Chinertown
Chinese Carbon MTB => 29er => Topic started by: bangacan on July 01, 2025, 02:01:51 PM
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I just got my fm121 frame from tantan. It looks pretty good at first glance. Bb shell is not perfect but I did expect that.
What seems weird is the swing arm seems to have a built in spring somewhere that makes it hard to move up and down. All the pictures I’ve seen on many sites show the frame having a plastic connector where the shock goes. This didn’t have that. I haven’t gotten too far in the build to see if this tension is easily overcome. My daughter has a different model from tantan and it shipped with one of those plastic connectors that I assume prevents the swing arm from slamming into the main triangle with out the shock installed.
Normal?
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I would check the torque on the linkage bolts. Maybe they are too tight.
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Problem might be these bearings. Already corroded and gunky
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Yikes