AnnaMossity

Yeah, I need recommendations for a new rear rim. I want to build up a 4x on straight 14 g spokes or 2mm whatever,

I had a Velocity Dyad on there before and was running a 700x35 Schwalbe marathon XR at 85psi (biggest tire I can fit in there) I do paved roads and logging roads but the high pressure necessary to avoid direct rim impacts also split the wheel apart when I hit a large object on tour recently so I want something tougher this time. I don't care if the rim weighs 5 lbs if it'll stand up to serious abuse.

Fire away!

Booger1

Mavic A719,heavy and strong and expensive.Comes in 40 holes too.Not going to get much stronger than that.Dyads rank right up there with the best of them also.

positron

if you're splitting Dyad rims, your wheel was built poorly. They are very strong.

LeeG

You can break anything. I dented a Dyad rim on a mtn bike with 2.125 tires. Are you expecting the wheels to never need replacing in rough use?

Mavic 719 is available in 40hole. If thats not strong enough you'll have to resign your self to thinking of wheels as being like other parts what wear out and need replacing like brake shoes and tires.

AnnaMossity

I expect rims to survive a slow speed encounter with a curb. How am I supposed to trust a bike on a long tour if it can't handle a parking lot?

Answer: I don't and probably won't tour again 'cept for short trips.

clasher

Who built the wheels? 'cos unless there was some sort of manufacturing defect in the rim, they shouldn't be splitting apart in the circumstances you describe.

Consider buying a wheel or a set from an experienced, reputable wheelbuilder rather than just some LBS dude that does a few a month. The strength of the wheel comes from spoke tension, not just the rims... without the correct tensioning and stress-relieving, the wheel will be weak. If you're getting it built up, I'd recommend dropping coin on triple butted spokes as well since you want something bomb-proof.

Anyway, that's my two cents... no point in giving up because of a bad wheel.

Also, I'm not sure what your logging roads are like but I'd be riding wider tires on the logging roads in northern Ontario I've been down in ATVs and such, so maybe you'll need to find wider tires... the mavic a719 rim will take tires up to 47mm wide.

positron

Im sorry, I didn't mean to sound like I was attacking you or anything. I'm just saying that the dyad is basically the strongest 700c rim available, aside from the mavic A719- they are probably pretty comparable in terms of stregth... I prefer the dyad, because I prefer non eyeletted rims... I have used Dyad for AGGRESSIVE mtb, with multiple foot drops to flat landing etc, and they hold up fine. If one failed from a curb, its a fluke, not the rule...

I guess Im saying it will be tough to find anything much stronger...

ljg

I've got a set of 40H Alesa Sputnik rims. They're heavy and tough!!
I think Alesa has been absorbed into Rigida now so they're now called Rigida Sputnik rims.

https://www.rigida.com/en/products/mtb/rims-3/sputnik

Sixty Fiver

+1 to the 719 being one of the strongest rims available.... I have used these for mtb wheels that see extreme use and for tourers who want a wheel that can stand up to pretty much anything they might encounter.

They have shown themselves to be virtually bombproof.

Deanster04

There is another rim a DT Swiss TK 7.1 for touring. It is much like the Mavic A719 in that it allows for a wider tire. I built up a set of 36H on a set of Centaur hubs with 14/15 spokes and they are working very well.

AnnaMossity

So maybe I'd be better off getting a bike with 26" wheels and a 48 spoke rear and fatty tires.

FWIW the bloke that built my wheels is 268 lbs and has lots of touring experience and mountainbiking exp too. The spoke tension was high but I think maybe due to the relatively high tire pressure and low profile tire it's plausible that the collision with the curb created enough outward force on the rim to split it. 300 lbs over a curb even at slow speeds has got to be tough on a rim. It probably wouldn't have happened with lower tire pressure and fatter tires. Just my guess.

I can't, for the life of me, figure out how people find touring to be stress-relieving, I'm almost as stressed now as I was when I left. Where are the long routes that don't see any cars? Is that even possible?

NoReg

I think there is more of a fluke factor here than anything else. There is always some proportion of a product run that will fail unexpectedly, and some circumstance that will be damaging way out of proportion to it's apparent force.

I don't weigh 265 anymore but I did and hit a rock hard enough to blow the casing on a Schwalbe marathon. I suffered no damage to the Alex rim. I had 35 mm tires and 85 pounds in the tire. I think lighter pressures run an excessive chance of the impact making it to the rim and either failing the tire, or in the extreme, the rim. I just bought some Dyad 40 holers so I hope they work out. Lacing them with butted wheelsmith spokes, and White hubs. Anyone know the number I should look for on the spoke gage?