DESCRIPTION
THE FASTEST ULTEGRA SHIFTING TO DATE
Shimano Ultegra RD-R8150 12-Speed Rear Derailleur is more versatile than ever thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes. It also packs the fastest, most precise shifting out there into a more affordable option.
This rear derailleur is updated with Shadow technology. Shadow tech is made with a low-profile design and single tension construction, so the derailleur does not hit the chainstay in rough riding conditions. The result is smooth and silent performance.
The Ultegra RD-R8150 12-Speed Rear Derailleur is also customizable via the Shimano E-Tube Project App, which allows you to personalize your bike, update firmware, and maintain it by connecting it wirelessly to your bike.
FEATURES
- 58% faster than RD-R9150
- Compact design includes an integrated wireless unit, charger, switch
- LED status indicator (Battery indicator, Pairing, Adjust mode etc.)
- Wider range capacity
- Max. low sprocket: 34T
- Weight: 262g
PLU: 65377
SIZE INFORMATION

SHIPPING & DELIVERY
Free Shipping
We offer free shipping on orders over $99 NZD*. Orders under this threshold incur a flat rate of $7.20**
*Excludes large or bulky items, which are charged between $25.00 and $100.00, depending on size, weight, and delivery location. Shipping is calculated at checkout.
**Rural delivery surcharge: An additional $6.00 is applied to rural addresses.
Click & Collect
Prefer to pick up your order? Select Click & Collect at checkout and collect from any Pushbikes store. Note: Some products are drop-shipped from our suppliers and may not be ready for immediate collection. We'll notify you when your order is ready.
Delivery Time Frames
In-Stock Items:
Orders for items in stock at our store are dispatched within 1–2 business days (weekdays) of payment. Orders placed after 3 pm will be processed the following business day. Please allow an additional 2 days for rural delivery.
From Supplier
Items shipped directly from our suppliers are usually dispatched within 2–4 business days. Some may take up to 8 business days, depending on the supplier. Estimated delivery times are shown on each product page. Rural deliveries may take an extra 2 days.
Tracking Information
You'll receive a tracking number by email as soon as your order has been dispatched. If you haven’t received tracking details within your expected delivery window, please contact us to confirm.
Shipping Bikes
- Giant, LIV, and Norco bikes are not eligible for shipping due to brand warranty and dealer policies. These must be collected in-store, fully assembled.
- Electric bikes cannot be shipped due to Dangerous Goods restrictions (lithium batteries). These are available for Click & Collect only.
- Other bikes can be shipped with the following rates:
- Kids bikes: $25.00
- Standard bikes: $75.00
Shipping rates are automatically calculated at checkout. If your bike falls outside this standard pricing (e.g., large-size mountain bikes or freight to remote areas), we may adjust the shipping cost. If you're unsure, feel free to contact us before ordering.
Processing of bikes can take up to 7 days if they are needing to be shipped from our suppliers.
Returns and Warranty
For information about returning a product or submitting a warranty claim, please see our Returns and Warranty Policy here.
Questions
If you're unsure about shipping rates or have any questions, get in touch with us with any questions.