What makes a wheel strong?

alfablue
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Postby alfablue » Sun Aug 26, 2007 21:59 pm

It was built with DT Stainless double butted black

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nicklouse
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Postby nicklouse » Mon Aug 27, 2007 01:34 am

rogerwp wrote:What type of spokes was the wheel built with?


topic here http://www.bikeradar.com/forums/viewtop ... highlight=
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Pippen33
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Postby Pippen33 » Tue Aug 28, 2007 22:48 pm

I've never had a spoke fail but I have aluminium nipples which fail all the time, each one replaced with brass. My old credit agreement says that if I receive 'unsatisfactory services' I can sue both the supplier and the credit company. Leisure Lakes & Blackhorse Finance. They should be glad I'm not a whiner, or American.
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BoredHousewife
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Postby BoredHousewife » Wed Sep 12, 2007 14:20 pm

Here's a question, please don't go too tech on me for my ignorance.

I have a hope big'un built onto d521 ceramic with what appears to be just normal spokes (it was on a bike I bought 2nd hand so have no idea which spokes). The wheel is not sitting straight in my forks (off to the right quite drastically but straight?).

Without a tension gauge how can I tell if its tight enough/not too tight when I straighten it? Is there a certain amount of movement or bend or something I can use as a guide? Oh, I need to get it sorted by friday and can't afford to allow my LBS the honour.

Thanks again guys

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baccaman21
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Postby baccaman21 » Tue Oct 09, 2007 19:03 pm

I'm assuming this is the correct place to post a spokey type question... so here goes.

The other day whilst fettling I noticed two spokes on my rear wheel were like lose as a lose thing... I'm talking flopping, no tension whatsoever...

Naturally I tightened them up to a point I can only hope is the correct kind of tension.

Question is, what would cause such a loosening of spoke... and particularly just two 4 apart...?

They're DT's on 717's - XT hubs...
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Schmako
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Postby Schmako » Wed Oct 10, 2007 11:01 am

On my Orange I had the mech hanger bend 90 degrees out from the bike and the mech ended up in the wheel. That bent two spokes pretty badly and snapped the mech in half! Got the two spokes that are bent tightened and it has been okay over a good few runs at Innerleithen. Not sure if this will effect the overall strength of the wheel?

the4thdeadmonk
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Postby the4thdeadmonk » Mon Dec 03, 2007 19:31 pm

Back to the even tension thing, when i'm tensioning wheels, i notice that the two sets of spokes on one side of the wheel (i.e. the inside spokes and the outside spokes) show slightly different tensions (i think due to the slightly different path they take to the rim).

Even once i've got the wheel up tight they still seem to show this. In order to get even tensions would you then tension the looser set (i.e. the inside set) slightly more than the tighter set?

Or should i just tension all the spokes more and hope that the higher overall tension causes the two sets to even out?

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supersonic
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Postby supersonic » Mon Dec 03, 2007 20:55 pm

If the wheels are dished, which is almost always (ie rear wheel because of the cassette, and disc, and front because of the dish), one side will be under higher tension than the other.

the4thdeadmonk
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Postby the4thdeadmonk » Mon Dec 03, 2007 21:09 pm

Ahh, yes, but i mean the two pairs of spokes coming from one flange, as in, the inside spokes coming from the drive side, and the outside spokes coming from the drive side. The inside spokes (i think) always seem to be a slightly higher tension (which is uniform for all 16) and the outside spokes always seem to be a slightly lower tension (again, uniform).

I think i can see why (the inside ones effectively bend twice, once when leaving the inside of the flange, and again when they cross the outside spoke) but wasn't sure if i should be aiming to get both inside and outside spokes even.

shifter58
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Postby shifter58 » Mon Feb 25, 2008 22:47 pm

The wheel builder is a good start,then the hub,spokes and rims.My wheels are kk disk hubs maviv x 819 disc rims and double butted spokes with hope skewers built by leisure lakes.Are they worth the cost ?.Most definatly,have never needed truing are strong as sh**t and the engagement from chris king hubs unsurpassed :wink: .PS the rims make a huge difference as well.Been using them about 2 years.

rogerwp
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Postby rogerwp » Fri Mar 07, 2008 20:11 pm

shifter58 wrote:The wheel builder is a good start...

...

built by leisure lakes.


But surely Leisure Lakes isn't a wheelbuilder. You need to pass on the name of the wheelbuilder. Shops don't build wheels, real people do.

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Boffington
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Postby Boffington » Mon Apr 14, 2008 17:15 pm

just a pretty simple question question,

do spokes permanently stretch in the first few days after building the wheel, losing their original tension. do wheel builders slightly over tension and then bring the tension back down to the right level to deal with this?
I took falling off bikes...and turned it into an art!

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nicklouse
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Postby nicklouse » Mon Apr 14, 2008 17:27 pm

simple answer NO.
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Boffington
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Postby Boffington » Mon Apr 14, 2008 18:48 pm

lol cool oh yeah one more question

if the weak spot on poorly built wheels with normal spokes is the elbow where is it on straight pull spokes?
I took falling off bikes...and turned it into an art!

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Jimbob_no5
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Postby Jimbob_no5 » Tue Apr 15, 2008 11:30 am

is there any noticable difference between twin cross and triple crossing??
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supersonic
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Postby supersonic » Wed Apr 16, 2008 01:06 am

Triple is widely regarded as offering the best overall build for strength, weight and reliabiluty.

roger-wp
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Postby roger-wp » Thu Apr 17, 2008 16:06 pm

Boffington wrote:if the weak spot on poorly built wheels with normal spokes is the elbow where is it on straight pull spokes?


The weak spot on poorly built wheels is the wheelbuilder.

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Boffington
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Postby Boffington » Fri Apr 18, 2008 13:27 pm

thats a really unhelpful answer to a reasonable question
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kevin44
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Postby kevin44 » Fri Apr 18, 2008 18:54 pm

I reckon that different tensions in spokes pointing different directions on the same side, as described by thefourthdeadmonk above, can only happen if the wheel is held in that state by different tensions in the opposite direction on the other side of the wheel, or by significantly and possively excessively higher tensions on the other side.
I like this thread.

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SDK2007
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Postby SDK2007 » Tue May 13, 2008 09:27 am

This happened on my first ride on my new Specialized Enduro SL Pro Carbon on Saturday whilst riding general XC at Cannock Chase.

I wasn't impressed.

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