SKU: 16482996602
brand x rennrad

brand x rennrad X-Lab AD9 Aero Road Bike Dura-Ace Di2 Power Meter Carbon Wheels – Grava Adventure Corporation

Sale price$20.48 Regular price$22.75
Save 10%

Pay in installments of $5.69 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 7 - Sep 12

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

brand x rennrad X-Lab AD9 Aero Road Bike Dura-Ace Di2 Power Meter Carbon Wheels – Grava Adventure CorporationThe X Lab AD9 is the top level aero road bike in the X Lab lineup, built around a Toray T 1100 carbon frame, Shimano Dura Ace Di2 drivetrain, integrated power meter crankset, and full carbon Branta C50 ULR wheelset with carbon spokes. This is a true race bike designed for riders who want pro level aero performance without stepping into the typical $12,000$14,000 price category from larger brands. Key Functional Details Toray T 1100 full carbon aero

The X-Lab AD9 is the top-level aero road bike in the X-Lab lineup, built around a Toray T-1100 carbon frame, Shimano Dura-Ace Di2 drivetrain, integrated power meter crankset, and full carbon Branta C50 ULR wheelset with carbon spokes. This is a true race bike designed for riders who want pro-level aero performance without stepping into the typical $12,000–$14,000 price category from larger brands.

Key Functional Details

  • Toray T-1100 full carbon aero frame and fork
  • Shimano Dura-Ace R9250 Di2 2x12 electronic drivetrain
  • Branta carbon crankset with integrated power meter
  • Apple Find My anti-theft technology integrated into crankset
  • Branta C50 ULR carbon wheelset with carbon spokes
  • Integrated Branta carbon cockpit (bar + stem)
  • T47 bottom bracket with 29mm alloy spindle
  • UDH compatible rear dropout
  • Michelin Pro 5 700x28c tires
  • Claimed weight: 6.82 kg / 15.03 lbs (Size L)

Technical Specifications

Frame XDS Carbon Frame, Toray T-1100, UDH Compatible
Fork XDS Carbon Fork, Toray T-1100, 100x12mm Thru-Axle
Handlebar / Stem Branta Carbon Integrated Cockpit
Seatpost XDS Carbon Aero Seatpost
Rear Derailleur Shimano Dura-Ace RD-R9250 Di2
Front Derailleur Shimano Dura-Ace FD-R9250 Di2
Shifters Shimano Dura-Ace ST-R9270 Di2
Brakes Shimano Dura-Ace BR-R9270 Hydraulic Disc
Cassette Shimano Dura-Ace CS-R9200 11-34T
Crankset Branta Carbon Power Meter Crankset, 52/36T, 29mm Alloy Spindle, Apple Find My
Bottom Bracket T47 / 29mm
Rotors Shimano SM-MT900 Front 160mm / Rear 140mm
Chain Shimano CN-M9100
Wheelset Branta C50 ULR Carbon Wheels with Carbon Spokes
Tires Michelin Pro 5 700x28c
Saddle Prologo Nago R4 PAS Carbon Rails (Team Replica) / Selle Italia SLR Boost Carbon Rails (Hawkeye)
Claimed Weight 6.82 kg / 15.03 lbs (Size L)
Sizes XS / S / M / L / XL

Compatibility & Technical Notes

Good Fit: Strong riders, racers, triathletes, and performance-focused road cyclists looking for a true aero race platform with elite-level spec. Ideal for riders who want Dura-Ace Di2, integrated power data, and carbon wheel performance without paying traditional superbike pricing.

Not A Fit: Not ideal for riders prioritizing comfort-first endurance geometry, relaxed fit, or heavy all-road use. Not a good fit for riders who frequently change stem length or handlebar width since the integrated cockpit limits quick fit changes. Not ideal for beginners still figuring out aggressive road positioning.

This is a full aero race bike with integrated routing and an aggressive front-end. Fit matters. Integrated cockpits are clean and fast, but sizing mistakes are more expensive than traditional bar/stem setups. The T47 bottom bracket is a major positive for serviceability compared to many press-fit systems. UDH compatibility also helps future hanger support and replacement.

Service / Ownership Context

The AD9 is built like a true flagship race machine. The included power meter saves a major upgrade cost most brands leave for later, and the Branta carbon wheelset with carbon spokes puts this bike directly against bikes that typically retail for significantly more. This is the kind of bike where proper initial fit, torque setup, and Di2 setup matter from day one. We strongly recommend professional fit confirmation before final delivery.

Fit & Use Signals

  • Best for aero road racing, fast group rides, triathlon prep, and high-speed climbing
  • Good for riders who already know their fit numbers and riding position preferences
  • Excellent value compared to other Dura-Ace Di2 superbikes in the $12k+ category
  • Less ideal for casual fitness riding or frequent fit experimentation
  • Best when purchased with professional sizing guidance due to integrated cockpit limitations
This is the bike customers compare against S-Works, Madone SLR, Dogma, and Aeroad builds. The major hidden value is the included power meter and carbon spoke wheelset—those are often expensive upgrades added after purchase elsewhere. The T47 bottom bracket is a big mechanic win because it is easier to service and quieter long-term than many press-fit systems. Biggest buying mistake is wrong cockpit sizing—bar width and stem length matter here because integrated systems are expensive to swap. Strong upsells include bike fit, ceramic cage bottles, race tires, power meter head unit pairing, and premium pedals. This is not the bike to “figure out your fit later.”
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 16482996602

Discover Niche Categories That Outsell brand x rennrad

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 7 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
G
Verified Purchase
Grma4m&m
Los Angeles, US
★★★★★ 5
They’re fantastic!!!!
Size: X-Large, Color: Multicoloured E-(5-pack)
My clothing size is 16/18 and XL. Even though Amazon suggested a size XXL, I ordered my normal XL and they fit perfectly. The fabric for this style is 92% bamboo viscose and is amazingly soft and almost silky feeling. I had ordered a different boy short in this brand but they were 80% bamboo viscose and the fabric was significantly heavier. I returned those and ordered these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
A
Verified Purchase
Adia
Port Orchard, US
★★★★★ 5
My favorite underwear
Size: Medium, Color: Multicoloured C (5-pack)
Super comfortable!! They are soft and breathable. No pinching, no shifting, and relatively invisible in skirts, pants, and loose dresses. True to size. Excellent quality, holds up well. Only thing is that the wording on the front does come off after a few washes, so you have to differentiate the front from the back of the underwear by how high the seam comes up. I almost exclusively wear this underwear now, I love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
M
Verified Purchase
Musicbookfan
Battle Creek, US
★★★★★ 5
Incredible Comfort
Size: Large, Color: Multicoloured F (5-pack)
Amazing; I’ll be ordering more. Super soft, lightweight, smooth under clothes, incredible comfort! Best underwear! I ordered these because I’m tired of underwear lines when wearing biker shorts/leggings. Other boy shorts were too long or the bottom hem too thick and both of those issues left lines around my upper leg. THESE are *just right* - perfect length and fit. No panty lines on close fitting pants, comfortable under other pants and dresses, great with jumpsuits, and fit well under slip shorts with dresses. NOTE: These take longer to dry, than similar clothes, in the dryer. No shrinking though. SIZE: I ordered these in size L and they fit perfectly. A little snug when first on but they loosened up. For reference I’m 5’4” tall, about 175#, carry my weight in my hips and backside,wear size L sweats/pajamas/loose pants, size 12 jeans.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 23, 2025
K
Verified Purchase
Kathy M Gasperin
Los Angeles, US
★★★★★ 5
Full coverage and full comfort
Size: XX-Large, Color: Multicoloured C (5-pack)
These boyshort underwear are a dream. They’re very soft, very stretchy, and very comfortable. They do not shrink when they’re washed. They’re heavy enough to make you feel like you have something covering you for discretion, but light enough to wear under any type of fabric. I have wide hips and I’m older so I don’t have a tight perky butt anymore. Most underwear tend to either ride up on me or become very uncomfortable. These stay where you put them. And they come all the way up to your waist so that there is no panty line whatsoever. The waist line is soft and comfortably. It does not dig in. They do not ride up and drive you crazy they stay where you put them. I would recommend them to anyone young or old. I have tried so many different styles and materials to find underwear that’s actually comfortable. These are the absolute best I have tried in five years. I just threw all the rest of them out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
J
Verified Purchase
Janet R Geisler
Carnegie, US
★★★★★ 4
Bamboo is an amazing fabric
Size: Large, Color: Multicoloured I (5-pack)
Comfy and soft . I’ve never worn boy shorts before so takes adjusting to. Legs roll sliding pants up but easy to adjust and smooth before zipping up then all day comfort. When I wear skirts or shorts they are perfect for that! I use to wear bike pants under skirts that don’t have to anymore. I like that they don’t creep up like regular underwear. I’m a new fan of bamboo fabric and bought briefs in bamboo as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

recommand products