Very close, but luckily no. Put a crack in the fiberglass shell on the Triple 8. Will be replacing a couple parts and taking a week off. Wheels will stay 
2 Likes
Do you have any photos?? i need it,my bro.
I thought it did in leeās video, didnāt he point out there was urethane all around the core through the little slots?
1 Like
yes, the slots (fairly significant amount of slots) simply cause uneven force reactions between the urethane and the core, whether or not the urethane is all around the outer rim covering / sealing the foamed slots in.
Iām just saying that it might have been better to fully engage the core with urethane, and have the foam bits not ever touching the core itself - that way, you have evenly distributed forces around the core.
My2Cents : there are 2 failure points in this design - the abec core which hasnāt enough structural material to take the heavy load of a 120mm diameter wheel, coupled with the missing structural material on the outer rim of the core, resulting in twisting shearing forces that are generally uneven.
All of which could be fairly well addressed by re-engineering the design, with better material choice as well. But as you can see here, even after a material upgrade and thicker spokes - core failure still resulted.
2 Likes
Ah yeah, I do agree with that, make the foam bits shorter and a circle of urethane around the core
Blockquote
Iām just saying that it might have been better to fully engage the core with urethane, and have the foam bits not ever touching the core itself - that way, you have evenly distributed forces around the core.
yes,them was completely glued togetherļ¼If there is no bonding, silver-like bubbles will appearļ¼
2 Likes
Hide, Iām not sure if you are understanding what Iām trying to say. Iām not referring to the process of how you put the product together.
Iām talking about :
- Design of foam compartments in the urethane - touching the core is no good structurally
- The chosen core - Abec (spokes not working)
Possible Solution :
- Design the foam slots or gaps to not touch the Core.
- Use Kegel Core (no spokes, no problem)
1 Like
Hi,Spade
I donāt think so. kegel core is good core,but ABEC have also reasons for existence.
EVOLVE etcā¦ still used ABEC core wheels,why?
Hide, none of the other wheels that use ABEC cores have large empty (foam considered empty) gaps or slots in their wheels, or carry the weight of 120mm diameter wheels.
I understand you are trying to capture a market by dealing with evolve and abec users - but all of them can easily swap their pulleys to a Kegel type pulley, and you can even make the Kegel Pulleys to sell them, rather than make a special āAbecā pulley that only fits your āAbecā core. No Abec board rider will want to buy another āAbecā core pulley just because their wheel doesnāt fit, but they wonāt mind buying a Kegel core pulley simply because it opens up other possibilities for them for the Kegel core wheel options.
2 Likes
Kegel is now the predominant core with ABEC and clone formulas losing ground. No matter what happens with the current clear core, please consider making a Kegel version so you have both options available.
7 Likes
The majority of cracks that occured in the old black cores seemed to start at the bearing socket and propagate from there. Iām not saying I know what the problem was. However it is possible that the cracks are entirely a function of the bearing socket spliting regardless of how load is transmitted from the wheels to the core.
The supporting evidence for that theory is that a significant number of the old wheels arrived with the bearing sockes already split when the package was opened ā or splitting at the moment that the customers inserted the bearings. Some wheels seemed to arrived disassembled. Others arrived assembled. In both cases there were pictures of cracked bearing sockets from customes who had never ridden on them.
This points to either a problem with the resilience of the plastic or an ovesized bearing or a bearing socket that shrank too much --which would be another plastics problem.
The new discovery cores do not seem to be breaking yet (unless you wash them repeatedly with alcohol, coat them in caustic toothpaste for several days and heat them up unevenly with a polishing dremel).
So iām not trying to shut down the conversation about core redesign. Iām just pitching out the idea that the root cause of cracks seems to have already been identified as a plastic that is no longer used in the new production.
If the new cores start failing under use, then I think it makes alot of sense to discuss redesigning the core for greater strenght. But if the new plastic does not crack, does the core need to be redesigned?
2 Likes
So that does make sense.
1 Like
This 
So sure, that is a good argument for kegel ā if you are saying that the pulleys that are out there donāt fit ABEC without modification and do fit Kegel without modification. I was responding to your proposal that Kegel would solve the splitting problemsāand that the foam pockets needed to be resized.
I donāt understand too.my friend
Abec cores have fitting problems - people have to drill / bore out excess material to fit them.
yes,that is right.may be we will production it in the furture,just maybe
Not sure this assumption is helpful.
5 Likes
Nope, maybe in two years without any more failures 
2 Likes
Well I think if another one breaks then the benefit of the doubt goes out the window. But until then I think it is only fair to acknowledge that the wheel that cracked was subjected to three different unusual chemical/heat treatments. If people are posting that the cores need to be redesigned based on @rafaelinmissouri 's wheel crack, then I think those discussion are potentially confusing.
The beta testing is intended to help @Hide verify that the wheels are safe and durable. One cracked. @Hide pointed out the caked on toothpaste and alcohol washes as being likely to have degraded the plastic.
Those are completely reasonable possibilities and the wheels that have not been chemically challenged have not cracked (so far).
If we keep posting about the one discovery crack without mentioning the context then I think thatās a little unfair.
2 Likes