Shimano GRX ST-RX825/BR-RX820 Hydraulic Disc Brake Set

Name: Shimano GRX ST-RX825/BR-RX820 Hydraulic Disc Brake Set
Brand: Shimano
SKU: IRX8251DRRDSC170B
Price: 37240.0 INR
Availability: OutOfStock

Wireless Di2 Gravel Control with Hydraulic Disc Braking

₹37,240

Type

Right/Rear

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The Shimano GRX ST-RX825 Di2 Dual Control Lever brings 12-speed wireless shifting to gravel and mixed-terrain adventures. With rapid, reliable performance, it ensures effortless gear changes, letting you focus on the ride ahead rather than your drivetrain.

Ergonomic Gravel-Specific Design: Built for control and comfort, the lever features raised hoods, a ribbed surface texture, and an anti-slip coating on the blade. The newly optimized hood body integrates seamlessly with flared handlebars, while maintaining the gravel-specific third button location for extra control options.

Advanced Customization Options: To further enhance cockpit versatility, the RX825 lever is compatible with three different satellite shifter options. It also supports Shimano’s Front Shift Next functionality, allowing riders to customize shifting preferences for a truly personalized setup.

Compact, Quiet, and Responsive Braking: The Shimano BR-RX820 flat-mount hydraulic disc brake caliper offers a new level of control for gravel cycling. Its refined design ensures enhanced modulation, a quicker initial braking point, and quieter operation, even under demanding conditions.

Easy to maintain, powerful, and ergonomically optimized, this set is the ideal choice for riders who demand precision, control and confidence across every terrain.

Product details

Specifications

Model No	ST-RX825-R
Series	GRX
Color	Series Color
Shifter Type	Dual Control Lever
Remote Switch	Yes
Brake Lever\|Brake Hose (Kit)	SM-BH90-JK-SSR
Brake Lever\|Hose Joint	Straight
Brake Lever\|Brake Hose Color (Kit)	Black
Brake Lever\|Recommended Brake Caliper	BR-RX820
Brake Lever\|Oil	Shimano Mineral
Brake Lever\|Reach Adjust	Yes
Brake Lever\|Clamp Band	23.8–24.2 mm
Brake Lever\|Funnel Bleeding	Yes
Brake Lever\|Free Stroke Adjust	Yes
Brake Lever\|Servo Wave	Yes
Di2 Connectivity Wireless\|Di2 Shifting	Yes
Firmware Update by E-Tube Project	Yes
SD300 Port (Pcs)	1
Port for SD300 Satellite Shifter (Pcs)	1
Battery	2× CR1632
Model No	BR-RX820

Series	GRX
Brake Type	Hydraulic Disc Brake
Brake Hose (Kit)	SM-BH90-JK-SSR
Hose Joint	Straight
Brake Hose Color (Kit)	Black
J-Kit Spec (OEM)	Yes
Ice Technologies Pad Compatible Caliper	Yes
Pad\|Standard 1	K05S-RX Resin (w/o Fin)
Pad\|Standard 2	L05A-RF Resin (w/ Fin)
Pad\|Option	L04C-MF Metal (w/ fin)
Fixing Screw Spec for Rear Mount (mm)	10, 15, 20, 25, 30 and 35
Recommended Brake Lever	ST-RX820, ST-RX820-LA, BL-RX820-L
Recommended Disc Brake Rotor	RT-CL800
Oil	Shimano Mineral
One Way Bleeding	Yes
Mount Type	Flat mount
Piston	2
Caliper Fixing Screw\|Tool Size	4 mm
Caliper Fixing Screw\|Anti-Loosen Method	Screw Fix Pin + Snap Ring
Pad Mount	Pad Axle
Average Weight	136 g (Rear)

Features

Wireless Shifting Integration: Clean cockpit with fast and reliable 12-speed Di2 wireless shifting for gravel and mixed-terrain use.
Extended Battery Life: Up to 3–4 years of runtime with CR1632 shifter batteries, easily replaceable for uninterrupted rides.
Ergonomic Hood Shape: Raised hoods, ribbed texture and anti-slip lever coating optimize comfort and control on long gravel descents.
Satellite Shifter Compatibility: Supports Shimano’s SW-RS801 satellite shifters and Front Shift Next functionality for custom cockpit setups.
Flared Handlebar Design: Hood body shape engineered specifically for flared bars, ensuring secure grip and stable handling.
Refined Caliper Design: BR-RX820 caliper provides 10% wider pad clearance for reduced brake noise and easier maintenance.

Technologies

Reach Adjust: Fine-tune lever reach to match any hand size or riding style for better control and comfort.
Raised Hood Head: Prevents hand misalignment and slippage on rough gravel descents.
Secure Grip Texture: Textured surface and anti-slip coating maintain lever control in wet or muddy conditions.
Optimized Hood Shape: Gravel-specific profile distributes pressure across hands for long-range comfort on flared bars.
One Way Bleeding: Simplified oil routing ensures quick, clean maintenance by preventing air bubbles in the system.

Warranty and support

Covered by the manufacturer's warranty. Warranty claims go through us and we deal with the brand for you.

Shimano warranty terms

Questions after delivery? Ask TBA Guide or WhatsApp us.

Shipping and returns

We ship across India. Shipping is free on orders above ₹2,000 and ₹99 below that. Cash on delivery is available on orders up to ₹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy

Most Shimano products take a little longer to ship.

Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy