Do you have a Shimano 11 speed shifter but are using a 9 speed cassette? You might be wondering if it’s possible to use the two together. The good news is that it is possible to use a 11 speed shifter with a 9 speed cassette.
You will need to use a spacer in order to make it work, but it is a relatively easy process. In this article, we’ll walk you through everything you need to know in order to make this happen.
- Insert the 11 speed shifter into the 9 speed cassette
- Line up the shifter with the cassette
- Push the shifter into the cassette
- Twist the shifter to engage the cassette
- Ride the bike and shift gears as needed
WHAT WILL HAPPEN || IF I PUT 8 SPEED SHIFTER ON 9 SPEED CASSETTE
Can I use 11 speed shifter with 9 speed derailleur?
11 speed shifters are not compatible with 9 speed derailleurs. This is because the shifter and derailleur are designed to work together and the shifter pulls a different amount of cable per shift. 11 speed shifters also have a longer throw, so they would not work properly with a 9 speed derailleur.
Can I use 10 speed shifter with 9 speed cassette?
No, you cannot use a 10 speed shifter with a 9 speed cassette. The two are not compatible with each other.
Can I run a 9 speed cassette fit 11 speed hub?
No, you cannot. 9 speed cassettes will not fit on 11 speed hubs. 11 speed hubs have a different width and spacing than 9 speed hubs, so the cassettes will not line up correctly.
Can I use a 10 speed shifter with a 9 speed derailleur?
Yes, you can use a 10 speed shifter with a 9 speed derailleur. The shifter will work just fine, although you may not be able to shift into the highest or lowest gears. This is because the 10 speed shifter has slightly different spacing than the 9 speed derailleur.
So, if you have a 9 speed cassette, you’ll be missing out on the 2 extra gears that the 10 speed shifter offers.

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11 speed rear derailleur with 10 speed shifters
If you’re looking to upgrade your rear derailleur to 11 speed, but don’t want to replace your 10 speed shifters, you’re in luck. There are a few options on the market that allow you to use 10 speed shifters with an 11 speed rear derailleur.
One option is the SRAM X0 2×11 Speed Rear Derailleur.
This derailleur is compatible with both SRAM 10 and SRAM 11 speed shifters. Another option is the Shimano Deore XT M8000 Rear Derailleur. This derailleur is also compatible with both Shimano 10 and Shimano 11 speed shifters.
If you’re looking to upgrade your rear derailleur to 11 speed but don’t want to replace your 10 speed shifters, there are a few options on the market that allow you to use 10 speed shifters with an 11 speed rear derailleur.
Conclusion
11 speed shifters are not compatible with 9 speed cassettes. The shifter pulls more cable per shift, so the cassette needs more space between the gears. 11 speed cassettes have an extra cog, so they are wider than 9 speed cassettes.