Edge 1.25 build

Discuss light weight issues concerning road bikes & parts.
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53x12
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by 53x12

I am looking at build up a set of Edge 1.25's as a set of climbing wheels. I am curious what build you guys would recommend; 24/28 or 28/28 for a guy that weight 170-175lbs (77-79kg). Is the 28/28 overkill? I would like to keep the wheels under ~950g if possible.
"Marginal gains are the only gains when all that's left to gain is in the margins."

by Weenie


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Stats
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by Stats

less spokes = less weight :thumbup:

for climbing wheels i would say 24/28 would be more than fine. Front wheels are usually stiffer because the bracing angles are wider, even with less spokes and radial lacing.

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53x12
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by 53x12

Stats wrote:less spokes = less weight :thumbup:

for climbing wheels i would say 24/28 would be more than fine. Front wheels are usually stiffer because the bracing angles are wider, even with less spokes and radial lacing.


Yes that is very true. :) But I also need dependability and durability. Would a 20/24 be pushing it too much with either a DT or ExtraLite hubs?
"Marginal gains are the only gains when all that's left to gain is in the margins."

tranzformer
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by tranzformer

53x12 wrote:
Stats wrote:less spokes = less weight :thumbup:

for climbing wheels i would say 24/28 would be more than fine. Front wheels are usually stiffer because the bracing angles are wider, even with less spokes and radial lacing.


Yes that is very true. :) But I also need dependability and durability. Would a 20/24 be pushing it too much with either a DT or ExtraLite hubs?


You could maybe get away with a 20/24, but why risk it? Might as well go with a 24/28 and know you have a solid light weight setup. What would the weight difference be? 40g?

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ultimobici
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by ultimobici

53x12 wrote:
Stats wrote:less spokes = less weight :thumbup:

for climbing wheels i would say 24/28 would be more than fine. Front wheels are usually stiffer because the bracing angles are wider, even with less spokes and radial lacing.


Yes that is very true. :) But I also need dependability and durability. Would a 20/24 be pushing it too much with either a DT or ExtraLite hubs?
Well Extralite already do it.
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For €2000!

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legs 11
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by legs 11

Why would you ever build a pair of wheels 28/28h ??????
:shock:
I just don't get it?
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Alex_ucsb
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by Alex_ucsb

to be honest, for riding and road racing, 20/24 would be adequate in my opinion for your weight. 24/28 would be better for crits and overall stiffness. 28/32 spoke sets are a bit much, but it's your prerogative.

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53x12
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by 53x12

legs 11 wrote:Why would you ever build a pair of wheels 28/28h ??????
:shock:
I just don't get it?


Yes 28/28 might be a bit overkill, but I do want to have a solid wheel. That is why 24/28 might be the best compromise for my size.


Alex_ucsb wrote:to be honest, for riding and road racing, 20/24 would be adequate in my opinion for your weight. 24/28 would be better for crits and overall stiffness. 28/32 spoke sets are a bit much, but it's your prerogative.


Yeah I am sure I could get away with a 20/24, but is it worth sacrificing stiffness and durability for a few grams? Maybe for some it is. But I think the 24/28 would give me better confidence, especially when descending at Mach-looney. I guess I am kinda in the inbetween range where I could get away with either one. Rough estimate, with the 8 extra spokes and nipple am I looking at what:

Spokes: Sapim CX/Sapim Laser @ 4.4g/each X 8 extra spokes= 35.2 extra for 24/28 vs 20/24
Nipples: Hexagonal nipple @ 0.3g/each X 8 extra= 2.4g extra for 24/28 vs 20/24

So roughly +/- 37-38g heavier for the 24/28 build vs. the 20/24. Is that about right, assuming the hubs weigh the same?
"Marginal gains are the only gains when all that's left to gain is in the margins."

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Stats
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by Stats

I would have thought 20/24 would be absolutely fine plus they would look better and be even lighter...

Some factory wheels run 16 spokes in the front with no weight limit... i know the spokes you are looking at are a lighter gauge than those, so 20/24 should be fine. I'm sure some wheel builders will chime in or hopefully PM you to help you out with your choice and potential build and the difficulties or benefits of certain choices... You're not a sumo so i would think that would be fine.

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dadoflam08
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by dadoflam08

53x12 wrote:
So roughly +/- 37-38g heavier for the 24/28 build vs. the 20/24. Is that about right, assuming the hubs weigh the same?


Yes - rough and ready guide is 5g/spoke
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ergott
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by ergott

24/28.

-Eric

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Zen Cyclery
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by Zen Cyclery

My suggestion would be.

Edge 25 24/28
Sapim Cxray spokes
Extralite Ultra SL hubset
weight 854 grams

The SL hubs are very light while still having large axels as well as large bearings.
I would shy away from 20/24 because even though you will loose about 38 grams you will also loose a significant amount of lateral rigidity.

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HammerTime2
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by HammerTime2

But what would the aero difference be between 20/24 and 24/28?

tranzformer
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by tranzformer

Zen Cyclery wrote:My suggestion would be.

Edge 25 24/28
Sapim Cxray spokes
Extralite Ultra SL hubset
weight 854 grams

The SL hubs are very light while still having large axels as well as large bearings.
I would shy away from 20/24 because even though you will loose about 38 grams you will also loose a significant amount of lateral rigidity.



That looks like a nice build. Solid. Light. Not so sure about the durability of the Extralite hubs. Do you have experience?

OP, have you thought about the Alchemy hubs? I heard the rear hub should be released some time this fall. (fingers crossed) Alchemy hubs would give you a nice weight, very good durability, and a strong build. Might be worth considering? Just another idea to put into your head.

by Weenie


tranzformer
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by tranzformer

HammerTime2 wrote:But what would the aero difference be between 20/24 and 24/28?


Since the OP is going with the 1.25's rather than the 1.45's, I am assuming aero isn't that high on his list. 1.25's are built for their lighweight. If there was an difference in aero between the 20/24 and 24/28, it would probably be minimal if it could even be registered.

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