The Hope GR4 is a four-piston gravity brake for the most demanding applications delivering maximum power with no compromise. Super-smooth lever action and premium construction make controlling that power feel natural. The benchmark brake for gravity and e-bike use.Increased lever hook provides greater control and security during aggressive riding while a new dimple design improves comfort during hard braking and retains grip in all weather conditions. New cam design decreases the free lever stroke while maintaining the feel and modulation in the braking zone. Features a roller bearing main pivot and 2 guide bushes to keep the piston running perfectly smooth and straight. One-piece caliper design for the best stiffness to weight ratio that results in improved lever feel and increased power

Hope EVO GR4 Left Hand Hydraulic Disc Brake Set - 4-Piston, Post Mount, Braided Hose

Reference Number: 3OW9MV

Elevate your downhill, gravity, or e-bike braking performance with the Hope EVO GR4 Disc Brake and Lever Set - Left Hand, Post Mount, 4-Piston, Braided Hydraulic Hose - Silver/Blue. Crafted for serious riders demanding maximum stopping power, this premium hydraulic disc brake system combines innovative engineering, high-quality materials, and sleek style to deliver unparalleled control in challenging riding conditions.

### Premium Materials & Engineering

Built with durability and precision in mind, the Hope EVO GR4 features a one-piece caliper body constructed from high-strength aluminum, offering an optimal balance of stiffness and lightweight performance. The braided hydraulic hose ensures superior heat dissipation, resistance to expansion, and consistent braking feel, even during prolonged descents. The brake lever utilizes a lightweight yet robust design with adjustable reach and contact point, facilitating a customized and comfortable riding experience.

### Advanced Components & Technology

The EVO GR4's quadruple-piston design provides aggressive, fade-free braking power ideal for demanding downhill, gravity-assisted, and e-bike applications. Larger pistons increase the mechanical advantage, delivering more stopping force with minimal lever effort. The new cam design reduces free stroke for immediate engagement while maintaining excellent modulation control, ensuring precise braking in all conditions. Roller bearing main pivots and guide bushes guarantee smooth piston movement and consistent performance.

### Innovative Features & Differentiators

- Increased Lever Hook & Dimple Comfort Design: Enhances control and comfort during aggressive riding and hard braking, maintaining grip in wet or muddy environments.

- Slimmer Caliper Profile: The bore cap redesign minimizes overall width, improving compatibility with a wide range of frames and reducing packaging constraints.

- Enhanced Adjustability: Expanded adjustment range for compatibility with various third-party hubs and frame setups, ensuring seamless integration.

- Rear-Ready Design: Specifically tailored for left-hand control, offering intuitive use for dual-brake setups or specific riding styles.

- Easy Maintenance: Bleed port integrated into the master cylinder simplifies bleeding procedures, saving you time and ensuring optimal performance without removing the lid.

### Style & Use Cases

Finished in an eye-catching silver with blue accents, the Hope EVO GR4 not only performs at the highest level but also adds a sleek, professional aesthetic to your bike. Designed for downhill, enduro, gravity, and e-bike enthusiasts, this brake set provides consistent, powerful stopping in all weather conditions, making it the ideal choice for riders pushing their limits on demanding trails or high-speed descents.

### Specs at a Glance:

- Hydraulic Disc Brake System

- Post Mount Caliper

- Left Hand Lever

- Includes Braided Hydraulic Hose

- DOT Hydraulic Fluid

- Organic Brake Pads

- Adjustable Reach & Contact Point

- Not Compatible with Vented Rotors

Upgrade to the Hope EVO GR4 for premium performance, reliable control, and innovative features that set the standard for gravity and e-bike braking systems. Dominate challenging trails with confidence - choose Hope for unmatched quality and engineering excellence.

  • High-performance four-piston hydraulic disc brake set featuring durable aluminum caliper construction and braided hydraulic hoses for superior strength and flexibility.
  • Designed for demanding gravity and e-bike applications, the Hope EVO GR4 offers maximum stopping power with innovative larger pistons and new cam design for enhanced modulation and power transfer.
  • Precision engineering includes a roller bearing main pivot, guide bushes, and a compact, lightweight one-piece caliper, ensuring smooth piston movement, increased stiffness, and improved lever feel for confident control in aggressive riding conditions.
  • The adjustable reach and contact point allow customized fit and precise modulation, while the updated bore cap design ensures better frame compatibility and easier installation in various bike setups.
  • Sleek silver and blue finish with weather-resistant features make this set not only high-performing but also stylish and reliable in all riding environments, perfect for serious cyclists seeking top-tier stopping power.
Item Specifications
Brake Lever ActuationHydraulic
Brake Caliper TypePost Mount
Rotor IncludedNo
Brake Lever UseLeft
ColorSilver/Blue
Hydraulic Fluid TypeDOT
Pad CompoundOrganic
Adjustable ReachYes
Adjustable Contact PointYes

Why 365 Cycles?

365 Cycles is an Authorized Hope Dealer, and we offer the Full Hope Warranty!

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365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.

At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.

We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.





Shipping & Handling

Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

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  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
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Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



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Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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