Build recommendations for Powertap GS (and Stan's Alpha 400)

Everything about building wheels, glueing tubs, etc.
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LouisN
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Joined: Mon Feb 19, 2007 3:44 am
Location: Canada

by LouisN

I just finished a Powertap GS build. The NDS tension is very low, so I would recommend go with big spokes and stiff rim at your weight.
Kinlin XR31T is a very good suggestion IMO.

NOTE: I had to cut 2mm off my spokes based on the Powertap chart. And I heard it happened to a few other builders too.
Make shure you get the lenght right.

Louis :)

by Weenie


Johnny Rad
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Joined: Fri Feb 17, 2006 6:22 am
Location: Zion

by Johnny Rad

Who likes / dislikes the idea of Sapim Laser spokes laced to a GS straight pull hub and Reynolds Attack clincher rim? Are they too dainty?

I think an Aero spoke will be more fiddly for truing, so I'm looking at round spokes. Am I mistaken?

I'm 73-74kgs. My Reynolds Attacks use straight pull spokes front and rear, as built by the factory.
Last edited by Johnny Rad on Wed Nov 23, 2016 11:30 pm, edited 1 time in total.

NovemberDave
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Joined: Sat Oct 09, 2010 11:42 am
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by NovemberDave

You'd have a MUCH easier time with bladed spokes. I just flat out refuse to build straight pull hubs with round spokes. Get bladed spokes and a spoke holder and you're way better off. Keeping straight pull round spokes from spinning is a be-yotch, and then compound that with the windup you get with Lasers. Just do blades.

Johnny Rad
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Joined: Fri Feb 17, 2006 6:22 am
Location: Zion

by Johnny Rad

Thx for the advice. Appreciate it.

NovemberDave wrote:You'd have a MUCH easier time with bladed spokes.

kervelo
Posts: 294
Joined: Wed Jan 21, 2009 6:58 am
Location: Finland

by kervelo

ergott wrote:I wouldn't do that build. The hub doesn't build up to a very stiff wheel...


You wrote that the hub does not build up to a very stiff wheel: is this just the Powertap GS rear hub or is it common for all DT Swiss straight pull hubs? I am asking because I have been planning another wheel build, using DT Swiss hubs.

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ergott
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Location: Islip, NY
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by ergott

The DT Swiss rear straight pull hubs also have poor geometry. The fronts are okay and I've used them. I flat out refuse to use the straight pull rears, especially when their flanged counterparts are better (albeit not ideal).

icenutter
Posts: 87
Joined: Thu Sep 29, 2016 12:45 pm
Location: Newcastle, UK

by icenutter

My new wheel arrived and I've been for my first ride! In the end I went for a Kinlin XR31t, 24h offset with Sapim CX-rays. Very happy. I got it made by DCR wheels in the UK, who I can recommend too.

958g with 10 speed spacer, stans tape, and without skewer (sorry about the crap photo).

Thanks everyone for the help.

Image
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JeffChen
Posts: 13
Joined: Fri Dec 06, 2013 2:23 pm

by JeffChen

To Powertap GS hub,any heavy rims is the stone of Sisyphus, you need both eccentric rims and heavy spokes,the best choice is carbon eccentric rims.

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UpFromOne
Posts: 644
Joined: Wed Apr 08, 2009 5:23 am
Location: Olympic Nat'l Park, WA

by UpFromOne

ergott wrote:The DT Swiss rear straight pull hubs also have poor geometry. The fronts are okay and I've used them. I flat out refuse to use the straight pull rears, especially when their flanged counterparts are better (albeit not ideal).


Good insight there. I agree, except that the front straight-pull flanges on the disc variant are less than ideal, being too close together (i.e. short center-to-flange measurements).

UpFromOne
Posts: 644
Joined: Wed Apr 08, 2009 5:23 am
Location: Olympic Nat'l Park, WA

by UpFromOne

LouisN wrote:I just finished a Powertap GS build. The NDS tension is very low, so I would recommend go with big spokes and stiff rim at your weight.
Kinlin XR31T is a very good suggestion IMO.

NOTE: I had to cut 2mm off my spokes based on the Powertap chart. And I heard it happened to a few other builders too.
Make shure you get the lenght right.

Louis :)


Powertap says the spoke lengths should be the same for both sides of this hub. Were they?

kervelo
Posts: 294
Joined: Wed Jan 21, 2009 6:58 am
Location: Finland

by kervelo

I did not have any issues with the spoke lengths. I used the same length both on DS and NDS and the length was calculated using the formula from the spoke length chart. I used Sapim CX Ray spokes.

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LouisN
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Joined: Mon Feb 19, 2007 3:44 am
Location: Canada

by LouisN

UpFromOne wrote:
LouisN wrote:I just finished a Powertap GS build. The NDS tension is very low, so I would recommend go with big spokes and stiff rim at your weight.
Kinlin XR31T is a very good suggestion IMO.

NOTE: I had to cut 2mm off my spokes based on the Powertap chart. And I heard it happened to a few other builders too.
Make shure you get the lenght right.

Louis :)


Powertap says the spoke lengths should be the same for both sides of this hub. Were they?


Yes, they were.

I had to cut all of them.

Louis :)

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