Where the big brands stop at 12 speeds, the eGR goes one further: 1×13, wireless and electronic. Gravel riding punishes drivetrains, and this system was designed with exactly that in mind. No cables to stretch or clog with grit, just wireless shifts that stay equally crisp on tarmac, gravel and singletrack. The rear derailleur uses an impact-resistant construction with L-TWOO's damping system, which keeps chain slap in check on washboard roads and rock gardens. Chain tension stays high, so every shift lands – even mid-descent.
The 400 mAh battery is built into the rear derailleur and charges over USB-C. No seatpost battery, no wiring through the frame – less installation work, and the system moves to another bike with ease.
The shifters feature carbon brake levers that feel light and solid in the hand. Running 1× means fewer parts and no front derailleur to worry about; at the back, the derailleur handles cassettes with a largest sprocket of 42 to 50 teeth – enough gearing for the steepest gravel climbs. And the eGR doesn't lock you into one standard: configurable for 10, 11, 12 or 13 speeds, so your current wheelset can come along.
Specifications
- Shifting: wireless electronic, 1×13 (also configurable as 1×10, 1×11 or 1×12)
- Rear derailleur: RD-EG1301-M-A, aluminium, M cage (93 mm), largest sprocket 42-50T, 333 g
- Battery: built into the derailleur, 400 mAh, USB-C charging
- Damping: L-TWOO damping system, impact-resistant construction
- Shifters: carbon brake levers, 210 g (left) / 233 g (right), CR2032
- Brakes: hydraulic disc, direct mount, fin-type cooling pads, 160 mm calipers
Box contents
- Left shifter ST-EG1202-L-C
- Right shifter ST-EG1202-R-C
- Electronic rear derailleur RD-EG1301-M-A (42-50T)
- Front hydraulic caliper BR-R04A-160F (160 mm)
- Rear hydraulic caliper BR-R07A-160R (160 mm)
- USB-C charging cable
