Shimano Dura-Ace R9150 11 Speed Di2 Rear Derailleur - Short Cage
- Description
The Shimano Dura-Ace R9150 11 Speed Di2 Rear Derailleur - Short Cage takes Shadow technology from Shimano’s MTB range and introduces it to the road. The shadow design places the rear derailleur under the chain stay and cassette to give a slimmer profile, which not only improves aerodynamics but helps prevent damage in a crash.
The Shadow design offers faster wheel changes thanks to the fact that it moves the derailleur out of the way of the dropouts. It also offers faster and more precise shifting than ever before.
Shimano's 9150 groupset brings their Syncro-Shift technology to the road too. Syncro-Shift technology enables the front derailleur to read the position of the rear derailleur and will automatically operate the front shift to position the gears in the most efficient gear and best chain line so you'll never have to worry about front shifting and correction shifts again.
- Shimano synchronized shift
- Simplified shifting option
- Shimano Shadow RD low-profile design Pulley maintains consistent distance to cassette for increased shift stability
- Less damage in a crash
- Maintains compact and smooth appearance
- Total capacity: 35T
- Weight: 204g
Easy Returns
Free shipping on orders over $150 (some exclusions apply)
Help
Good to know
Shipping, returns and the fine print. Still stuck? Call or visit either shop.
How does shipping work?
Canada Post (Priority or Express): delivery in 7–14 business days, with tracking in your shipping confirmation.
UPS: usually 2–7 business days (customs can stretch it to 15), fully tracked.
Cost depends on the size and weight of the package.
Is shipping free?
Most orders over $150 in Canada ship free.
Bikes, frames, wheelsets, indoor trainers and other bulky items don't. One of our team will contact you with shipping options for those.
A few items, like Favero Assioma pedals and Nimbl × Nike shoes, always have a shipping charge.
When will my order ship?
Please allow 1–2 business days to pack and ship most orders. Bikes, wheels and trainers can take 5–7 business days to prepare. Busy periods can add a little time.
Can I return it?
You have 30 days from the date of purchase. After 30 days, purchases are final sale. Special orders may have a restocking fee.
Bring proof of purchase. Items must be unused and in the original packaging.
What's final sale?
- Sale items
- Gift cards
- Tools
- Cleaners and maintenance products
- Downloadable software
- Health, hygiene and personal care items
- Food and nutrition
- Hazardous materials, flammable liquids and gases
- Items with obvious signs of use or damaged packaging
Please don't send your purchase back to the manufacturer. Some situations may only qualify for a partial refund.
How do I send a return?
Mail your item(s) to 151 Robinson Street, Oakville, Ontario L6J 7N3.
Return shipping is on you, and original shipping isn't refunded. For exchanges, shipping the new item is taken off your refund. For anything over $75, use tracked shipping or insurance.
Once we've received and checked your return, we'll email you. Approved refunds go back to your original payment method, so allow up to 5 business days for them to show.
If you declined shipping protection, Racer Sportif isn't liable for packages lost, damaged or stolen after they leave the store.