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Hope RX4+ Flat Mount Rear Disc Brake Caliper - Lightweight Hydraulic 4-Piston, DOT, Silver
Reference Number: 3OA5MN
Upgrade your bicycle's braking performance with the Hope RX4+ Disc Brake Caliper - Rear, Flat Mount, +20mm, DOT Type in Sleek Silver. Engineered for high-performance road, cyclocross, and gravel biking, this premium caliper combines innovative design, advanced materials, and cutting-edge technology for reliable, powerful stopping power in various riding conditions.
Materials & Engineering Excellence
Constructed from CNC-machined 2014-T6 aluminum, the Hope RX4+ caliper offers superior strength-to-weight ratio, ensuring durability and lightweight performance. Its monobloc design enhances stiffness, minimizing brake flex and delivering a more responsive, consistent brake feel. The high-quality materials and precision engineering ensure long-lasting operation, whether tackling rough terrains or urban commuting.
Performance & Components
This 4-piston hydraulic caliper provides optimal braking force with a slimline, lightweight profile ideal for competitive road cycling, cyclocross, and gravel adventures. Its fully serviceable design allows for extended caliper lifespan and easy maintenance. The top entry pad fitting simplifies installation and pad replacement, saving time during tune-ups or quick field repairs.
Technology & Compatibility
Designed to accommodate 140mm, 160mm, and 180mm rotors, the RX4+ delivers versatile braking power suited for various wheel sizes and setups. It features DOT fluid technology, with bore caps marked "D" for easy identification. Note that rotors and adapters are sold separately, making it compatible with a wide range of wheel and brake system configurations.
Style & Use Case
With its sleek silver finish, the Hope RX4+ caliper adds a modern aesthetic to any bike. Its flat mount design ensures clean, integrated installation on road, cyclocross, and gravel bikes. The caliper's compact profile reduces weight without compromising braking performance, making it ideal for riders seeking precise control and understated style.
Innovative & Differentiating Features
- Monobloc construction for increased stiffness and reduced lever fuzzy feel
- Slimline 4-piston design for consistent, powerful braking performance
- CNC-machined from high-grade aluminum for strength and weight savings
- Fully serviceable for extended lifespan and maintenance ease
- Top entry pad installation for quick and effortless setup
- Versatile compatibility with multiple rotor sizes (140mm, 160mm, 180mm)
- DOT fluid technology for reliable hydraulic performance in diverse riding conditions
Specifications
- Hydraulic brake actuation for smooth, consistent braking
- Flat Mount rear caliper, +20mm offset for optimal clearance
- Compatible with road and cyclocross levers (specific and SRAM options available)
- Silver color enhances bike aesthetics and cleanliness
- Separate rotors required (not included)
Elevate your bike's braking system with the Hope RX4+ Disc Brake Caliper - the perfect choice for riders demanding exceptional stopping power, durability, and style. Whether tackling technical cyclocross courses or demanding gravel adventures, this caliper is engineered to keep you confident and in control.
- Optimized for lightweight performance and durability, the Hope RX4+ Disc Brake Caliper features a monobloc design crafted from high-strength 2014-T6 aluminum, ensuring precise and reliable braking power.
- Designed for flat mount rear installation with +20mm offset, this caliper delivers compatibility with 140mm, 160mm, and 180mm rotors for versatile mountain and cyclocross use cases.
- Equipped with a slimline 4-piston configuration, it provides consistent modulation and powerful stopping force suitable for demanding trail rides or cyclocross races, enhancing rider confidence in all conditions.
- Features top entry pad fitting for quick and hassle-free maintenance, combined with a fully serviceable design that extends the caliper's lifespan and maintains optimal performance over time.
- Manufactured with CNC-machined precision from lightweight aluminum, the Hope RX4+ Caliper offers a sleek, modern aesthetic in silver, ideal for riders seeking premium components with innovative engineering for enhanced braking control.
| Item Specifications | |
|---|---|
| Brake Lever Actuation | Hydraulic |
| Brake Caliper Type | Flat Mount |
| Rotor Included | No |
| Brake Position | Rear |
| Color | Silver |
| Hydraulic Fluid Type | DOT |
| Defined Color | Silver |
| Kit | Front or Rear |
| Hydraulic Fluid Type | DOT |
| Color | Silver |
| Model Name | RX4+ SRAM |
| Caliper | Flat Mount 34mm +20mm Direct |
| Rotor | Separate |
| Weight | - |
Why 365 Cycles?
365 Cycles is an Authorized Hope Dealer, and we offer the Full Hope Warranty!
Fast Shipping!
Professional Customer Service- available 7 days a week
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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.
- Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
- Friday afternoon -Sunday orders ship the following Monday
- Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.
Combined Shipping Discounts
To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.- Be sure you are using the US site: https://www.ebay.com
- Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
- Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
- Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
- You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.
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.
