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SKU: HBSL0229

Shimano GRX ST-RX610 Shift/Brake Lever with BR-RX400 Hyd Disc Brake Caliper - Right/Rear, 12-Spd, Flat Mnt Caliper, For

Regular price $309.31
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Description
Specifications

Enhance your gravel, cyclocross, or mixed-terrain riding experience with the Shimano GRX ST-RX610 Shift/Brake Lever with BR-RX400 Hydraulics. Designed specifically for adventure-ready cyclists, this high-performance component combines precise shifting, superior braking control, and durability to tackle any terrain with confidence.

Materials & Performance Engineering

Engineered with Shimano's advanced hydraulic technology, the ST-RX610 lever features a rugged yet lightweight construction with textured hoods and anti-slip brake lever surfaces, ensuring optimal grip and control during bumpy rides. The BR-RX400 hydraulic disc brake caliper utilizes Shimano's ICE (Ice Technology for Cold Environment) systems, offering exceptional heat dissipation and consistent braking performance even under intense riding conditions.

Components & Technology

This 12-speed shifter seamlessly integrates with Shimano's RX610 drivetrain systems, providing crisp, reliable gear changes on gravel and mixed terrain-perfect for riders seeking versatile capabilities. The adjustable reach mechanism allows riders to personalize lever position for ergonomic comfort and enhanced control, catering to different hand sizes and riding styles. The flat mount hydraulic caliper with 2-piston configuration ensures excellent stopping power with minimal weight and a sleek profile.

Innovative & Differentiating Features

- Gravel-Specific Ergonomics: Designed with gravel riders in mind, the lever body offers optimized ergonomics for extended riding comfort and control.

- Hydraulic Braking Precision: Shimano's hydraulic disc technology ensures powerful, responsive braking with minimal lever effort, ideal for technical descents and varied terrain.

- Easy Maintenance: One-way bleeding system and J-Kit tool access simplify setup, adjustments, and maintenance, reducing bike downtime.

- Enhanced Heat Management: ICE technology-equipped calipers prevent overheating during extended climbs or descents, maintaining consistent braking performance.

Use Case & Style

Perfect for gravel riders, cyclocross racers, and adventure cyclists, the Shimano GRX ST-RX610 offers a sleek black finish that complements any bike aesthetic. Whether navigating challenging ascents or technical descents, this right/rear shift and brake combo provides reliable, smooth operation in all riding conditions.

Specifications:

- Hydraulic brake actuation with resin pad compound for excellent heat dissipation

- Flat mount caliper with 2-piston design for precise stopping power

- Compatible with 12-speed Shimano road and gravel drivetrains

- Reach adjustment feature for personalized fit and comfort

- Hose length: 1700mm for customizable routing

- Includes L05A-RF brake pads (finned backplate, resin compound) for thermal efficiency

- Color: Black (Note: disc rotor sold separately)

Upgrade your gravel setup with confidence using the Shimano GRX ST-RX610 Shift/Brake Lever and BR-RX400 Hydraulics - engineered for durability, control, and versatility on every ride.

  • Enhanced 12-speed handlebar control with Shimano's GRX RX610 dual control levers optimized for gravel and mixed-terrain rides.
  • Ergonomically designed gravel-specific levers with textured surfaces and anti-slip coating provide superior grip and precise control on bumpy, technical terrains.
  • Hydraulic disc brake caliper featuring Shimano's ICE technologies offers outstanding heat dissipation, increased braking power, and consistent performance during extended rides.
  • Adjustable reach mechanism ensures customized fit for various hand sizes and riding styles, enhancing comfort and control on long gravel adventures.
  • Designed for durability and easy maintenance with one-way bleeding, J-Kit compatibility, and resin brake pads with finned backplate for optimal heat management and reliable stopping power.
Brake Lever ActuationHydraulic
Rotor IncludedNo
Brake Caliper MountFlat Mount
Brake Lever UseRight
Rear Der/Shifter CompatibilityShimano Road
Drivetrain Speeds12
Front Der/Shifter CompatibilityShimano Road
Shifter/Derailleur CompatibilityShimano
ColorBlack
Hydraulic Fluid TypeMineral Oil
Pad CompoundResin
Hydraulic Hose Length1700
Adjustable ReachYes
Adjustable Contact PointYes
Defined ColorBlack
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365 Cycles puts the customer above everything. Our number one goal is your satisfaction. When you press the shift lever you want the gears to shift, and when you buy bicycle parts, you want the bicycle parts to arrive on time in new condition. With over 60,000 products and 22 warehouse locations throughout the country, we have the parts you need and they are coming in hot!

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Our team is waiting to help you 7 days a week and they are more qualified to help than I am but if you ever feel like you're not getting the service you need I’m personally asking you to email me at ben@365cycles.com with "CUSTOMER LOYALTY" in the title and I will personally handle your order.

Over the years we have served millions of satisfied customers and continue to serve many of them today. With your feedback, we are confident we can take this lifelong journey together and build a friendship that goes beyond parts and accessories.

“If you want to go fast, go alone, if you want to go far, go together.” -Someone Smart

Ben Berman Founder & CEO of 365 Cycles


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