Bianchi Arcadex tyre clearance: Measured Width and Mudguards
Bianchi Arcadex tyre clearance needs two checks before a tyre is ordered: which frame the instructions cover, and what width the mounted tyre actually measures. The carbon Arcadex supplement dated 18 November 2024 sets a 50 mm maximum section. Bianchi's accompanying range page adds a separate 45 mm limit when clip-on mudguards are used.

Read Bianchi Arcadex tyre clearance as an actual measurement
Pages 3–4 of the supplement make an unusually useful distinction. The maximum is tied to the tyre's actual size, measured with a gauge, rather than the number printed on its casing. A tyre sold under a 50 mm label therefore still needs measurement; its label alone does not demonstrate compliance with the stated maximum.
Record the tyre model, wheel setup and measured section when asking a workshop to check a candidate. This turns a vague question about the widest possible tyre into a specific fit enquiry. A measured width within the stated ceiling is one necessary check, rather than evidence that every tyre, wheel and accessory combination has been approved.
Keep the mudguard configuration in the question
The official Arcadex range page describes 700c wheels with tyres up to 50 mm, or 45 mm when clip-on mudguards are fitted. Those are different configurations. Carry the mudguard qualification into your parts request instead of quoting the larger number while leaving the intended guards out of the discussion.
The page does not supply a universal list of approved mudguard models or a guarantee for every product described as clip-on. Ask the dealer to assess the actual guard, tyre and frame together. Treating 45 mm as an accessory-qualified boundary preserves the useful information without turning it into an unsupported compatibility promise.
Identify the carbon platform before using either figure
These figures belong to the carbon platform identified by the supplement and its range page. The manual index places the Arcadex PRO/COMP supplement under 2024; the PDF's 2026 upload directory is not a different model-year specification. Arcadex AL, E-Arcadex and earlier bicycles need their own applicable documentation.
The historical photograph here is useful for recognising the Arcadex family name, but its source identifies an older bicycle. Its visible tyres and wheels do not verify the newer frame's limits. When the frame's generation is uncertain, resolve that identity before using a later clearance figure to choose a replacement.
FAQ
Does a 50 mm sidewall marking settle the fit question?
No. The supplement expressly refers to actual tyre section measured with a gauge. The casing label is insufficient on its own.
Which figure applies with clip-on mudguards?
The range page gives 45 mm for that configuration, compared with up to 50 mm without that qualification. The actual guard still needs a compatibility check.
Can I transfer this limit to an older Arcadex?
The cited documents do not establish that transfer. Confirm the older frame's applicable instructions instead of inferring clearance from the shared model name.
Once the frame generation is established, the Arcadex geometry comparison helps with a separate fit decision. Further reference articles are collected in the Bianchi topic.
Sources: Bianchi carbon Arcadex supplement, 18 November 2024; Bianchi Arcadex range information; Bianchi official manual index.