Evidence reviewed through . Price records retain their own observation dates and conditions.View sourcesMethodology and dataset
GIRDER 格拉德 Bison Pro 2025 105 Di2
- Category
- Road
- Bottom bracket
- Threaded BSA per manufacturer; the page lists '68mm/73mm' shell widths without saying which applies, so confirm the shell before ordering parts
- Sizes
- XS (440 mm), S (490 mm), M (520 mm), L (540 mm)
- Complete weight
- 8.1 kg
Overview
GIRDER 格拉德 Bison Pro 2025 105 Di2. A 105 Di2 build on the 2025 T800 + T1000 all-round frame family with 50 mm carbon wheels at an official ¥17,800.
The recorded complete-bike price is ¥17,800; its date and basis remain visible below.
Buying context
Before buying, verify Exact bottom-bracket shell width (page lists 68 mm/73 mm); Manufacturer-published maximum tire clearance; Complete-weight size, pedal and measurement basis; Frame or frameset weight; Independent exact-model stiffness or deflection measurement; Current mainland China marketplace listing or checkout amount, warranty issuer, warranty term and invoice handling; Frame production factory; Rights-cleared exact product image.
Specifications and evidence
- Product type
- Complete bike
- Category
- Road
- Evidence maturity
- Research profile
- Price basis
- Official price · 2026-10-24
- Drivetrain
- Shimano 105 Di2 R7170 2×12; FC-R7100 52-36T 170 mm crank, CS-R7100 11-36T cassette, CN-M7100 chain system reference
- Brakes
- Shimano 105 R7170 hydraulic disc
- Frame
- 2025 BISON Toray T800 + T1000 lightweight all-round carbon frame and fork, 12 mm thru-axles, UDH dropout, fully hidden routing
- Frame material
- Toray T800 + T1000 carbon frame (reinforced bottom-bracket area) and fork; lay-up is not published
- Frame construction
- EPS-molded frame and fork with fully hidden cable routing
- Stiffness evidence
- No measured or comparative stiffness evidence found; the reinforced bottom-bracket wording is manufacturer construction copy, not a test result
- Bottom bracket
- Threaded BSA per manufacturer; the page lists '68mm/73mm' shell widths without saying which applies, so confirm the shell before ordering parts
- Derailleur hanger
- UDH
- Wheels
- Adler Augen unpainted Classic carbon wavy-rim wheels, 50 mm, ceramic-bearing hubs, Sapim spokes
- Tires
- Maxxis 700C×28C folding tires fitted; maximum clearance is not published
- Cockpit
- Adler Augen integrated carbon handlebar, unpainted 3K finish
- Saddle
- 3D-printed saddle
- Sizes
- XS (440 mm), S (490 mm), M (520 mm), L (540 mm)
- Geometry
- Official chart (shared by the DASH and BISON pages), stack/reach mm for listed sizes: 440 500/366, 490 514/375, 520 527/380, 540 545/384; seat angle 75.5–74°, head angle 70.5–73°, chainstay 410 mm, wheelbase 970–980 mm. The chart also lists 560 and 580 rows that the page does not offer and leaves BB drop blank.
- Complete weight
- 8.1 kg
- Complete weight basis
- Manufacturer-listed weight for this complete bike; size, pedals and weighing method are not stated
Official NEW 2025 BISON PRO page; GIRDER sells by direct inquiry and no mainland China marketplace listing was verified. See docs/research-girder-range-inventory-2026-10-24.md for related generations kept separate.
Price history
| Observed | Price | Type | Conditions |
|---|---|---|---|
| ¥17,800 | Official reference | Manufacturer-listed price on the exact NEW 2025 BISON PRO page; no mainland China marketplace listing or checkout amount was observed |
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.
Exact BISON PRO page lists ¥17,800; frame/fork text identical to DASH; 105 R7170 Di2 2×12, FC-R7100 52-36T 170 mm, CS-R7100 11-36T, CN-M7100, R7170 hydraulic discs; Adler Augen Classic 50 mm carbon wheels; 3D-printed saddle; Maxxis 28C; weight 8.08 kg (basis not stated). Official chart (shared by the DASH and BISON pages), stack/reach mm for listed sizes: 440 500/366, 490 514/375, 520 527/380, 540 545/384; seat angle 75.5–74°, head angle 70.5–73°, chainstay 410 mm, wheelbase 970–980 mm. The chart also lists 560 and 580 rows that the page does not offer and leaves BB drop blank. Read over HTTP, matching the site’s published links.
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.