SHIMANO GRX Di2 RD-RX825 Rear Derailleur

$594.99

In stock

Product Highlights

Compact design with integrated wireless unit, charging port, and switch
12 spd
Fast and reliable shifting on rough terrain
Adjustable chain stabilizer prevents chain slap
SHIMANO SHADOW RD+
Gravel-tuned clutch tension
Switch stabilizer ON/OFF to match terrain: ON for gravel, OFF for smooth roads
LED status indicator
Battery indicator, pairing, adjust mode, etc.
Top sprocket: Max. 11T/Min. 11T
Low sprocket: Max. 36T/Min. 34T

Frequently Asked Questions

What is the weight of the SHIMANO GRX Di2 RD-RX825 Rear Derailleur?

The SHIMANO GRX Di2 RD-RX825 weighs approximately 300 grams, making it lightweight for gravel and mixed-terrain riding.

Is the RD-RX825 compatible with other Shimano groupsets?

The RD-RX825 is specifically designed for the GRX series and may not be compatible with other Shimano groupsets.

How do I charge the RD-RX825?

The RD-RX825 features a built-in charging port for easy recharging using a standard USB cable.

What is the maximum sprocket size it supports?

The RD-RX825 supports a maximum low sprocket size of 36T, ideal for steep climbs.

Can I adjust the chain stabilizer?

Yes, the RD-RX825 has an adjustable chain stabilizer with an ON/OFF switch for varying terrain conditions.

Free Shipping $100+

Free shipping on all orders over $100 (before tax)
All orders are processed within 1 business day
Orders ship from our warehouse in Guelph, ON
Free shipping ranges from 2-6 business days depending on location within Canada
Expedited shipping options (which ranges from 1-3 business days) are available at checkout upon entering your shipping address
We ship with most major couriers, including Canada Post, UPS, Fedex, Purolator, Canpar, and ICS
Full shipping details can be found in our shipping policy

Returns & Exchanges

If your NOMAD purchase isn't quite right for you, you may return it for a refund within 30 days from delivery
Return items must be unused and accompanied by all original packaging, with both product and packaging in an undamaged state and all product tags intact
Refunds will be issued to your original form of payment within 2-5 business days of receipt of items at our distribution centre
We cannot accept returns or exchanges of the following items:
- Nutrition products
- Gift cards
- Water bottles
- Personal care items, such as body creams and lotions
- Items marked as clearance or final sale
Return shipping fees are the responsibility of the customer
Full return details can be found in our return policy

Integrated Wireless Connectivity

The SHIMANO GRX Di2 RD-RX825 rear derailleur features a compact design with an integrated wireless unit and charging port, ensuring seamless connectivity and easy recharging.

Reliable Performance on Rough Terrain

Equipped with SHADOW RD+ technology, this derailleur offers fast and reliable shifting, while the adjustable chain stabilizer prevents chain slap, making it ideal for mixed-terrain riding.

Customizable Shifting Modes

Compatible with 11-34T and 11-36T 12-speed cassettes, the RD-RX825 supports Full or Semi-Synchronized shift modes, allowing for enhanced rider customization.