1. Bamboo Series
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97mm chipping?

Discussion in 'Bamboo GTX' started by Yanzo, Jul 29, 2017.

  1. Yanzo

    Yanzo Member

    Did about 18km on the 97mm evolve wheels. No slides, just the usual carving. Checked my board today and noticed the wheel was chipping

    This was on smooth asphalt too, probably a small rock I ran over.

    I've asked to ship them back to be replaced by the 97mm abec so I'll keep you posted

    20170729_170454.jpg
     
  2. wiztecy

    wiztecy Member

    Contact Evolve and ask for a new one.
     
  3. OP
    Yanzo

    Yanzo Member

    They said they wouldn't replace them if I sent them back. The best they could do was give me a $50 credit if I sent them back. Guess I'll just keep riding them lol might order the 97mm abec anyway
     
  4. wiztecy

    wiztecy Member

    Wow, that's bad customer service. The reason why they're chunking off is they're making the wheel in the softer durameter. When they go softer they're not as durable. My friend who makes wheels had the same issue and had to go up a little harder in the durameter. Its like riding on thin ice for defects if the recipe and molding isn't on 100%. My suggestion in the future is to replace them with ABEC clones that you can get for $28 with spacers and bearings or go for the pricier ABECs in a 78a rating. I had 76a's and they also chunked. My 78a's and clones never blew chunks. If you run clones you need to modify the rear pulley so they fit the spokes. I have a set I modified that I'm going to put up on ebay here soon since I sent my board back for a refund.
     
    • Like Like x 1
  5. E-Boarding

    E-Boarding Member

  6. wiztecy

    wiztecy Member

    Typically softer Durameter has issues chunking. Even the new MetroBoard wheels do, which were 76a. MetroBoard got the feedback from the customers about the issue and bumped up the durameter to 77a and also changed the formula. Hopefully that addresses their issue. Was rather a pretty quick response, those wheels haven't been on the market too long. Downside is the new formula is a black color rather than the transparent gummy bear red.
     
  7. OP
    Yanzo

    Yanzo Member

    Thanks for the feedback. I emailed them after hearing they'd replace them with the same wheels. All I have to do is send back the current ones. Hopefully the new ones are much better quality and don't chip. Customer service is reasonable.

    If the softer they are the more likely to chip, does that mean abec are the best quality wheels? I don't think I've seen any cracked abec wheels and their 97's go down to 75a. Might stick to quality parts from now on.
     
    Last edited: Aug 3, 2017
  8. OP
    Yanzo

    Yanzo Member

    20170803_162922.jpg 20170803_162938.jpg 20170803_163009.jpg About to return the wheel and I've noticed these little holes. Is this poor quality or normal? Do abec 97mm have these holes?
     
    Last edited: Aug 3, 2017
  9. fbhb

    fbhb Member

    I have upgraded my original Evolve 83's to Abec 97's & can confirm that there is still the possibility of seeing small holes like that even with the Abec's. However, the urethane quality used by Abec for their Flywheels is far superior & I have not had any issues with the Abec's at all, but did start to get some chunking happening with one of my Evolve 83's. Flywheels are a class wheel and deserve all of the praise they regularly receive. You won't regret swapping to Abec's if that's what you decide to do!
     
    • Like Like x 1
  10. wiztecy

    wiztecy Member

    Yes, ABEC 75a durameter will chunk and have chunked on me. I have not had chunking on the 78a. Also no chunking on my ABEC clones. Metroboard is trying to address this issue of chunking wheels by working alongside with ABEC 11, he's changed the formula and increased the durameter from 76a to 77a. The Metroboard wheels are "Made in the USA" because they're made in the southern California ABEC 11 factory. Not sure where Evolve wheels are made, most likely China. Metroboard trying to find the right combination between keeping the wheel soft which gives a nicer ride and stickier turns but also making them durable. That's what I like about MetroBoard, they're right on it addressing any issues that come up in the field and looking for a long term, not short term fix to address it and make the customer happy.

    Nice to hear Evolve changed out your wheels.
     
    • Like Like x 1
  11. OP
    Yanzo

    Yanzo Member

    Jay Boston mentioned that evolve were also working with abec on wheels due to wheel chipping. Hopefully the rumours are true and they deliver. Evolve isn't the type to hype up an unfinished product like some eboard companies lol they get it done and hit us with the element of surprise which I like. Why hype up an unfinished product...
     
  12. wiztecy

    wiztecy Member

    .
    LOL. What? The entire line of Evolve boards are an "unfinished product". You may have been missing all the threads on remote dropouts, bad batteries, bad motors, etc that Evolve has been pawning off to customers not to mention a dangerous buggy produc. Honestly, the fist Evolve 2-in-1 appeared to be the best one in terms of reliability. But when the GT came out they've been pushing out the unfinished product out including the Evolve One, and soon to tell GTX. Its the same damn motor, so be ready to see more motor bearing noises and failures. The remote drop-out solution was not a fix but a patch with the 'safe mode' and disabling reverse. Odd, they create a new product but patched the issues. Why not redesign and make it a "finished" product? Ohh I know, less cost for them and larger profit margins to pad their pockets. Evolve wheels have been chunking ever since they've been selling them in the 82mm. They just went to 97mm and started pawning that crap off to the customers again. I wouldn't hold my breath to have Evolve fix the wheel chunking problem. I also don't know if they're using ABEC 11 as the supplier or some Chinese company now. Metroboard will be selling the improved wheel this coming week, which have been confirmed by Metroboard to be manufactured by ABEC 11.

    Here's a great write-up from a guy who owned a GT and understands the technology. These boards are total junk in quality. I pasted it since he also said its an "unfinished" product. I 100% agree with this statement:

    "hope everyone who reads this understands that this board is an unfinished product and should be a prototype on developer's bench, and not even for testing phase yet."

    Evolve GT | Problems & Solutions
    ....

    I decided to open it up and found an unfinished BLDC controller, with 1 Buck converter around LM2596HVS (which is piece by piece copied from the aliexpress product) to step down from 36V to 12 V, which is further routed to the input of an 78L05 linear regulator, for the comparator, microcontroller, and PWM drivers 5V, and then another linear regulator for the NRF transceiver 3.3V.

    Gosh, this is a hell of an energy waste for a battery powered application.

    Second point would be the motor's control which is purely based on HALL sensors, and nothing to do with FOC in my oppinion, the feedback from the phases of the motor does not reach the input of the microcontroller to read the Back EMF, the voltage divider from these traces are missing....

    So now I am just an unhappyowner of an Evolve GT Carbon street board which sometimes works, but I can not trust it...

    I will however be glad to put my oscilloscope on the UART lines between the BMS and control board to try understanding the protocol, and planing to reuse the whole thing except the motor controller for my own motor controller, and maybe after that, a better battery pack, and a better remote.

    I hope everyone who reads this understands that this board is an unfinished product and should be a prototype on developer's bench, and not even for testing phase yet.

    This product does not worth more than 800USD IMHO, but is sold for the ridiculous price of 2000USD, at least in Europe.

    Not to mention that on my board, the DC Bus capacitors had desoldered terminals on two of them caused of bad cold soldering process!!!!!!!!!

    Shame Evolve, Shame!!!!!!
     
    Last edited: Aug 5, 2017
  13. OP
    Yanzo

    Yanzo Member

    So evolve are only replacing the 1 wheel that chipped lol I thought they were going to replace all 4
     
  14. Deco-Stop

    Deco-Stop Member

    My 97s are doing the same. Sux, I really like the looks and ride of these wheels.
     
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