-
Whatever pleases you, I am not here to win an argument, you are the one who needs to prove he is right at all times. I am just advising you that you might have a problem you want to deal with. In doing so, I would also encourage you to refrain from using the same language in the future when you catch a piece of misinformation from my words. It doesn't say anything good about you, whether you care or not.
Give it up, you were wrong, you got called for it. Have the good grace to accept it and move on rather than going all passive-aggressive wetlip with added pomposity.
-
ACTUAL WHEELBUILDING QUESTION!
Weinmann DHL80 to Shimano Saint HB-M810.
Shimano's hub dimensions sheet give me these dimensions:
61.6mm diameter
25.2mm centre-left
36.4mm centre-rightFor the rim, ERD seems about 535mm which agrees with google. The spoke holes (36h) measure about 7mm each way, ish.
For 12mm nipples, I get near enough 253mm both sides.
SPA Cycles have silver Sapim Race, £20.20 for 36 inc postage.
Cyclebasket only go down to 256mm.
Anywhere else I should look? I'd prefer black.
-
front wheel...24h Novatec track...laced to a FLO30 rim.
Are cheaper aero-spokes worth it? or should I stay corner-cutting-free in terms of spoke quality when doing this kind of build.
I'm 85kg and the wheel will roll on lovely asphalt mostly.
A 24H front wheel with those service conditions isn't pushing the envelope, the Pillar or CN copies of CX-Rays/Aerolites will probably be fine.
The 24H Novatecs are slotted for wider bladed spokes, so those are an option if you're looking for more stiffness. I'm building mine with DT New Aero, which is like going from Revs to Comps in terms of stiffness, around 40% more cross sectional area in the middle of the spokes, but I'm 20% heavier than you and even then I'm pretty sure 2.3×0.9 spokes would be good enough, I'm just being a tart because I like the look of the wider spokes.
-
The DT New Aero is 3.3mm wide, but the spoke hole diameter on Novatec track hub seems to be only 2.6 mm.
Which Novatec? The Ones I've been getting from On-One have been factory keyholed.
Anyway, it's moot because you don't need the wide spokes and DT New Aeros are nearly as expensive as Sapim CX-Rays.
-
I used the dimensions from the database http://leonard.io/edd/
Novatec BDW Track, front
Left flange ø: 62 mm
Right flange ø: 62 mm
Centre to left flange: 35 mm
Centre to right flange: 35 mm
Spoke hole ø: 2.6 mmFactory keyhole does indeed pop into the screen when zooming on the On-One ones.
Edit: Looks like I got the hubs mixed up - the On-One resembles more the Novatec Track SF A265SBT.
Edit2: The flange diameter specs from the database on Novatec Track SF A265SBT, doesn't match the on-ones specs - time to order those On-Ones and look for keyholes and diameter specs, all good :] -
Here's one for the aerogeeks:
Is a New Aero more aero than an Aerolite? On the plus side, it has a 3:1 fineness ratio, vs. 2.5:1 for the Aerolite. On the minus side, it has 22% more frontal area.
This graph suggests to me that maybe even that small increase in fineness ratio (decrease in thickness:chord on the graph) might be sufficient to overcome the extra area
Source: http://www.dtic.mil/get-tr-doc/pdf?Location=U2&doc=GetTRDoc.pdf&AD=ADA395503
Note that both elliptical spokes lie between the 25% thickness at CD≈1e-1 and the 50% thickness with Cd≈1e-0.5, compared with the circular cylinder with Cd≈1e0
It would take proper testing in a built up wheel to provide the definitive answer, but it's food for thought. If the skinny spokes could be coined down to 3.0×0.7, that would be even better - light spokes with a thickness:chord <0.25
1 Attachment
-
-
I used the dimensions from the database http://leonard.io/edd/
Novatec BDW Track, front
Left flange ø: 62 mm
Right flange ø: 62 mm
Centre to left flange: 35 mm
Centre to right flange: 35 mm
Spoke hole ø: 2.6 mmFactory keyhole does indeed pop into the screen when zooming on the On-One ones.
Edit: Looks like I got the hubs mixed up - the On-One resembles more the Novatec Track SF A265SBT.
On-One hubs are Novatec A165SBT (f) and A166SBT (r)
-
I'm building mine with DT New Aero, which is like going from Revs to Comps in terms of stiffness,
I am led to belive it's like going from Revs. to Champion in terms of stiffness.
The New Aero are essentially bladed DT Champion
The Aerolite are bladed DT Revs
The Aerocomp are bladed DT CompOf those, only the New Aero require slotted hubs
-
Where did you get that tension meter?
Actually made by a guy called Filip I found on another forum when looking for a decent tensiometer at a good price.
For the money there really isn't anything even approaching the quality, precision, reliability that I've managed to find (and I looked realllly hard too!), plus it's based on the design which Jobst Brandt shared in his wheel building book, so it's proven design and maths backed up with Filips engineering.
It's easy to use and comes with different dial rings for different spokes, which he calibrates for every spoke size individually for every tensiometer he makes, but if you'd prefer it, he will do you a tension chart instead.
He also has a choice of bearing types for the sliding piece, regular cartridge bearings or THK sliding bearings (high end ultra slick precision), and a choice of dials from relatively cheap (still good german shock proof models though), to very high end TESA Digito (sooo good digital) dials, which would be perfect for frequent and pro wheel builders (I want one bad).
Couldn't recommend him enough really, very good communication, detailed descriptions and pics to show you how it's going, and he gives you plenty of options, and his prices are very good, give him email at - kralyevski@gmail.com
If you do, let him know I pointed you in the right direction. ;P
-
my gf brought me one of these, which I've been fairly impressed with so far. bonus points from me for looking like something Brunel would build
-
my gf brought me one of these, which I've been fairly impressed with so far. bonus points from me for looking like something Brunel would build
True, if you open it a bit more and hand a rope between the slots, it looks like the Clifton suspension Bridge :-)
-
I am led to belive it's like going from Revs. to Champion in terms of stiffness.
The New Aero are essentially bladed DT Champion
The Aerolite are bladed DT Revs
The Aerocomp are bladed DT CompDo you even maths?
Once you find out how to calculate the area of an ellipse, it will become clearer to you what the relationship is between the various aero spokes and their circular analogues. -
Do you even maths?
Once you find out how to calculate the area of an ellipse, it will become clearer to you what the relationship is between the various aero spokes and their circular analogues.Are you familiar with density? If it was a squashed DT Comp it would weigh like a DT comp, no?
-
Love it... it's a pretty petty discussion, but the DT website clearly says "DT new Aero is a straight gauge spoke"
Assuming it was a perfect ellipse, its cross sectional area would be 2.85 cm2 half the way between a DT comp (2.54 cm2) and a DT Champ (3.14cm2)... most likely it's not a perfect ellipse and the more it resemble a rectangle, the more the area approximates that of a DT Champ. -
Can tester's reply and all further posts on the subject please include that quoted .gif?
If you found an animated version of this one wouldn't even be better? (FGTH Two Tribes, that is). I am Brezhnev, never liked that Reagan boy
Brommers
Emyr
Regal
j_k
gbj_tester
Thuekr
ugosantalucia
AngelD
fredtc
snottyotter
miro_o-
Post a reply
About
Wheelbuilding / Wheel Building / Wheel build help
Posted by
Is that the most circumlocutory offer of outside in the history of the internet?
