Nas Cycling - Hi, I made a compatibility chart for a 2x10 mullet drivetrain. If you're looking to repurpose your old Shimano 10 speed road shifters for gravel riding, this might help
![Shimano GRX component series is the first dedicated gravel group w/ 10 & 11 speed options - Bikerumor Shimano GRX component series is the first dedicated gravel group w/ 10 & 11 speed options - Bikerumor](https://bikerumor.com/wp-content/uploads/2019/05/shimano-GRX-component-compatibility-chart-parts-list.gif)
Shimano GRX component series is the first dedicated gravel group w/ 10 & 11 speed options - Bikerumor
![drivetrain - Will it cause problems if I use components from different series? - Bicycles Stack Exchange drivetrain - Will it cause problems if I use components from different series? - Bicycles Stack Exchange](https://i.stack.imgur.com/yU3Di.png)
drivetrain - Will it cause problems if I use components from different series? - Bicycles Stack Exchange
Do Shimano 10 speed and 11 speed derailleurs have the same pull ratio? | Mountain Bike Reviews Forum
![drivetrain - Will it cause problems if I use components from different series? - Bicycles Stack Exchange drivetrain - Will it cause problems if I use components from different series? - Bicycles Stack Exchange](https://i.stack.imgur.com/i1y1S.png)
drivetrain - Will it cause problems if I use components from different series? - Bicycles Stack Exchange
Shimano's Deore 10 and 11-speed groups will bring your old bike up to speed | Mountain Bike Reviews Forum
![Shimano GRX component series is the first dedicated gravel group w/ 10 & 11 speed options - Bikerumor Shimano GRX component series is the first dedicated gravel group w/ 10 & 11 speed options - Bikerumor](https://bikerumor.com/wp-content/uploads/2019/05/shimano-GRX-component-compatibility-chart-1x11.gif)