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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
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Description
Ultegra R8150 Di2 Rear Derailleur (12-Speed)With the fast and accurate Di2 shifting technology, the Shimano 12 speed Ultegra RD R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11 28, 11 30, and 11 34 cassettes. FEATURES: Compact design includes an integrated wireless unit, charger, switch Wider range capacity Max. low sprocket 34t LED status indicator Battery indicator, pairing, adjust mode etc. SPECS: Largest Cog: 34 Rear Derailleur Mount
With the fast and accurate Di2 shifting technology, the Shimano 12-speed Ultegra RD-R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes.
FEATURES:
- Compact design includes an integrated wireless unit, charger, switch
- Wider range capacity
- Max. low sprocket 34t
- LED status indicator
- Battery indicator, pairing, adjust mode etc.
SPECS:
- Largest Cog: 34
- Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10x1 Standard
- Chain Wrap Capacity (teeth): 39
- Rear Der/Shifter Compatibility: Shimano Road Di2
- Cage Length: Medium
- Drivetrain Speeds: 12
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Chic - Nice - backpack
Color: Upgrade-champagne Brown, Size: 14 Inch
Best laptop backpack
Color adorable
Quality amazing
Thousands of pockets on the sides , inside back and front , plenty of storage
Material is great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
★★★★★ 5
Perfect for a backpack or a purse
Color: Upgrade-black, Size: 14 Inch, Color: Upgrade-black, Size: 14 Inch
I love this black backpack. It has gold zippers and brown accents and it has a pocket in the front two on the side three inside and a pocket on the back of the laptop pocket. I have a disability and have to carry extra stuff so this is a perfect size for me to wear in my back every day. It’s black nylon so it should stay clean. I tend to drop things. I think this will be great, but even without a disability, this is a great backpack. It’s so cute.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
★★★★★ 5
Perfect day bag!
Color: Upgrade-black, Size: 15.6 Inch
Super convenient and lightweight. I used it for two back-to-back conferences last week and it was PERFECT for what I needed to tote along all day. Fits my regular sized computer (15-16 inch) and even held my water bottle (which is larger than a regular plastic water bottle).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
★★★★★ 5
Great backpack
Color: Upgrade-black, Size: 15.6 Inch
Stylish and lightweight for travel and work. Sturdy, comfortable straps. After trying about 5 different backpacks, I’m keeping this one.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Stylish, light (laptop, phone, notebook & pen) +
Color: Upgrade-apricot, Size: 15.6 Inch, Color: Upgrade-apricot, Size: 15.6 Inch
Perfect for work! I use it for laptop, charger and few items necessary at work. I have a few blocks to walk from parking to work location and this bag has replaced last backpack and purse. Much easier to carry one item than two or more. Plus, it has enough room if you need to use it for clothes and toiletries (road-trip) or carry-on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
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