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I've got a new fully today, and there is one attachment point on the frame that I cannot identify. Perhaps it's a silly question, but I've given up after 20 minutes of googling :)

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  • Looks like a cable guide, maybe for a dropped seat post cable?
    – Kibbee
    May 9, 2018 at 15:06
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    Here is an image of the mount in use. not sure what the part is. Looks like it may be for a chain guide. Someone with more mountain bike knowledge could fill in the details.
    – Kibbee
    May 9, 2018 at 15:09
  • Its definitely on the Right Hand side of the bike, not centered. Which implies its related to the chain and transmission.
    – Criggie
    May 10, 2018 at 0:19
  • Can we have more information about the bike, model and year?
    – george
    May 10, 2018 at 7:54

1 Answer 1

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It is for mounting a front derailleur. A standard clamp on front derailleur will not fit on that seattube, so an alternative mount point is needed.

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    Are you sure? It seems much too high for that. Looking at my road bike (so, sure, not an MTB), the front derailleur mount is only a couple of centimetres above the height of the big chain-ring, whereas that mount seems to be almost a whole crank-length above the admittedly very small chain ring. May 9, 2018 at 15:42
  • Direct mount mounting point is quite high and the derailleur reaches downward from there. Check for pictures at for example bikeradar.com/mtb/gear/article/…
    – ojs
    May 9, 2018 at 15:49
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    @ojs OK. But meh to bikeradar. They refuse to let me view their site with an ad blocker and, if I take the option of watching one ad to get an hour's ad-free access (which sounds like a great idea), they just waste my time by showing a 30s unskippable ad for... themselves. May 9, 2018 at 17:26
  • Looks like there's already a chain keeper in place, which is likely mounted to the BB.
    – Criggie
    May 10, 2018 at 0:20

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