Daninplymouth
Senior Member
Hi, been playing around with my rear wheel then noticed my gearing was a bit off. Does my derailleur look bent? If so which way do I need to adjust it?
Rear derailleur
- Thread starter Daninplymouth
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roubaixtuesday
self serving virtue signaller
Adjustment guide and video here is a good resource
https://www.parktool.com/blog/repair-help/rear-derailleur-adjustment
https://www.parktool.com/blog/repair-help/rear-derailleur-adjustment
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Daninplymouth
Senior Member
It’s not so much the adjustment as the bike was running perfect. I was then playing around moving the rear derailleur as I just got a chainlift tool however it wasn’t set up right at first. Then after I noticed I had lost the ability to get to the smallest gear, I could get on it using the di2 trim adjust but had to make a large change. So was wondering if I had bent the hanger slightly whilst getting used to the tool
Ajax Bay
Guru
- Location
- East Devon
Is this the tool you haven't been able to do without? Maybe return the RD to the position before you started 'playing around'.
https://eu.chainlift.com/pages/how-to-use-chainlift
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Daninplymouth
Senior Member
That’s the one yes chainlift. I was playing around removing the wheel and swapping to the trainer quite a few times so I could have knocked it on this. But at first the tool wasn’t set correctly on my derailleur so wonder if I pushed it at an awkward angle. After I I had finished I noticed I couldn’t get onto my top gear and could only do so by moving the trim adjusters quite a bit which says to me something got moved
Sounds to me like the derailleur hanger has been bent. A more likely scenario than the derailleur being bent in my experience.
Ajax Bay
Guru
- Location
- East Devon
"the bike was running perfect. I was then"
Doesn't seem likely (to me) that a bent hanger would result from:
"playing around moving the rear derailleur . . . it [?] wasn’t set up right at first. Thenafter I noticed I had lost the ability to get to the smallest gear"
But this is Di2 stuff and maybe, @si_c you recognise the symptom.
Doesn't seem likely (to me) that a bent hanger would result from:
"playing around moving the rear derailleur . . . it [?] wasn’t set up right at first. Then
But this is Di2 stuff and maybe, @si_c you recognise the symptom.
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Daninplymouth
Senior Member
It would have been set up right Iv not long had it back from being serviced and set up, this is when I took notice of what my di2 trim was -2. When I was getting to grips with the chainlift after trying a few times I realised it wasn’t pushing my derailleur straight back, have made a tweak now so it works fine but then after refitting the wheel I couldn’t get to top gear. I can now use all my gears but have set my trim to +14 so that’s quite a change so guessing something had bent something and wasn’t sure if you’d be able to tell from the photo. Will take a closer look at the hanger when later
Xipe Totec
Frrrg rrrrf yrrrr crrrnds
- Location
- Between The Thirteen And The Nine
Apropos of nothing (or, considering the context, possibly everything) what the hell's a 'chainlift tool'? Never heard of this before, despite being across most cycling gadgetry. Looked at the website and I'm none the wiser.
Alex321
Veteran
- Location
- South Wales
I'd never heard of it either. It looks like it is just something to stop you having to manually handle the chain when removing/refitting the rear wheel.
figbat
Slippery scientist
- Location
- South Oxfordshire, UK
That’s it. It’s intended to help with rear wheel removal.
Sea of vapours
Guru
- Location
- Clapham, Yorkshire Dales
You've just cost me €85.71.
I went from "What's the point of that - it's hardly difficult!" to "What a useful, and allegedly well made, tool in multiple ways!" over the course of watching the videos on their web site and reading reviews.
That said, I can see the potential for bending a derailleur hanger, though I found no reports of people doing so when reading third party reviews.
I went from "What's the point of that - it's hardly difficult!" to "What a useful, and allegedly well made, tool in multiple ways!" over the course of watching the videos on their web site and reading reviews.
That said, I can see the potential for bending a derailleur hanger, though I found no reports of people doing so when reading third party reviews.
Xipe Totec
Frrrg rrrrf yrrrr crrrnds
- Location
- Between The Thirteen And The Nine
OK - I get it now. The point's still eluding me a bit though, I have a box of nitrile gloves that cost a couple of quid & a chainkeeper bodged from an old hub & cassette, which let me do the same thing without getting my hands dirty or risking bending my rear mech.
I do like a gadget though - am I missing something?
I do like a gadget though - am I missing something?
Sea of vapours
Guru
- Location
- Clapham, Yorkshire Dales
For me - and I'm perfectly happy removing and replacing a rear wheel whilst wearing nitrile gloves - it's the same set of benefits as a chain keeper, with the added benefits of making the wheel in/out bit a little easier too. Plus, and this is a big one, it provides the ability to spin the wheel freely to listen for bearing and disc brake issues without chain / freehub noise. It's like being able to take the chain off without actually doing so. And I can see how it might be possible to bend the hanger and I'm confident I can avoid that now that I've recognised how to do it.
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