Microshift

Microshift Rear Derailleur - R9 RD-R42S - 2 x 9/10 Speed - Short Cage - 11-28T (Shimano Road)

$55.95
Tax included. Shipping calculated at checkout.

🚴 Microshift R9 Rear Derailleur – Precision & Performance 🚴‍♂️

Ready to elevate your road biking experience? Say hello to the Microshift R9 RD-R42S Rear Derailleur, the ultimate blend of smooth shifting and durability. 🚀

  • ⚙️ Compatibility: 2 x 9/10 speed systems—perfect for Shimano road bikes!
  • 📏 Short Cage Design: Optimized for an 11-28T cassette, ensuring swift and precise gear changes.
  • 🏆 Performance: Engineered for efficiency and built to conquer every mile.
  • 🔧 Durability: Made to withstand the toughest rides while staying lightweight.

Whether you're climbing hills, cruising flats, or speeding through a sprint, the Microshift R9 is your trusted partner on every road adventure. 🌟

Upgrade your ride today and experience next-level shifting performance! 🌄

Shipping & Returns

🚀 Fast & Reliable Shipping

Same-Day Dispatch: Orders placed before 2 PM ship the same day.

Express Shipping Available: Get your order in 1-3 business days.

Free Shipping: On all orders over $50.

Live Tracking: Stay updated with real-time tracking on all orders.


🔄 Hassle-Free Returns

30-Day Returns: If you’re not satisfied, return it unused & in original packaging for an exchange or refund.

Easy Process: Contact our support team for a simple return process.


📩 Need help with an order? Reach out to us via email, chat, or phone!

Fleet-Tested Reliability
Genuine Replacement Components
Safe, Durable, Mechanic-Approved
Fleet-Tested Reliability
Genuine Replacement Components
Safe, Durable, Mechanic-Approved
Fleet-Tested Reliability
Genuine Replacement Components
Safe, Durable, Mechanic-Approved

Upgrade Your Ride

🛠 Build, Repair & Customize – All in One Place!

📌 Complete Your Setup with These Must-Have Add-Ons:

✅ Same-Day Processing

Orders placed before 2 PM ship the same day

✅ Express Shipping Available

Get your tyres in 1-3 business days

✅ Flat-Rate & Free Shipping

Free shipping on orders over $119

🔥 Why Choose Our Bike Parts?

Premium-Quality Materials for Maximum Durability

Compatible with All Bike Types & Riding Styles

Designed for Performance, Safety & Longevity

Trusted by Thousands of Riders & Mechanics


💬 Need help? Contact us via live chat, email, or phone—we’re here to assist!

❓ What if I order the wrong part?

No worries! We offer hassle-free exchanges and returns within 30 days. Just keep the tyre unused and in its original packaging.

❓ What if I’m not happy with my purchase?

We offer a 100% Satisfaction Guarantee. If you’re not happy, we’ll make it right—refund, exchange, or store credit.

❓ How do I choose the right part for my bike?

You may need to research what parts fit your bike or feel free to contact us!

❓ Are these parts compatible with e-bikes?

Yes! Our parts are e-bike compatible and designed for higher speeds, extra torque, and longer durability.

❓ Do you provide warranties?

Yes! Please contact us for further information on you specific part.