Sram GX derailleur

[Lukas Ferreira]

Hallo

quick question

Will a Sram GX 10 speed rear derailleur work on a 12 speed cassette?

[Super Sywurm]

3 minutes ago, Lukas Ferreira said:

Hallo

quick question

Will a Sram GX 10 speed rear derailleur work on a 12 speed cassette?

I'm no expert, but no.

Edited May 6, 2022 by Super Sywurm
Grammer

[Super Sywurm]

https://www.google.com/search?q=can+a+10+speed+derailleur+fork+on+12+speed+cassette&client=ms-android-samsung-ss&ei=p-d0YtH5GaaChbIPwLu_-A0&oq=can+a+10+speed+derailleur+fork+on+12+speed&gs_lcp=ChNtb2JpbGUtZ3dzLXdpei1zZXJwEAEYADIICCEQFhAdEB4yCAghEBYQHRAeOgYIABAWEB46BQghEKABOgcIIRAKEKABOgQIIRAVOgQIABANOgYIIRAKEBU6CgghEBYQChAdEB5KBAhBGABQXFjWFWCtHWgAcAB4AIABmgWIAesukgEIMy0xMi4zLjGYAQCgAQHAAQE&sclient=mobile-gws-wiz-serp

[Steady Spin]

Maybe to hold the bike in one gear? 
 

[DieselnDust]

No. It does not have the appropriate geometry and cage design

[Titleist]

2 hours ago, Lukas Ferreira said:

Hallo

quick question

Will a Sram GX 10 speed rear derailleur work on a 12 speed cassette?

 

Yes, only for 10 gears

[Steady Spin]

1 hour ago, Titleist said:

 

Yes, only for 10 gears

It won't even shift 10 gears. The sprocket spacing between the 10 and 12 is different and the pull ratio between 10 and 12 is also different.