Tyre Clearance Calculator — Will It Fit?
Check if a tyre size fits your frame and fork with adequate clearance.
How We Calculate This
Clearance Calculation
- Available space = Min(Frame clearance, Fork clearance) - Mudguard space
- Mounted width = Labelled width + Rim width adjustment (+1mm per 2mm over 17mm internal)
- Safety margin = 6mm minimum (3mm each side)
- Max tyre width = Available space - Safety margin
- Actual clearance = Available space - Mounted tyre width
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify results and consult a professional bike fitter where appropriate.