Evidence reviewed through . Price records retain their own observation dates and conditions.View sourcesMethodology and dataset
X-LAB AD8. A current aero complete bike with an official 7.6 kg Shimano 105 Di2 build, full mainland specification and a 32 mm manufacturer maximum tire clearance.
The recorded complete-bike price is ¥26,980; its date and basis remain visible below.
These are separate configurations. Their weight, drivetrain, and price are not mixed into the catalog reference row.
The selected listing option was available with seven-day preorder dispatch and CNY 8 shipping; it is not treated as the official C50 TEAM trim.
Exact owner/custom build context only; no current sale price is attached.
The catalog row uses the coherent official mainland R7170 Di2 / Branta C50 TEAM build. A cheaper selected Taobao trim and a lighter custom owner build remain separate below rather than donating their price or weight to that row.
Before buying, verify Final dealer stock, delivery total and mainland warranty issuer for the preferred official build; Independent complete-bike measurement for the preferred official C50 TEAM configuration.
Useful for seeing the bike and hearing ride or build context. The shown build may differ, and video commentary does not verify the current China price, exact BOM, or published specifications.
Exact X-LAB AD8 custom-build context. The shown configuration is not treated as the official mainland reference trim and does not donate its price, weight or components to that record.
China Rides · 2026-06-19. The channel page lists Lameda and Light Bicycle as partners with discount codes; no model-specific supply statement was established for this video. Disclosure basis.These sources support this model page; individual claims retain the confidence of their cited source.
Official mainland specification for the R7170 Di2 / Branta C50 TEAM complete bike. It states 7.6 kg without pedals in size M, Toray T800 x M40X carbon, T47, Shimano 105 Di2 2x12, 11-34T, 50/34T, Michelin Pro 5 700x28C tires, five-size geometry and a 100 kg maximum load.
Current exact official mainland purchase page retains the CNY 26,980 reference for the R7170 Di2 / Branta C50 TEAM complete bike and warns that final price varies by location and delivery method.
Official current platform page states a 32C maximum tire clearance. Its 7.41 kg size-L Branta C45 UL build is a different configuration from the mainland season build and is not used as that build's weight.
The signed-in public listing showed CNY 21,980 for the selected standard Astana, steel-spoke carbon-wheel, Shimano 105 electronic large-package build in size S. It stated 8 kg net weight but did not state a pedal or measurement basis. Shipping was CNY 8, stock was shown as available with seven-day preorder dispatch, and a Taobao-coin incentive was not deducted. No account, delivery-address or transaction data is retained.
Exact-model public build post dated 2026-05-24. It records a size-L AD8 team build with Shimano R7170 Di2, 静藤惯性 wheels, 艾瑞森 tires, a 大石 3D TOP saddle and 7.56 kg fully equipped weight. This is retained as a separate custom build, not merged into the catalog reference trim. The validated archive contains 10 detailed posts, 112 comment rows and 46 media files.
Exact-model ride review describes the AD8 as stiff through the chassis with strong power transfer and an immediate response under hard efforts. This is qualitative ride evidence, not an instrumented frame-deflection measurement.
