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Hope RX4+ Flat Mount +20 DOT Disc Brake Caliper Black
$126.50
Estimated delivery between November 03 and November 05.
$126.50
$126.50
Product Details
Hope RX4+ Flat Mount +20 DOT Disc Brake Caliper
The Hope RX4+ Flat Mount Front +20mm DOT Disc Brake Caliper is engineered for road and gravel cyclists demanding precision braking performance. Featuring an integrated flat mount design compatible with flat mount front forks only, this caliper supports 180mm or 160mm rotors depending on fork mount type. Its monobloc construction creates a stiffer, more responsive caliper body that eliminates the fuzzy lever feel and minimizes brake pad rub — making it an ideal upgrade for SRAM-equipped drivetrains including Red eTap AXS, Force eTap AXS, Rival, and Apex.
Built around a slimline 4-piston design, the RX4+ delivers powerful, consistent stopping power while keeping weight to a minimum. It uses DOT brake fluid exclusively and is compatible with SRAM S900 hydraulic systems.
- Front Flat Mount direct mount caliper with +20mm offset
- 4-piston slimline lightweight design
- Monobloc construction for increased stiffness and reduced brake pad rub
- Compatible with 180mm or 160mm rotors
- DOT brake fluid only
- Designed for drop bar hydraulic brake systems
- Compatible with SRAM Red eTap AXS, Red, Force eTap AXS, Force, Rival, Apex, and S900
- Available in 7 color options
Frequently Asked Questions
Do you offer free shipping?
Yes — free shipping on orders over $100 on gear, apparel and shoes. Heavy or oversized items over 10 lbs are excluded. See the full shipping policy.
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Yes, and it is free. Choose in-store pickup at checkout and collect at Doral, Coral Gables or North Miami Beach — we will email you as soon as your order is ready. See addresses and hours.
When will my order arrive?
The estimated delivery window is shown on this page above the Add to cart button and again at checkout, based on the item and your address. You will get a tracking email as soon as it ships.
Are your bikes assembled and ready to ride?
Yes. Every bike is pre-assembled, tuned and safety-checked by our mechanics before it leaves the shop, so it is ready to ride when you get it. More about our shop services.
What if it does not fit?
You have 30 days to return unused items in their original packaging. Read the return policy.
Can someone help me choose the right size or model?
That is what our stores are for. Come see us in Doral, Coral Gables or North Miami Beach, book a Retul bike fit, or send us a message and a real person will answer.
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