 1219g 20/24 carbon clincher wheelset from Farsports that I don't hesitate to use on bad tarmac or even gravel, at 77kg rider weight. It even has heavier spokes on the rear DS, so could come very close to 1200 for a lighter rider.

Complete cost was about what you'd pay for the Extralite hubs.

Why go alu?

kulivontot
Posts: 1170
Joined: Sun May 16, 2010 7:28 pm

by kulivontot

Sub 1200g with alloy pretty much requires a super lightweight rims like stan's 340 or kinlin's. I'm not aware of any other sub-400g alloy clincher rims. But these are pretty unpopular around here in favor of the wider tubeless options like Pacenti's. American Classic also makes a couple sub-1200 pre-built wheels, but they're pretty pricey.

sanrensho
Posts: 410
Joined: Tue Aug 02, 2011 5:54 pm

by sanrensho

^^^

Other sub-400 rims are American Classic 2218 (375g claimed) and Ryde Pulse Sprint (395g claimed).

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F45
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Joined: Wed Jun 08, 2011 6:08 am

by F45

I would start with a Tune 70/170. Starbike has the best prices on those.

Lasers for spokes, 20/24

Alpha 340 or XR200.

What do you mass?

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madcow
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by madcow

I'm certainly a big fan of doing things light and have built some of the lightest wheels ever. However I generally don't recommend that someone starts a build be it wheels or a bike with a specific weight in mind. I think it's best to build the wheels based on your size and your use of the wheels. Then in the end you'll end up with a wheel that is exactly what you need and weighs as little as possible within your needs.

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TwiggyTN
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Joined: Wed Dec 29, 2010 2:16 am

by TwiggyTN

Of course you're right MC, that's the right way to look at it but here, well you know...

Sent from my GT-P5113 using Tapatalk

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prendrefeu
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by prendrefeu

Lightweight does not make alloy wheels.
Exp001 || Other projects in the works.

xena
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by xena

I ride, kinlin xr200 ,dati sl hubs and sapim super spokes 20 x24 ,,1180grms . I am around 80 kgms right now and these have been fine for quite a while . They needed a true after a pot hole but so does any wheel if you hit it hard enough.

I have a set of stans , AC hubs and revo spokes 1182 grms, again very good no issues. I'm going to change the spokes to the sapim super spokes and drop around 30 grms or so.

I prefer the kinlin rims , very easy to mount tyres [ Veloflex masters] .
Xena a demi god among the digital demimonde that is WW community

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F45
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by F45

I like that dati sl/super spoke combo. I have some extra xr200 rims.....

Although I'm using dati hubs with an xr270 wheelset and I can make the rear hub feel strange on hard efforts.

xena
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by xena

F45 wrote:I like that dati sl/super spoke combo. I have some extra xr200 rims.....

Although I'm using dati hubs with an xr270 wheelset and I can make the rear hub feel strange on hard efforts.


The Dati's I got on ebay, something like this http://www.ebay.co.uk/itm/NEW-Black-257 ... 43d05c9e55

They roll very nice . nice clicking sound when freewheeling and no issues stomping on the power.

quite tempted to try these for a build . although every time I have had carbon hubs I have cracked the rear hubs 3 times on mass Production wheels .

http://www.ebay.co.uk/itm/Fast-Delivery ... 28010cbe00
Xena a demi god among the digital demimonde that is WW community

http://i.imgur.com/hL5v3ai.jpg

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Multebear
Posts: 981
Joined: Sat May 02, 2015 10:11 pm

by Multebear

Boston wrote:Looking to build alloy wheelset sub 1200gm.

Anyone know any lighweight rims,hubs,spokes and nipples.

cheers


Impossible to answer, if you're not going to share some info about yourself. Most importantly your weight. If you're 120 kg, then I would say, it can't be done.

Next thing, that made me curious is: Apparently you're looking for advice and rims, hubs, spokes and even nipples. Is that because you don't know a single lightweight component? And more importantly: How did you end up with the number 1.200? Why not 1.100 or 1.300? Is there some kind of logic or magic behind the number 1.200?

And what is your intended use? Are you going to climb La Marmotte? Or are these for commuting, solo training, group rides, sportives or Cat 1 races?

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