When replacing a chain at what angle should the rear derailleur be?
- Thread starter Lauris
- Start date
-
- Tags
- chain rear derailleur
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Yeah I know that
. I was just following the video on youtube from Parktool. They say put in biggest cog on rear and on the front biggest chain ring which shows at which angle rear derailleur should be.Photo 2 is small/big combo
I did that
measured properly.
Ajax Bay
Guru
- Location
- East Devon
When in large/large the RD cage should be no less than 45 degrees from horizontal.
Most riders avoid large/large but will eventually go there inadvertently (in the dark say) so the chain must allow that. A chain which is too long has much less adverse consequences in small/small, and what's more it'll let you know probably on small/second smallest sprocket, prompting a change to the the big ring. Large/small and small/large are not limiting combos: in fact they're precisely the combos you'll be in when flying downhill or grinding up steep hills respectively.
Most riders avoid large/large but will eventually go there inadvertently (in the dark say) so the chain must allow that. A chain which is too long has much less adverse consequences in small/small, and what's more it'll let you know probably on small/second smallest sprocket, prompting a change to the the big ring. Large/small and small/large are not limiting combos: in fact they're precisely the combos you'll be in when flying downhill or grinding up steep hills respectively.
Cycleops
Legendary Member
- Location
- Accra, Ghana
It's absolutely fine.
I like Skol
A Minging Manc...
- Location
- Sunny Ashton-under-Lyne
We really need a picture of small/small before passing judgment.....
the snail
Guru
- Location
- Chippenham
Is the chain threaded through the derailleur correctly? Looks a bit odd in the 1st pic.
raleighnut
Legendary Member
- Location
- One of the 'Elite'
Looks fine to me.
I like Skol
A Minging Manc...
- Location
- Sunny Ashton-under-Lyne
well spotted, looks like you are right. See here - https://www.cyclechat.net/threads/floppy-chain-what-am-i-doing-wrong.254457/#post-5773328
WOW! How did I not see that?!? LOL it was shifting all well but was a bit off thought it was because I have not lubed the chain yet Attachments
raleighnut
Legendary Member
- Location
- One of the 'Elite'
There are some eagle eyed members on here,
Shearwater Missile
Veteran
I have made the same mistake and thought the drive chain was noisy. I did`nt get out the garage mind you but felt such a plonker.
