Ieftin SCHIMBATOR FOI SHIMANO GRX FD-RX825 CS 63-66 CL 47MM 48T

The GRX Di2 RX-825-F 2×12-speed front derailleur was developed by Shimano specifically for maximum tyre clearance. Thanks to the generous chain guidance and the 2.5 mm outwardly offset chain line, it is also possible to ride particularly wide tyres, which are becoming increasingly popular on gravel bikes. Naturally, the electronic GRX front derailleur shifts with the high precision typical of Shimano.
Gravel cycling is not meant to be overly complicated. The heart and soul of cycling’s drop bar, dirt road discipline is rooted in simplicity, inclusivity, and adventure. No ride is out of bounds. All are welcome to join. Gear should be functional and reliable but need not break the bank. That’s why whether you’re a grizzled gravel cycling veteran or brand new to the road (or trail) less traveled, you’ll appreciate the latest iteration of Shimano’s groundbreaking—and industry-first-gravel-specific GRX component group. Designed to help you get the most from your next unpaved adventure, RX825 delivers top-tier performance without an over-the-top price.
For riders seeking the best of both worlds, the new 2×12 RX825 UNDROPPABLE drivetrain is the choice. Utilizing a gravel-optimized 48/31 or 46/30 front chainring paired with an 11-34 or 11-36 cassette, this setup delivers an ultra-wide gear range so you can spin a comfortable cadence whether cruising the flats, smashing endless dirt road rollers, or tackling a massive backcountry climb.
This setup delivers precise shifting both front and rear and an integrated SHADOW PLUS chain stabilization for ultimate security over bumpy terrain. The gravel-specific 2×12 option maintains tighter rear cassette gear steps, ideal for subtle cadence changes during competitive racing and spirited weekend group rides.
The new wireless Di2 platform ensures fast and smooth shifting at the front derailleur. It also offers a choice between manual shifting and synchronised shift assist modes – SEMI-SYNCHRO or FULL-SYNCHRO – that feel like your own personal assistant! In SEMI-SYNCHRO mode, the rear derailleur automatically adjusts to avoid big jumps in gear ratio so you can maintain your cadence and rhythm. In FULL-SYNCHRO mode, the rear derailleur and front derailleur work together harmoniously so that you always have the right gear engaged and no longer have to worry about it. Seamless communication with the rear derailleur combined with programmed chain guide control minimises the risk of the chain jumping off.
It’s up to you how often you want to think about the gear ratio!In the E-TUBE app, you can select the fully and semi-synchronised shifting functions. Thanks to the digital precision of the electronic shifting and its coordinated communication between the front and rear derailleurs, the SHIMANO GRX front derailleur offers an excellent shifting experience.
Product features
Use: Gravel, Cyclocross
Group: GRX Di2 RX825
Model: FD-RX825-F
Mounting: Brazed-on
Cable route type: Down-Pull
Gear front: 2-speed
Gear rear: 12-speed
Top gear teeth: 48T
Total capacity: 17T
Compatible chain: 12-speed HG
Chain stay angle: 63-66°
Chain line: 47mm
Compatible electric wire: EW-SD300 Firmware update by E-tube Project: Yes
E-tube port (pcs): 1
E-tube connector (pcs): 0
Di2 Wireless-Chip: No
Weight: approx. 142g (manufacturer information)