Timeline for How to protect rear derailleur while mountain biking?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Apr 4, 2014 at 13:25 | comment | added | Batman | In any case, the whole point of replaceable derailleur hangers is to take some of the damage that would be caused to the frame or derailleur and put it into some cheap replaceable part. And mid-level MTB parts (e.g. Deore) aren't exactly dainty [though obviously, in some crashes, nothing is coming out alive]. | |
| Apr 4, 2014 at 13:23 | comment | added | Batman | There isn't really a point - having the cage increases the likelihood of something getting caught when you're riding off roa, and thanks to torque = arm x force, when you get hit (with an adult rider, kids are light) its always going to put some not nice forces on the frame (which if you're on road, the ground doesn't give and makes it not nice when you end up drive side down). There are products like the Hanger Banger which attach not to the frame but to a QR axle to guard the derailleur, but YMMV - I don't know much about them. | |
| Apr 4, 2014 at 9:00 | comment | added | Chris H | It must be possible to make a cage with some "give" in it - that's pretty solid looking alloy in the photo - so the cage would take the damage rather than transmitting it to the frame. | |
| Apr 4, 2014 at 2:14 | comment | added | mattnz | Hate to suggest it, as it goes against every normal recommendation, but cross chaining (Stay on a larger front than normal, going to a larger rear cog) could also help by bringing the derailleur inboard. | |
| Apr 3, 2014 at 23:30 | comment | added | Batman | I doubt it. It depends on how they're being mangled, but all I think the cheaper ones will do is piss OP off since they wont adjust properly. | |
| Apr 3, 2014 at 23:08 | comment | added | mattnz | Question - Would the really cheap chainstore ones made of steel be stronger? If OP is bending them regularly, they are certainly less painful in the back pocket to replace. Second hand Deore/XT level parts would save dollars and even if badly worn perform better than cheap ones and worth considering. | |
| Apr 3, 2014 at 23:06 | comment | added | mattnz | Additional sugestions are if you don't need the full gear range of the bike, going to a short cage derailuer will make a big difference, as will the newer Shadow derailuers where it sits closer in to the frame. | |
| Apr 3, 2014 at 17:26 | comment | added | Sponge Bob | Thanks for the info. I'm working right now, but I will post a photo when I get back. My derailleur has been bent about every axis, and I've never had it properly fixed. It doesn't look too bad at first glance, but it has trouble even keeping the chain on its little gears. | |
| Apr 3, 2014 at 17:19 | history | answered | Batman | CC BY-SA 3.0 |