Are there any aftermarket fenders that only span from the chainstay to the seatstay? I don't trust the rigidity of full-length mudguards beyond the chainstay and this is only to minimize contamination towards my front derailleur. I would prefer it if there's no cutting/bodging involved.

  • 1
    There are plenty of two-piece rear units - you could fit only the front piece which normally runs from the chainstay up to the brake bridge - would that suit your need ?
    – Criggie
    May 30, 2020 at 12:59
  • @Criggie That might just be doable for me with a slight, clean bodge (mainly drilling a hole so that it also fixes to the chainstay fender mount bosses). I do wish there are actual units designed for the purpose I'm looking for, but I guess I'll have to make do with that. May 30, 2020 at 13:15

1 Answer 1


Not a great answer, but I did something like this on my old MTB.

enter image description here

This isn't a good photo because the mudguard broke (for other reasons) and when I repaired it, the linkages no longer move the same way.

However you can see that the original seatpost clamp was used around the seat tube (in yellow)

At the bottom, the tip is wedged into the triangle space formed by the kickstand bracket and the two chainstays. It is not going anywhere.

On the plus side, these mudguards are cheap and common. But they tend to get brittle and snap.

There's plenty of clearance, its a bit harder to see in the first photo so here's a downward shot.

enter image description here

Why did I do this? Back then I had a rear parcel rack fitted, which was lined with a sheet of stiff plastic that extended backward quite a distance. The only part not covered was where the canti brakes are, and the rack was lower enough so this wasn't a problem.

  • does the chain ever hit the mudguard? Jun 1, 2020 at 10:53
  • @GregoryLeo Nope - that one narrows down toward the tip. You could conceivably make something from plastic to do a similar job.
    – Criggie
    Jun 1, 2020 at 12:01

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