Crest Mk3 Rim Cracks... and now my Flow Mk3

[billygoat0523]

and here we go, washing my bike and i noticed the same... slight cracks appearing (mk3) ..i’m sure TWT is closed for the holiday etc..and i’ll have to go back to my LBS.. can anyone tell me if it’s ‘okay’ to keep riding it? strong enough?

depends how hard you're going to ride it.  my wheel went all wobbly after a few rides.

[Zahir.R]

thanks guys, i think that 1st sign should be abit of a wobble.. i’ll have to ride it just alittle more and see how it goes hope to sort them out soon

[Two Wheels Trading]

and here we go, washing my bike and i noticed the same... slight cracks appearing (mk3) ..i’m sure TWT is closed for the holiday etc..and i’ll have to go back to my LBS.. can anyone tell me if it’s ‘okay’ to keep riding it? strong enough?

 

Hi Zah,

 

Please send me your details, I'm positive that we can get this sorted out for you quickly and painlessly.

 

You can reach me on 041 372 1418 or send your details via email to jonathan@twowheelstrading.co.za 

 

Kind Regards,

Jonathan

[LongDonkey]

Trying to replace my 29er 32 hole MTB rear rim after a rock ding. 2.3 Maxxis tyres right now. Not having much luck finding a rim. I have been offered the Arch rims, but given the comments here, i am very nervous. Spoke tension aside, i am around 95 to 100 kg (boerewors dependent) and so i am reluctant to go with something that has a suspect history. My weight will push the tension well above any spoke tension standard values on a cyclic nature hitting curves, rocky terrain etc.

 

The Lyne 30's do not seem to be an option either as stock = zero (not even sure there is a 32 hole rim).

 

Any suggestions?

Edited January 7, 2019 by LongDonkey

[droo]

WTB Frequency i25 or i29 (the number denotes internal width) are good options. Light(ish) and bombproof.

 

The Lynes are available in 30mm internal in 32 hole.

[Zahir.R]

Huge Kudos   to Jonathan from Two wheel Trading.. replied to my message and in-boxed. As promised he sorted out my warranty claim, with my LBS, effortlessly..

 

Many Thanks Jonathan 

 

Hi Zah,

 

Please send me your details, I'm positive that we can get this sorted out for you quickly and painlessly.

 

You can reach me on 041 372 1418 or send your details via email to jonathan@twowheelstrading.co.za 

 

Kind Regards,

Jonathan

[MudLark]

Sooo... no more posts in the last 2+ years about these rims cracking. Have Stans solved the problem with their changed heat treatment?

Edited April 27, 2021 by MudLark

[RobertWhitehead]

I have a friend who's rear wheel is doing the same. So to answer your question: I doubt they sorted it out ????

[Thug]

I’ve just bought myself a set of Stans Arch Mk3’s, just hope there are no issues with cracking rims.

[MudLark]

I have a friend who's rear wheel is doing the same. So to answer your question: I doubt they sorted it out [emoji16]

Thanks Robert. Better then to buy something else!

[RobertWhitehead]

According to the LBS they've been having issues with the cracking of the rims for the past 5 years. Apparently they are getting fed up having to rebuild the wheels for free, and this is just one shop. I am not a big fan of Stans. Everyone I know whom had a set had issues. And yes there will be folks who have never had any problems with them. Luck of the draw I suppose

[MudLark]

According to the LBS they've been having issues with the cracking of the rims for the past 5 years. Apparently they are getting fed up having to rebuild the wheels for free, and this is just one shop. I am not a big fan of Stans. Everyone I know whom had a set had issues. And yes there will be folks who have never had any problems with them. Luck of the draw I suppose

I suspect that part of the problem is that very few bike shops actually use spoke tension meters when building wheels. I've yet to see a techie using one in my lbs - which is a very busy and reputable shop. These rims are clearly on the engineering margin and while they might crack anyway, not building the wheel absolutely correctly and within spec probably doesn't help either. Whatever the case though, wheel failures can sometimes mean a very long walk home or sometimes a bad crash.

 

Reason I'm asking is I've just stuffed a pair of Bontrager carbon rims (Kovee 23s) and I'm wondering about just fitting aluminium instead. The old debate.

[Quagga]

Sooo... no more posts in the last 2+ years about these rims cracking. Have Stans solved the problem with their changed heat treatment?

Not sorted. I chucked my 3rd replacement rim when Droo opened after lockdown last year for a WTB

[MudLark]

Not sorted. I chucked my 3rd replacement rim when Droo opened after lockdown last year for a WTB

 

How much do you weigh and had they been properly set up with spoke tension measured etc?

[Quagga]

How much do you weigh and had they been properly set up with spoke tension measured etc?

All 3 rims were built by 3 different well knows wheel builders. Spoke tension meter was at least twice.

 

I am 90kg and this was on my hard tail Niner that was used for my 14km each way tar commute.

 

The last rim saw 15km of gravel road in a year according to Strava.

 

These rims all crack every 2nd spoke, drive side rear.

 

Myself and two other friends had the same thing. Rear wheel drive side cracks. The weigh 80kg and 78.

[Skoffel]

Also had it on my previous bike and had to replace my back rim every 18 months due to cracks