Bicycle Drivetrain Builder

Design Your Own Drivetrain

There are a ton of parts out there, but what is compatible? It turns out, there are options if you mix and match parts.

Lowest Gearing with Drop-Bar Shifters

Combination Speeds Status Max Tooth Chain Wrap
SRAM Apex 1 11-Speed shifter/Campagnolo Ekar 13-Speed derailleur 11 Has Potential 44 35
SRAM Apex 1 11-Speed group 11 Supported 42 31
Campagnolo Ekar 13-Speed shifter/Shimano GRX 10-Speed derailleur 11 Has Potential 36 41
Microshift Advent X 10-Speed shifter/Shimano CUES 9-Speed derailleur 10 Has Potential 36 41
Sensah Team Pro 11-Speed shifter/Shimano GRX 10-Speed derailleur 11 Has Potential 36 41
Shimano Ultegra 11-Speed shifter/GRX 10-Speed derailleur 11 Has Potential 36 41
SRAM Apex 1 11-Speed shifter/GX 10-Speed derailleur 9 Has Potential 36 47
SRAM Apex 1 11-Speed shifter/GX 10-Speed derailleur 10 Positive Reviews 36 47

Widest Range with Drop-Bar Shifters

Combination Speeds Status Max Tooth Chain Wrap
SRAM Apex 1 11-Speed shifter/GX 10-Speed derailleur 9 Has Potential 36 47
SRAM Apex 1 11-Speed shifter/GX 10-Speed derailleur 10 Positive Reviews 36 47
Campagnolo Ekar 13-Speed shifter/Shimano GRX 10-Speed derailleur 11 Has Potential 36 41
Microshift Advent X 10-Speed shifter/Shimano CUES 9-Speed derailleur 10 Has Potential 36 41
Sensah Team Pro 11-Speed shifter/Shimano GRX 10-Speed derailleur 11 Has Potential 36 41
Shimano Ultegra 11-Speed shifter/GRX 10-Speed derailleur 11 Has Potential 36 41

More Information

All Combinations

Shifters

Derailleurs

Cassettes

Frequently Asked Questions