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why does everyone point out the velocity deep-v and not the dyad?

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why does everyone point out the velocity deep-v and not the dyad?

Old 09-30-06, 06:06 PM
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why does everyone point out the velocity deep-v and not the dyad?

just out of curiosity. when someone is looking for a hefty rim (especially in the singlespeed forum) they point out the deep-v without thinking about it. why not the dyad? the dyad is actually a touring rim so I would think that its even beefier than the deep-v?

inquiring minds want to know!
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Old 09-30-06, 07:18 PM
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https://www.velocitywheels.com/default.asp?contentID=566

Dyad says 22 mm high, Velocity Deep V is 30 mm. Dyad 480 grams,Deep V 520. I yust he Deep Vat 220-230 lbsa nd they work great. Have 'em on my tandem too. Deep V comes in 48 spoke for tandems[IMG][/IMG]

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Old 09-30-06, 07:21 PM
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Both rims have a good reputation and I think both are equally strong. However, the Dyad is wider than the Deep-V. The Deep-V is therefore better suited for performance setups where one wants a tire no wider than 25 or 28 mm. Not sure if one is stronger than the other.

I must add that I had a very bad experience with 2 Velocity Dyads on my tandem. These 40-spoke rims lasted a mere 4000 - 5000 km before I had to change them. I had to bend out the side of the rear rim at about 2500 km, and when I replaced them, they were both out of round by 5 - 15 mm and a few spokes were starting to pull through the rim. I have done the normal on-street and on-road riding, which means I have seen my share of potholes.

When I replaced the rims, I installed Mavic A-719 because I have the same on the rear wheel of my single and it stayed true and round even though I often travel loaded and with a trailercycle. Same potholes by the way.
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Old 09-30-06, 07:21 PM
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Close up!

[IMG][/IMG]
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Old 09-30-06, 07:23 PM
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Deep V on tandem. No way is the dyad that beefy.



[IMG][/IMG]
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Old 10-01-06, 03:32 AM
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I build a lot of wheels with Mavic CXP33's for Clydesdale customers on road bikes. They don't come back with problems. I ride them myself and as a pro wheelbuilder I can use any I want!!! 36 hole with DT Competition spokes will do for riders up to 275lb. Couple these with Vredestein Fortezza tri-comp at 140lb(they will take 145lb to prevent pinch flats) pressure and you will fly. Do get a good track pump though!!
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Old 10-01-06, 04:40 AM
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Originally Posted by wrench
I build a lot of wheels with Mavic CXP33's for Clydesdale customers on road bikes. They don't come back with problems. I ride them myself and as a pro wheelbuilder I can use any I want!!! 36 hole with DT Competition spokes will do for riders up to 275lb. Couple these with Vredestein Fortezza tri-comp at 140lb(they will take 145lb to prevent pinch flats) pressure and you will fly. Do get a good track pump though!!
+1....

I weigh around 250 and haven been using 32 spoke CXP33 rims for 4 years.
I use them touring and commuting and I do NOT baby my wheels. Two minor points... 32 spokes is plenty, even for most Clydesdales. I wouldn't mind
having 36 spokes on the rear wheel, but I've only needed to have the wheels trued twice in 4 years. The other thing is that I like the standard Fortezza a bit better than the TriComps, but... the tire I personally use is the 27c Rivendell RuffyTuffy. It's a great tire for a Clydesdale.
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Old 10-01-06, 06:31 AM
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IMHO, Mavic CXP-33s blow chunks. Mine almost killed me - still sore from June accident when my CXP-33 detonated to pieces without warning. You want to use them? Go ahead.
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Old 10-01-06, 12:29 PM
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ALSO
Fixie folks are faddish, it's true, don't deny it. Just like liesure suits and mullets. And Deep-Vs come in alot of fancy colors, just like liesure suits and mullets. Which makes them more hip.
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Old 10-01-06, 01:31 PM
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Originally Posted by CrosseyedCrickt
ALSO
Fixie folks are faddish, it's true, don't deny it. Just like liesure suits and mullets. And Deep-Vs come in alot of fancy colors, just like liesure suits and mullets. Which makes them more hip.
That's funny but true.
Another observation about the deep-v's is that when the brakes are applied they seem to be really noisey. One of our club members uses these and swears by them, but when its wet and gritty on the trail and he applies his brakes - everybody can hear it.
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Old 10-02-06, 11:22 AM
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I liek the deep Vs thoufh, and will prbably get them when I build up this schwinn crisscut I'll be working on in the spring...
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Old 10-02-06, 11:34 AM
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Originally Posted by CrosseyedCrickt
ALSO
Fixie folks are faddish, it's true, don't deny it. Just like liesure suits and mullets. And Deep-Vs come in alot of fancy colors, just like liesure suits and mullets. Which makes them more hip.
That is a big part of the Deep V's appeal. Soooo many cool colours to chose when putting together a custom ride. As much as I try not to be a slave to fashion, that's what drew me to them in the first place. Then I read good reviews about their strength and decided that's the way to go.
Now I just need to find a leisure suit to match 'em, and grow a mullet.
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Old 10-02-06, 11:49 AM
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Originally Posted by FarHorizon
IMHO, Mavic CXP-33s blow chunks. Mine almost killed me - still sore from June accident when my CXP-33 detonated to pieces without warning. You want to use them? Go ahead.
You keep harpin this yet you have presented nothing as to the actual method of failure. All we've had is a lot of keyboard speculator ramblin.

How many CXP33 are out there in service and how many failures have we heard of?

Did your wheel fail in a most spectacular manner? Yes.

Does this imply a critical flaw with the CXP33 rim? No.
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Old 10-03-06, 09:01 PM
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Going off topic here but there is a moral to this story:

I had problems with Mavics - I was about 210lbs and I switched to a MTB. Put Mavic XC517's (if I remember right) on and got about 200 miles on em and the freakn rear rim split about 25% of the way around - blew out. I had about one minute of warning (that sort of "what the heck - this doesn't feel right) kind of thing. I was doing about 20 mph in the dead of winter, 17 degrees F. Loud crack and the rear wheel locks up. I "deftly came to a stop" (picture Pee Wee Herman going over the handlebars - "I ment to do that").

I was running 2" tires and had them inflated to 60 psi. No specs were provided with the rims but about that time the world-wide web was cranking up so I got on Mavic's website and found a nice note stating that the max tire pressure for a 2" tire was about 45 psi (if I remember right).

The moral: According to Mavic bigger tires don't protect your rims - they eat them - they put large stress on the sides of the rims and increase warping of the sides. Makes sense to me now.

The front rim? I cut the tire pressure to 40 psi and it lasted about 1000 miles before the sidewall warp was so bad the breaking pulsed and drove me nuts. Replaced em. Live and learn.

Some rims suck. Some don't. You just have to try em and find out.
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Old 10-05-06, 07:42 AM
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All rims wear away if you have rim brakes, more so in winter on cruddy rides. There is a trade off between rim thickness and weight and some rims have wear indicators to tell you when to replace then. As theywear they go concave and eventually split, sometimes with warning crackles first (rear wheel) and sometimes with a spectacular blowout as the tube exits through the split, i've seen it happen. Mavics are no worse than any other manufacturer. You could try not using your brakes of you could have a rim rebuild when the rim gets significantly concave. If in doubt, get a local friendly wheelbuilder like me to give your wheels a check over. I've run Mavic CXP 33's for years at 140psi without a problem but then I do check on the sidewall wear every now and again like any rider should. You can soon feel the wear with your finger or you could put a ruler across the braking surface and see if there is any gap behind it that may indicate severe wear.
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Old 10-06-06, 08:19 PM
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>All rims wear away if you have rim brakes...

I agree. I suspect a clyde needs to worry a bit more about issues like this since my 240lbs stopping from 20 mph takes about 2x the breaking energy as 140 lbs doing 20 mph.
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Old 10-06-06, 11:02 PM
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I saw something on the SS/FG forum about Velocity getting sued by another rim manufacturer over patent infringement. Does anyone know if there's truth to the rumour?
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Old 10-08-06, 02:46 PM
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Originally Posted by dobber
You keep harpin this yet you have presented nothing as to the actual method of failure. All we've had is a lot of keyboard speculator ramblin. How many CXP33 are out there in service and how many failures have we heard of? Did your wheel fail in a most spectacular manner? Yes. Does this imply a critical flaw with the CXP33 rim? No.
Older CXP33's no problem. New CXP33's - more than one bike shop I've talked to has quit carrying them. Does this mean the rim is flawed? No. Does it mean that Mavic may be having quality control problems with their current CXP33 production? Yes.
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