Chinese Carbon MTB > 29er

258 vs 036

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gmo:
This also applies to 058 (258 newer model of same frame?)...

I'll start with background .. then questions.. opinions appreciated.

I have IP-036 (xmiplay).. within 2 weeks the chainstay cracked.  Should have been covered but they gave me a hard time and was easier and quicker to just pay $115 and have a new one sent.  The new piece was incompatible with the hardware from the original frame (different bushing type  .. c-clip vs push-in).  I had to custom order shim washers in order to make the bike rideable.  XMIPlay was useless in trying to rectify the issue.  While the bike is rideable, there is now an insane amount of play in the rear and I'm looking for a solution, or considering scrapping and purchasing a different frame.  Questions, for those of you in the know, are:

1) Do you think if i take to a LBS, they may be able to fix the problem?
2) xmiplay has IP-FS029 (http://www.xmiplay.com/ProductDetails1724).  Is this the same as FM-258 (http://www.hongfu-bikes.com/html_Products/Mountain_Frame/29ER_Mountain_Frame/2017/0622/482.html) ?
3) Does anyone own any of these bikes and can they comment on the play in the bushings?  Solid?  Or is their play?
4) Has anyone ridden the 036 and the newer style and can comment on the difference?

much thanks!
-gmo

cbenj42:
The fact that Xmiplay wouldn't honor their warranty on a two-week old frame would scare me off from doing any business with them in the future. It also definitely doesn't help their case that they sent you the wrong chainstay. A LBS might be able to create some kind of temporary fix for your pivot play issues, but you might just as well served going to a hardware store and finding some kind of nylon spacer that will press it together.

As for differences between the two frames, the FS029 is not the same as the FM258. The FS029 has a 2.1 degree slacker HTA, a 180mm minimum rear disc brake rotor, shorter reach, and different pivot assemblies, to name a few differences to the FM258. The FS029 is also made by XM Carbonspeed, which has a reputation for good communication and warranty policy. You can find the geometry chart here http://www.xmcarbonspeed.com/Productinfo.asp?f=1527. Both frames have a "flex pivot" where the rear pivot would be on the 036, so they would both be much stiffer.

Although I do not own either of those frames, I have seen a few build threads on the FM258 variation, the FM058. I would go that route given the documentation that exists on the frames. The Hongfu frame seems very solid, and is also being sold by the European companies Megamo and Price. Russian World Cup XC racer Anton Sintsov appears to be racing on an FM258 frame currently, and Swiss rider Martin Fanger just completed the Absa Cape Epic on an FM058.

carbonazza:

--- Quote from: cbenj42 on April 15, 2018, 04:56:16 PM ---...Russian World Cup XC racer Anton Sintsov appears to be racing on an FM258 frame currently, and Swiss rider Martin Fanger just completed the Absa Cape Epic on an FM058.

--- End quote ---
That is interesting.
Have you some pictures of these bikers on the bike ?
I can only find ones with branded bikes.

Stef27:
never buy with xmiplay.........they are liars and scammers

cbenj42:

--- Quote from: carbonazza on April 16, 2018, 07:18:56 AM ---That is interesting.
Have you some pictures of these bikers on the bike ?
I can only find ones with branded bikes.

--- End quote ---

I found some photos of the Price and Megamo branded frames, but on closer inspection, Sintsov might be on a de-labeled Scott Spark.

https://imgur.com/WMY5kXD
https://imgur.com/XCewuFS
https://imgur.com/rxSbNgo
https://imgur.com/kSvOr4u

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