The Shimano Upgrade Kit allows for the conversion of an existing mechanical 1x12-speed Shimano drivetrain to an electronic Di2 system. This set includes the RD-M9250-SGS derailleur, the SW-M9250-IR shifter, and the BT-DN320 battery, which is necessary for powering the derailleur. Additionally, a charger (EC-DN100) and a chain link (SM-CN910-12) are included to ensure a complete and smooth installation. The upgrade kit is specifically designed for use with a 12-speed cassette with a maximum sprocket size of 51 teeth, making it ideal for mountain bikes. With this kit, cyclists can take advantage of the benefits of electronic shifting technology, which offers precise shifting and improved performance.
Bike area of use | Mountain bike |
Cage length | Long |
Item number | 58512558 |
Manufacturer | Shimano |
Category | Rear derailleurs |
Manufacturer no. | 72.89765 |
Release date | 4.6.2025 |
Sales rank in Category Rear derailleurs | 16 of 376 |
Colour | Black, Grey |
Exact colour description | Black, Grey |
Material group | Metal |
Cassette compatibility | 12-speed |
Maximum pinion size | 51 x |
Shift capacity | 41 x |
Bike area of use | Mountain bike |
Cage length | Long |
Design rear derailleur | Shadow+ |
Switching system | Electric |
Circuitry | Top normal |
Model year | 2025 |
Bicycle product series | Shimano - XTR |
Country of origin | Japan |
CO₂-Emission | |
Climate contribution |
Length | 35.80 cm |
Width | 16.40 cm |
Height | 10.10 cm |
Weight | 1.08 kg |
How often does a product of this brand in the «Rear derailleurs» category have a defect within the first 24 months?
Source: Digitec GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec GalaxusHow often is a product of this brand in the «Rear derailleurs» category returned?
Source: Digitec Galaxus