Can I use 46t narrowwide chainring with my 105 medium length rear derailleur or will it cause any damage/ performance issues?
by Captsiomai
Can I use 46t narrowwide chainring with my 105 medium length rear derailleur or will it cause any damage/ performance issues?
by Captsiomai
4 Comments
Just an additional info, its the 11speed version (r7000), cogs size is 11-34
Max. 34T and a 36 would probably fit too, but with a 46 the top pulley will touch the largest sprocket… there are some link extenders out there, never tried them.
If all you’re changing is the chainring, it’s fine. It would be as if you’re never shifting in front, which works fine with any rd. If you’re also changing the cassette then that’s a different story.
It will work, but you risk both chainslap and the bouncing of the chain walking the chain off the front chainring, even if you use narrow-wide.
If you are riding on pavement, and are careful when riding off curbs and over rough sections (either completely stop pedaling until the chain settles, or don’t stop pedaling and keep tension on the chain) then you’ll be fine.
It will not damage anything, it’s just you lose the front-chainring-retention that’s imparted by the front derailleur. A narrow-wide chainring helps with that, but it’s not a perfect solution. (This is where clutch derailleurs come in, the extra chain tension keeps the chain in place.)