3x wheel build too much?
Moderator: robbosmans
Have a Frankenstein wheel build in the works and am wondering whether 3x is too much of an angle for the build, any experience from the experts appreciated?
Don't ask why i'm building such a bizarro build, it'll serve a few purposes
Brakes: Disc
Rims: 38mm 571 ERD
Spokes: 32/32h 2.2 Bladed
Front hub: Dynamo Disc; PCD 58/52; C-C 25/25
Rear hub: PowerTap Pro Disc; PCD 74/70; C-C 31.3/18.5
Thanks
Don't ask why i'm building such a bizarro build, it'll serve a few purposes
Brakes: Disc
Rims: 38mm 571 ERD
Spokes: 32/32h 2.2 Bladed
Front hub: Dynamo Disc; PCD 58/52; C-C 25/25
Rear hub: PowerTap Pro Disc; PCD 74/70; C-C 31.3/18.5
Thanks
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More importantly, you have disc brakes here. I wouldn't risk anything less than 3X. You certainly can't go radial on front or either side of the rear, and 1X will almost certainly break under braking strain as well.
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Manninen,
Although that 2x build will work, the forces applied from flange to spoke under power or under braking (if using discs) will be far from ideal.
Ideally, the spoke elbow will be 90 degress away from the rim nipple. ie. if the spoke joins the rim at 12 o'clock, the elbow should be at 9 o'clock
or 3 o'clock (depending on whether it is a trailing or leading spoke).
This is not the case with your wheel. I hope that makes sense.
Although that 2x build will work, the forces applied from flange to spoke under power or under braking (if using discs) will be far from ideal.
Ideally, the spoke elbow will be 90 degress away from the rim nipple. ie. if the spoke joins the rim at 12 o'clock, the elbow should be at 9 o'clock
or 3 o'clock (depending on whether it is a trailing or leading spoke).
This is not the case with your wheel. I hope that makes sense.
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I'm building something similar. h+son FF rims on Alfine hubs with discs. I went with 3x and would not risk using anything less, even though the hub flanges are pretty hefty.
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Any differences in spoke angle at the rims will be so miniscule that it's irrelevant. It's the angle that the spoke leaves the hub that's relevant.
Specialized sells their mountain bike disc wheels with a radial DS on the front. Even heard of people using 1x on the NDS front. I've also used plenty of wheels laced 2x front and rear on my mountain bike.
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Specialised will be using a hub designed for radial lacing also there rims will have thick spoke nipple beds as braking forces are large. Also just because Specialiased are selling radial laced disc brake wheels does not make it a good idea. 3x lacing works well for a 32 spoke wheel why bother doing anything else. Other lacing patterns are only done for looks or to be different no real practical reason and the result is an inferior wheel. It may function well for a long time bt still is not as good as it could be.
I was just saying that it could be done, and has been done with success. I have personally used notubes mountain bike rims laced radially, And there are disc hubs that are meant for radial lacing up front (extralite). That said, from the sound of this wheel build, 3x sounds perfect, but for a more weight oriented wheel build, other lacing patterns can be used. Can't forget what site we're on!
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Thing is, the weight saving of 2x over 3x is almost nothing (if comparing the same number of spokes). You might save 5-10g per wheel.
May as well just use the design that'll give you a better wheel.
May as well just use the design that'll give you a better wheel.