Brake type: Disc brake, flat mount (In-line cable actuated hydraulic calipers).
eBay
Shimano Deore XT Di2 SW RD M8050 Shifter Firebolt Shift Button 11s Electronic Shifter Rear Derailleur Bicyle For EP8 EP801 E-MTB
Aliexpress UK
What’s included: Shifters (ST-6870), front derailleur (FD-6870), rear derailleur (RD-6870-SS), calipers (BR-6800), junction box A, junction box B, Di2 wires, Di2 battery (SM-BTR2). Brake type: Rim brake, standard center mount.
eBay
Di2 Grommets Rubber Plug 6mm 7mm 8mm Frame Electronic Shifter Cable Cover Front Rear Derailleur Mechanical
Aliexpress UK
Good condition Perfect working order
eBay
SHIMANO DI2 RD-R7150/R8150/R9250 Rear Derailleur GG Adjustment Gauge Y3JS9803T Y3GK89600
Aliexpress UK
Shimano Ultegra RD-6800 Ultegra Di2 RD-6870 Tension & Guide Pulley Set Y5YC98140 New Please look at the pictures as these form a major part of the description
eBay
Risk 2pcs Road Bike 12S SD300 Rear Derailleur Di2 Electric Wire Fixing Buckle Clip Bicycle Cable Organizer for R7150 R8150 R9250
Aliexpress UK
Item has a couple of scuffs but works fine - see photos.
eBay
Type C Charger Converter for Electronic Rear Derailleur For DI2 12 Speed 4 Pin Adapter R9270 R9250 R8170 R8150 R7170 RX825
Aliexpress UK
Brake type: Rim brake. Gearing: 2x11 speed.
eBay
Di2 Grommets Rubber Plug 6mm 7mm 8mm Frame Electronic Shifter Cable Cover Front Rear Derailleur Mechanical
Aliexpress UK
What’s included: Shifters (ST-6870), front derailleur (FD-6870), rear derailleur (RD-6870-GS), battery (SM-BTR1), junction box A, junction box B, Di2 wires. Brake type: Rim brake. Rear derailleur: Long cage: (GS).
eBay
Electronic Shifter Cable Cover, Front Rear Derailleur, Mechanical Accessories Grommets Rubber Plug Frame For Di2 6mm 7mm 8mm
Aliexpress UK
Used but tested and working no box
eBay
Di2 Grommets Rubber Plug 6mm 7mm 8mm Frame Electronic Shifter Cable Cover Front Rear Derailleur Mechanical
Aliexpress UK