Evidence reviewed through . Price records retain their own observation dates and conditions.View sourcesMethodology and dataset
GIRDER 格拉德 Tsar 105 Di2 — documented 2023 build
October 2023 dealer post for the documented 105 Di2 build.
2025 used listing; paint differs on each side.
2025 used listing; the other side of the same two-tone bike.
Swipe or scroll the photos, or use the arrow keys, Home and End on the thumbnails.
Overview
GIRDER 格拉德 Tsar 105 Di2 — documented 2023 build. A 2023 retailer post documents a TSAR aero bike with 105 Di2 and 50/60 mm wavy carbon wheels at CNY 18,800, a different build from the official ROAD TSAR Ultegra Di2 at the same list amount.
The recorded complete-bike price is ¥18,800; its date and basis remain visible below.
Buying context
Before buying, verify Brake and crank/cassette details; Complete weight with size, pedal and measurement basis; Frame generation, geometry and bottom-bracket shell standard; Manufacturer-published maximum tire clearance; Frame or frameset weight; Independent exact-model stiffness or deflection measurement; Current new-bike availability, exact-build price, purchase route and warranty terms; Rights-cleared exact product image.
Specifications and evidence
- Product type
- Complete bike
- Category
- Aero road
- Evidence maturity
- Research profile
- Price basis
- China price · historical · 2023-10-05
- Drivetrain
- Shimano 105 Di2 R7170 2×12 (as listed) system reference
- Frame
- TSAR carbon aero frame with a two-sided finish (grey lace / matte black); generation not identified
- Frame material
- Carbon frame per the listing; fiber grade and lay-up not stated
- Stiffness evidence
- No measured or comparative stiffness evidence found; promotional adjectives are not accepted as stiffness evidence
- Wheels
- Wavy-rim carbon wheels, 50 mm front / 60 mm rear (as listed)
- Year note
- The year in the name is the date of the source posts, not an established manufacturer model year.
The reference row uses the 2023-10-05 retailer post. The 2025-06-12 CNY 9,999 asking price stays a separate listing; neither price applies to the official ROAD TSAR Ultegra Di2.
Other documented builds
These are separate configurations. Their weight, drivetrain, and price are not mixed into the catalog reference row.
An asking price, not a sale. Whether the bike is new or used is not stated, and it is not a current new-bike price.
Price history
| Observed | Price | Type | Conditions |
|---|---|---|---|
| ¥18,800 | Observed market record | Retailer-advertised price on a 2023 XHS post with unspecified in-stock discounting; historical reference, not a current offer or checkout. |
About GIRDER
GIRDER (格拉德) is sold in China by 苏州格拉德自行车科技有限公司, a Kunshan company recorded in a public directory as established on 2015-01-27. The company's own site says it licensed a British brand, tracing it to the 1977 founding of the Edinburgh Bicycle Co-operative and to partners in Manchester, with China authorization in 2014. We found no independent evidence for that origin or licence, so it remains a company claim. A 2016 Biketo article calling GIRDER a domestic brand was published under GIRDER's own byline, not as independent reporting.
Visit the official GIRDER websiteSources
These sources support this model page; individual claims retain the confidence of their cited source.
GIRDER TSAR 105 Di2 retailer post (2023-10)
A retailer post presents a TSAR aero road bike with a Shimano 7170 electronic group, wavy carbon wheels of 50 mm front / 60 mm rear depth, and a two-sided finish (grey lace on one side, matte black on the other), at CNY 18,800 with in-stock discounting unspecified. Subjective descriptions of stiffness are not stiffness evidence. No weight, size, clearance or frame generation is given.
GIRDER TSAR R7170 asking-price listing (2025-06)
A listing offers a two-sided-paint TSAR carbon road bike in size M with wavy carbon wheels, ceramic hubs and a Shimano 7170 electronic group at a CNY 9,999 special price including shipping. Condition, completeness and whether the bike is new are not stated; 'discontinued' hype and rider-height advice are not accepted. This is an asking price, not a sale or current new-bike price.
Official contact page lists a sales email and messaging contact and a business address in Lujia Town, Kunshan. It is a direct sales-inquiry route; no online checkout, marketplace store link, warranty term or shipping policy is published.
Brand-authored history. States that GIRDER Bicycle Technology Co., Ltd. was founded in 2015, introduced the British bicycle brand GIRDER and handles design, R&D and sales; positions products in the CNY 5,000–20,000 range. Claims the brand dates back to the 1977 founding of the Edinburgh Bicycle Co-operative, that partners in Manchester created the GIRDER brand, and that authorization to enter China succeeded in 2014. These origin and licensing claims are company-reported and were not independently corroborated. The HTTPS certificate had expired on access; the page was read over HTTP.